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1542752669
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San Diego, CA, March American Chemical Society: Washington, DC, 1994; ORGN 482
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Presented in preliminary form: West, F. G.; Chase, C. E.; Bender, J. A. Abstracts of Papers, 207th National Meeting of the American Chemical Society, San Diego, CA, March 1994; American Chemical Society: Washington, DC, 1994; ORGN 482.
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(1994)
Abstracts of Papers, 207th National Meeting of the American Chemical Society
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West, F.G.1
Chase, C.E.2
Bender, J.A.3
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3
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1542437738
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(a) Rigby, J. H.; Ateeq, H. S.; Cuisiat, S. V.; Ferguson, M. D.; Henshilwood, J. A.; Krueger, A. C.; Ogbu, C. O.; Short, K. M.; Heeg, M. J. J. Am. Chem. Soc. 1993, 115, 8490.
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Krueger, A.C.6
Ogbu, C.O.7
Short, K.M.8
Heeg, M.J.9
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Wender, P.A.1
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5
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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Wagner, P.J.1
Sakamoto, M.2
Madkour, A.E.3
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8
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0000150215
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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West, F.G.1
Hartke-Karger, C.2
Koch, D.J.3
Kuehn, C.E.4
Arif, A.M.5
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9
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0000382832
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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Harmata, M.1
Elahmad, S.2
Barnes, C.L.3
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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Sieburth, S.McN.1
Heil, G.2
Lin, C.-H.3
Kuan, D.P.4
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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Tetrahedron Lett.
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Sieburth, S.McN.1
Ravindran, K.2
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0000419458
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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Sieburth, S.McN.1
Joshi, P.V.2
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0000660586
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[6+2]: (a) Feldman, K. S.; Wu, M. J.; Rotella, D. P. J. Am. Chem. Soc. 1990, 112, 8490. (b) Pirrung, M. C. J. Org. Chem. 1987, 52, 1635. (c) Wagner, P. J.; Sakamoto, M.; Madkour, A. E. J. Am. Chem. Soc. 1992, 114, 7298. [4+3]: (d) West, F. G.; Hartke-Karger, C.; Koch, D. J.; Kuehn, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 6795. (e) Harmata, M.; Elahmad, S.; Barnes, C. L. J. Org. Chem. 1994, 59, 1241. [4+4]: (f) Sieburth, S. McN.; Heil, G.; Lin, C.-H.; Kuan, D. P. J. Org. Chem. 1994, 59, 80. (g) Sieburth, S. McN.; Ravindran, K. Tetrahedron Lett. 1994, 35, 3861. (h) Sieburth, S. McN.; Joshi, P. V. J. Org. Chem. 1993, 58, 1661. (i) West, F. G.; Chase, C. E.; Arif, A. M. J. Org. Chem. 1993, 58, 3794.
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West, F.G.1
Chase, C.E.2
Arif, A.M.3
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84993890030
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For a recent study of the photochemistry of pyran-2-ones bearing C-4 tethered alkenes and dienes, see: Shimo, T.; Ueda, S.; Somekawa, K. J. Heterocyclic Chem. 1995, 32, 341.
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J. Heterocyclic Chem.
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Shimo, T.1
Ueda, S.2
Somekawa, K.3
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33845279769
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Moreno-Manas, M.1
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Virgili, A.3
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2)
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2).
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0028866088
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(c) For a recent study implicating β-lactone intermediates in 2-pyrone photorearrangements, see: Chase, C. E.; Jarstfer, M. B.; Arif, A. M.; West, F. G. Tetrahedron Lett. 1995, 36, 8531.
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(1995)
Tetrahedron Lett.
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Chase, C.E.1
Jarstfer, M.B.2
Arif, A.M.3
West, F.G.4
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1H NMR spectra
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1H NMR spectra.
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1542542465
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4i led to low conversion and a 1:1 ratio of endo and exo cycloadducts. Low water solubility (ca. 9 mg/0.5 L) precluded the use of aq. LiCl
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4i led to low conversion and a 1:1 ratio of endo and exo cycloadducts. Low water solubility (ca. 9 mg/0.5 L) precluded the use of aq. LiCl.
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0008335771
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Effenberger, F.; Ziegler, T.; Schöwälder, K.; Kesmarsky, T.; Bauer, B. Chem. Ber. 1986, 119, 3394.
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Chem. Ber.
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Effenberger, F.1
Ziegler, T.2
Schöwälder, K.3
Kesmarsky, T.4
Bauer, B.5
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1542542472
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note
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4), filtered, and concentrated to a yellow oil. The crude product was purified by radial chromatography (silica gel, 1 mm rotor, hexanes/EtOAc 19:1) to give 5i (10 mg, 0.029 mmol, 20%), 6i (29 mg, 0.084 mmol, 58%) and 8i (2 mg, 0.006 mmol, 4%).
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0001604648
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For a recently published, related approach to a 5-8-5 skeleton via an intramolecular [4+3]-cycloaddition, see: Harmata, M.; Elomari, S.; Barnes, C. L. J. Am. Chem. Soc. 1996, 118, 2860.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 2860
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Harmata, M.1
Elomari, S.2
Barnes, C.L.3
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