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Volumn 126, Issue 2, 2004, Pages 613-627

Total Synthesis of Hamigerans and Analogues Thereof. Photochemical Generation and Diels-Alder Trapping of Hydroxy-o-quinodimethanes

Author keywords

[No Author keywords available]

Indexed keywords

CARBOXYLATION; OXIDATION; PHOTOCHEMICAL REACTIONS; SYNTHESIS (CHEMICAL);

EID: 0347087231     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja030498f     Document Type: Article
Times cited : (167)

References (52)
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    • note
    • We gratefully acknowledge Professor R. Cambie for communications pertaining to the hamigerans.
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    • Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3675-3678; Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3679-3683. For a recent elegant total synthesis of hamigeran B, see: Clive, D. L. J.; Wang, J. Angew Chem., Int. Ed. 2003, 42, 3406-3409.
    • (2001) Angew. Chem., Int. Ed. , vol.40 , pp. 3675-3678
    • Nicolaou, K.C.1    Gray, D.2    Tae, J.3
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    • Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3675-3678; Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3679-3683. For a recent elegant total synthesis of hamigeran B, see: Clive, D. L. J.; Wang, J. Angew Chem., Int. Ed. 2003, 42, 3406-3409.
    • (2001) Angew. Chem., Int. Ed. , vol.40 , pp. 3679-3683
    • Nicolaou, K.C.1    Gray, D.2    Tae, J.3
  • 15
    • 0042530467 scopus 로고    scopus 로고
    • Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3675-3678; Nicolaou, K. C.; Gray, D.; Tae, J. Angew Chem., Int. Ed. 2001, 40, 3679-3683. For a recent elegant total synthesis of hamigeran B, see: Clive, D. L. J.; Wang, J. Angew Chem., Int. Ed. 2003, 42, 3406-3409.
    • (2003) Angew. Chem., Int. Ed. , vol.42 , pp. 3406-3409
    • Clive, D.L.J.1    Wang, J.2
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    • and references therein
    • For an overview of this photoenolization process, see: (a) Sammes, P. Tetrahedron 1976, 32, 405 and references therein.
    • (1976) Tetrahedron , vol.32 , pp. 405
    • Sammes, P.1
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    • Rappoport, Z., Ed.; Wiley: Chichester, U.K.; and references therein
    • (b) Weedon, A. C. In The Chemistry of Enols; Rappoport, Z., Ed.; Wiley: Chichester, U.K., 1990; pp 591-638 and references therein.
    • (1990) The Chemistry of Enols , pp. 591-638
    • Weedon, A.C.1
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    • and references therein
    • (c) Charlton, J.; Alauddin, M. Tetrahedron 1987, 43, 2873-2889 and references therein.
    • (1987) Tetrahedron , vol.43 , pp. 2873-2889
    • Charlton, J.1    Alauddin, M.2
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    • For early examples of the photoenolization/Diels-Alder reactions with benzylic ketones, see: (a) Haag, R.; Wirz, J.; Wagner, P. Helv. Chim. Acta 1977, 60, 2595-2607.
    • (1977) Helv. Chim. Acta , vol.60 , pp. 2595-2607
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    • Ph.D. Thesis, University of London
    • (d) Wallace, T. W. Ph.D. Thesis, University of London, 1974.
    • (1974)
    • Wallace, T.W.1
  • 33
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    • note
    • We suspect that a trace contaminant in the commercial formulation of methyl crotonate might be catalyzing rapid decomposition of the dienophile upon photochemical irradiation in this reaction.
  • 37
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    • note
    • We gratefully acknowledge Professor D. Buisson for his generous and timely gift of several fungal and yeast strains used in these experiments.
  • 38
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    • For a report of an intramolecular photocyclization of a benzaldehyde moiety with a heteroatom tether, see: Oppolzer, W.; Keller, K. Angew. Chem., Int. Ed. Engl. 1972, 11, 728-730.
    • (1972) Angew. Chem., Int. Ed. Engl. , vol.11 , pp. 728-730
    • Oppolzer, W.1    Keller, K.2
  • 50
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    • For recent computational studies on the Norrish type I reaction and further references, see: (a) Diau, E.; Kotting, C.; Zewail, A. ChemPhysChem 2001, 2, 273-293.
    • (2001) ChemPhysChem , vol.2 , pp. 273-293
    • Diau, E.1    Kotting, C.2    Zewail, A.3
  • 52
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    • Lipkowitz, K., Boyd, D., Eds.; VCH: New York
    • The hamigeran diastereoisomeric pairs were modeled with Accelrys Insight II, 1998. Molecular dynamics calculations were performed with Accelrys Discover v. 2.98 on a cluster of SGI Origin servers running Irix 6.5. The relative energies of the diastereoisomeric were computed with the class II pairwise force field cff91 v. 2.0 (see: Dinur, U.; Hagler A. In Reviews in Computational Chemistry; Lipkowitz, K., Boyd, D., Eds.; VCH: New York, 1991; Vol. 2, p 527), with library parameters for bond, valence, torsion, and out-of-plane terms. A total of 1000 structures were generated within 300 ps at 800 K. They were annealed to 300 K in 5 ps. The structures were further minimized to convergence using a conjugate gradient algorithm, and the lowest energy structure cluster was selected as the preferred structure. We thank Dr. C. N. C. Boddy for performing these calculations.
    • (1991) Reviews in Computational Chemistry , vol.2 , pp. 527
    • Dinur, U.1    Hagler, A.2


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