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K. Kobayashi, T. Uneda, M. Kawakita, O. Morikawa, and H. Konishi, Tetrahedron Lett., 38, 837 (1997); K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, M. Uchida, T. Uneda, M. Tanmatsu, O. Morikawa, and H. Konishi, Tetrahedron Lett., 39, 7725 (1998) and references cited therein.
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K. Kobayashi, T. Uneda, M. Kawakita, O. Morikawa, and H. Konishi, Tetrahedron Lett., 38, 837 (1997); K. Kobayashi, T. Uneda, K. Tanaka, M. Mori, H. Tanaka, O. Morikawa, and H. Konishi, Bull. Chem. Soc. Jpn., 71, 1691 (1998); K. Kobayashi, M. Uchida, T. Uneda, M. Tanmatsu, O. Morikawa, and H. Konishi, Tetrahedron Lett., 39, 7725 (1998) and references cited therein.
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0009169744
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This is a modification of the Kakisawa's method, which gives 3-methylnaphtho[2,3-b]furan-4,9-diones from 2-acetoxy-1,4-naphtho-quinones and an enamine derived from propanal; H. Kakisawa and Y. Inouye, Tetrahedron Lett., 1969, 1929; H. Kakisawa and M. Tateishi, Bull. Chem. Soc. Jpn., 43, 824 (1970); M. Tateishi, T. Kusumi, and H. Kakisawa, Tetrahedron, 27, 237 (1971).
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This is a modification of the Kakisawa's method, which gives 3-methylnaphtho[2,3-b]furan-4,9-diones from 2-acetoxy-1,4-naphtho-quinones and an enamine derived from propanal; H. Kakisawa and Y. Inouye, Tetrahedron Lett., 1969, 1929; H. Kakisawa and M. Tateishi, Bull. Chem. Soc. Jpn., 43, 824 (1970); M. Tateishi, T. Kusumi, and H. Kakisawa, Tetrahedron, 27, 237 (1971).
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Kakisawa, H.1
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7
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0001136414
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This is a modification of the Kakisawa's method, which gives 3-methylnaphtho[2,3-b]furan-4,9-diones from 2-acetoxy-1,4-naphtho-quinones and an enamine derived from propanal; H. Kakisawa and Y. Inouye, Tetrahedron Lett., 1969, 1929; H. Kakisawa and M. Tateishi, Bull. Chem. Soc. Jpn., 43, 824 (1970); M. Tateishi, T. Kusumi, and H. Kakisawa, Tetrahedron, 27, 237 (1971).
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Hanack, M.8
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0001242462
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P. de la Cruz, N. Martin, F. Miguel, C. Seoane, A. Albert, F. H. Cano, A. Leverenz, and M. Hanack, Synth. Met., 48, 59 (1992); P. de la Cruz, N. Martin, F. Miguel, C. Seoane, A. Albert, F. H. Cano, A. Gonzalez, and M. Pingarron, J. Org. Chem., 57, 6192 (1992).
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M. D. Lee, T. S. Dunne, C. C. Chang, G. A. Ellestad, M. M. Siegel, G. O. Morton, W. J. McGahren, and D. B. Borgers, J. Am. Chem. Soc., 109, 3446 (1987); T. Konoshima and M. Kozuka, J. Nat. Prod., 52, 987 (1989).
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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Kikuchi, T.1
Maruyama, A.2
Ohtani, N.3
Nagahara, S.4
Tanaka, H.5
Sakakibara, T.6
Tanaka, T.7
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13
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0009092661
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245248d
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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14
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0009095813
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Eur. Patent 592366 (1994)
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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Fischer-Reimann, E.1
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15
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0009092969
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108509d
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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16
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0009095814
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Jpn. Patent 15881 (1997)
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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Shibata, T.1
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Hayata, H.4
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0009092662
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231511d
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T. Kikuchi, A. Maruyama, N. Ohtani, S. Nagahara, H. Tanaka, T. Sakakibara, and T. Tanaka, Eur. Patent 466094 (1992); Chem. Abstr., 116, 245248d (1992); E. Fischer-Reimann, Eur. Patent 592366 (1994); Chem. Abstr., 121, 108509d (1994); T. Shibata, T. Suzuki, A. Kinoshita, and H. Hayata, Jpn. Patent 15881 (1997); Chem. Abstr., 126, 231511d (1997).
