One-pot synthesis of furo[3,2-c]oxepin-4-one derivatives by the CAN-mediated reaction of tert-butyl 2-(2-hydroxytetrahydrofuran-2-yl)acetates with alkenes

Chemistry Letters

Volumn 33, Issue 12, 2004, Pages 1588-1589

  Kobayashi, Kazuhiro ^a   Umakoshi, Hironobu ^a   Hayashi, Kazutaka ^a   Morikawa, Osamu ^a   Konishi, Hisatoshi ^a  

^a TOTTORI UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID DERIVATIVE; ALKENE DERIVATIVE; AMMONIUM NITRATE; CERIUM; FURAN DERIVATIVE; LACTONE DERIVATIVE; OXEPINE DERIVATIVE;

AQUEOUS SOLUTION; ARTICLE; CHEMICAL REACTION; COMBUSTION; CYCLIZATION; LACTONIZATION; MASS SPECTROMETRY; OXIDATION; SUBSTITUTION REACTION; SYNTHESIS;

EID: 14844333190     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2004.1588     Document Type: Article

References (30)

1. K. Kobayashi, M. Mori, T. Uneda, O. Morikawa, and H. Konishi, Chem. Lett., 1996, 451; K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, K. Sakashita, H. Akamatsu, K. Tanaka, M. Uchida, T. Uneda, T. Kitamura, O. Morikawa, and H. Konishi, Heterocycles, 51, 2881 (1999); K. Kobayashi, H. Tanaka, K. Tanaka, K. Yoneda, O. Morikawa, and H. Konishi, Synth. Commun., 30, 4277 (2000); K. Kobayashi, K. Nagase, O. Morikawa, and H. Konishi, Heterocycles, 60, 939 (2003).
2. K. Kobayashi, M. Mori, T. Uneda, O. Morikawa, and H. Konishi, Chem. Lett., 1996, 451; K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, K. Sakashita, H. Akamatsu, K. Tanaka, M. Uchida, T. Uneda, T. Kitamura, O. Morikawa, and H. Konishi, Heterocycles, 51, 2881 (1999); K. Kobayashi, H. Tanaka, K. Tanaka, K. Yoneda, O. Morikawa, and H. Konishi, Synth. Commun., 30, 4277 (2000); K. Kobayashi, K. Nagase, O. Morikawa, and H. Konishi, Heterocycles, 60, 939 (2003).
3. K. Kobayashi, M. Mori, T. Uneda, O. Morikawa, and H. Konishi, Chem. Lett., 1996, 451; K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, K. Sakashita, H. Akamatsu, K. Tanaka, M. Uchida, T. Uneda, T. Kitamura, O. Morikawa, and H. Konishi, Heterocycles, 51, 2881 (1999); K. Kobayashi, H. Tanaka, K. Tanaka, K. Yoneda, O. Morikawa, and H. Konishi, Synth. Commun., 30, 4277 (2000); K. Kobayashi, K. Nagase, O. Morikawa, and H. Konishi, Heterocycles, 60, 939 (2003).
4. K. Kobayashi, M. Mori, T. Uneda, O. Morikawa, and H. Konishi, Chem. Lett., 1996, 451; K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, K. Sakashita, H. Akamatsu, K. Tanaka, M. Uchida, T. Uneda, T. Kitamura, O. Morikawa, and H. Konishi, Heterocycles, 51, 2881 (1999); K. Kobayashi, H. Tanaka, K. Tanaka, K. Yoneda, O. Morikawa, and H. Konishi, Synth. Commun., 30, 4277 (2000); K. Kobayashi, K. Nagase, O. Morikawa, and H. Konishi, Heterocycles, 60, 939 (2003).
5. K. Kobayashi, M. Mori, T. Uneda, O. Morikawa, and H. Konishi, Chem. Lett., 1996, 451; K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, K. Sakashita, H. Akamatsu, K. Tanaka, M. Uchida, T. Uneda, T. Kitamura, O. Morikawa, and H. Konishi, Heterocycles, 51, 2881 (1999); K. Kobayashi, H. Tanaka, K. Tanaka, K. Yoneda, O. Morikawa, and H. Konishi, Synth. Commun., 30, 4277 (2000); K. Kobayashi, K. Nagase, O. Morikawa, and H. Konishi, Heterocycles, 60, 939 (2003).
6. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
7. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
8. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
9. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
10. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
11. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
12. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
13. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
14. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
15. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
16. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
17. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
18. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
19. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
20. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
21. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
22. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
23. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
24. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
25. 3, have been used as a mediator for the cycloaddition reaction of 1,3-dicarbonyl and related compounds with alkenes forming 1,2-dihydrofuran derivatives. For earlier works: W. J. De Klein, "Organic Syntheses by Oxidation with Metal Compounds," ed. by W. J. Mijs and C. R. H. I. de Jonge, Plenum Press, New York (1986), Chapter 4; For recent reviews: V. Nair, J. Matthew, and J. Prabhakaran, Chem. Soc. Rev., 26, 127 (1997); J. Iqval and M. Mukhopadhyay, Synlett, 1997, 876; For more recent reports: Y. R. Lee, J. Y. Suk, and B. S. Kim, Org. Lett., 2, 1387 (2000); Y. R. Lee, B. S. Kim, and H. I. Kweon, Tetrahedron, 56, 3867 (2000); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron Lett., 41, 7751 (2000); Y. R. Lee, B. S. Kim, and D. H. Kim, Tetrahedron, 56, 8845 (2000); S. Kajiwara, H. Nishino, and K. Kurosawa, Heterocycles, 54, 171 (2001); Y. R. Lee and B. S. Kim, Synth. Commun., 31, 381 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Chem. Commun., 2001, 1350; M. Yilmaz and A. T. Pekel, Synth. Commun., 31, 2189 (2001); G. Bar, A. F. Parsons, and C. B. Thomas, Tetrahedron, 57, 4719 (2001); V. Nair, P. M. Treesa, D. Maliakal, and N. P. Rath, Tetrahedron, 57, 7705 (2001); S. Muthusamy, C. Gunanathan, and S. A. Babu, Synlett, 2002, 787; Y. R. Lee, B. S. Kim, Y. U. Yung, W. S. Koh, J. S. Cha, and N. W. Kim, Synth. Commun., 32, 3099 (2002); M. C. S. de-Mattos, S. P. L. de-Souza, and S. M. Elias, Heterocycl. Commun., 9, 247 (2003); Y. R. Lee, K. Y. Kang, G. J. Lee, and W. K. Lee, Synthesis, 2003, 1977; N. N. Karade, S. G. Shirodkar, M. N. Patil, R. A. Potrekar, and H. N. Karade, Tetrahedron Lett., 44, 6729 (2003); R. Kumabe and H. Nishino, Heterocycl. Commun., 10, 135 (2004); V. Jadhav, M. Y. Park, and Y. H. Kim, Synthesis, 2004, 329 and references cited therein.
26. K. Kobayashi, H. Minakawa, H. Sakurai, S. Kujime, and H. Suginome, J. Chem. Soc., Perkin Trans. 1, 1993, 3007.
27. Previous syntheses of furo[3,2-c]oxepin-4-one derivatives: D. P. Curran, T. M. Morgan, C. E. Schwartz, B. B. Snider, and M. A. Dombroski, J. Am. Chem. Soc., 113, 6607 (1991); H. A. Stefani, N. Petragnani, C. J. Valduga, and S. A. Brandt, Teterahedron Lett., 38, 4977 (1997); A. Lattanzi, P. Iannece, and A. Scettri, Teterahedron Lett., 40, 3899 (1999).
28. Previous syntheses of furo[3,2-c]oxepin-4-one derivatives: D. P. Curran, T. M. Morgan, C. E. Schwartz, B. B. Snider, and M. A. Dombroski, J. Am. Chem. Soc., 113, 6607 (1991); H. A. Stefani, N. Petragnani, C. J. Valduga, and S. A. Brandt, Teterahedron Lett., 38, 4977 (1997); A. Lattanzi, P. Iannece, and A. Scettri, Teterahedron Lett., 40, 3899 (1999).
29. Previous syntheses of furo[3,2-c]oxepin-4-one derivatives: D. P. Curran, T. M. Morgan, C. E. Schwartz, B. B. Snider, and M. A. Dombroski, J. Am. Chem. Soc., 113, 6607 (1991); H. A. Stefani, N. Petragnani, C. J. Valduga, and S. A. Brandt, Teterahedron Lett., 38, 4977 (1997); A. Lattanzi, P. Iannece, and A. Scettri, Teterahedron Lett., 40, 3899 (1999).
30. +, 6.7), 191 (6.9), 152 (99), 124 (100).