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V. Weinmayr, J. Am. Chem. Soc., 74, 4353 (1952); H. Tagawa and K. Ueno, Chem. Pharm. Bull., 26, 1384 (1973); M. Watanabe and V. Snieckus, J. Am. Chem. Soc., 102, 1457 (1980); A. Acosta, P. de la Cruz, P. De Miguel, E. Diez-Barra, A. de la Hoz, F. Langa, M. Majdoub, N. Martin, C. Sanchez, and C. Seoane, Tetrahedron Lett., 36, 2165 (1995).
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Seoane, C.10
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23
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37049073248
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The only report on the generation of this mercapto quinone and its use in organic synthesis has been recorded by one of the present authors; H. Suginome, K. Kobayashi, A. Konishi, H. Sakurai, and H. Minakawa, J. Chem. Soc., Chem. Commun., 1993, 807.
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Minakawa, H.5
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24
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37049070945
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For recent synthetic elaborations of 2-sulfenyl-1,4-naphthoquinones, see: W.-B. Kang, T. Sekiya, T. Toru, and Y. Ueno, J. Chem. Soc., Perkin Trans. I, 1990, 441; K. Nakagawa, Chem. Express, 6, 177 (1991); M. A. Brimble, E. Ireland, and S. J. Phythian, Tetrahedron Lett., 32, 6417 (1991); M. A. Brimble and E. Ireland, J. Chem. Soc., Perkin Trans. I, 1994, 3109; C.-P. Chuang and S.-F. Wang, Heterocycles, 43, 2215 (1996).
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Kang, W.-B.1
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Toru, T.3
Ueno, Y.4
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25
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37049070945
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For recent synthetic elaborations of 2-sulfenyl-1,4-naphthoquinones, see: W.-B. Kang, T. Sekiya, T. Toru, and Y. Ueno, J. Chem. Soc., Perkin Trans. I, 1990, 441; K. Nakagawa, Chem. Express, 6, 177 (1991); M. A. Brimble, E. Ireland, and S. J. Phythian, Tetrahedron Lett., 32, 6417 (1991); M. A. Brimble and E. Ireland, J. Chem. Soc., Perkin Trans. I, 1994, 3109; C.-P. Chuang and S.-F. Wang, Heterocycles, 43, 2215 (1996).
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Chem. Express
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Nakagawa, K.1
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26
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0025950633
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For recent synthetic elaborations of 2-sulfenyl-1,4-naphthoquinones, see: W.-B. Kang, T. Sekiya, T. Toru, and Y. Ueno, J. Chem. Soc., Perkin Trans. I, 1990, 441; K. Nakagawa, Chem. Express, 6, 177 (1991); M. A. Brimble, E. Ireland, and S. J. Phythian, Tetrahedron Lett., 32, 6417 (1991); M. A. Brimble and E. Ireland, J. Chem. Soc., Perkin Trans. I, 1994, 3109; C.-P. Chuang and S.-F. Wang, Heterocycles, 43, 2215 (1996).
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Brimble, M.A.1
Ireland, E.2
Phythian, S.J.3
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37049080292
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For recent synthetic elaborations of 2-sulfenyl-1,4-naphthoquinones, see: W.-B. Kang, T. Sekiya, T. Toru, and Y. Ueno, J. Chem. Soc., Perkin Trans. I, 1990, 441; K. Nakagawa, Chem. Express, 6, 177 (1991); M. A. Brimble, E. Ireland, and S. J. Phythian, Tetrahedron Lett., 32, 6417 (1991); M. A. Brimble and E. Ireland, J. Chem. Soc., Perkin Trans. I, 1994, 3109; C.-P. Chuang and S.-F. Wang, Heterocycles, 43, 2215 (1996).
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Ireland, E.2
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0000040298
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For recent synthetic elaborations of 2-sulfenyl-1,4-naphthoquinones, see: W.-B. Kang, T. Sekiya, T. Toru, and Y. Ueno, J. Chem. Soc., Perkin Trans. I, 1990, 441; K. Nakagawa, Chem. Express, 6, 177 (1991); M. A. Brimble, E. Ireland, and S. J. Phythian, Tetrahedron Lett., 32, 6417 (1991); M. A. Brimble and E. Ireland, J. Chem. Soc., Perkin Trans. I, 1994, 3109; C.-P. Chuang and S.-F. Wang, Heterocycles, 43, 2215 (1996).
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30
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0009167493
-
-
note
-
The reactions with equimolar amount of the enamines gave the products in somewhat diminished yields.
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-
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31
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0009092365
-
-
note
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+, 46), 255 (100).
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