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Volumn 129, Issue 3, 2007, Pages 645-657

Highly selective Diels-Alder reactions of directly connected enyne dienophiles

Author keywords

[No Author keywords available]

Indexed keywords

ACETYLENE; ADDITION REACTIONS; AROMATIZATION; ESTERS; MOLECULAR STRUCTURE; REACTION KINETICS;

EID: 33846433155     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja065762u     Document Type: Article
Times cited : (46)

References (64)
  • 13
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    • Trost, B. M, Fleming, I, Paquette, L. A, Eds, Pergamon Press: Oxford, U.K
    • (a) Oppolzer, W. In Comprehensive Organic Synthesis; Trost, B. M., Fleming, I., Paquette, L. A., Eds.; Pergamon Press: Oxford, U.K., 1991; Vol. 5, p 315.
    • (1991) Comprehensive Organic Synthesis , vol.5 , pp. 315
    • Oppolzer, W.1
  • 24
    • 0004294109 scopus 로고
    • Viehe, H. G, Ed, Marcel Dekker: New York
    • (a) Fuks, R.; Viehe, H. G. In Chemistry of Acetylenes: Viehe, H. G., Ed.; Marcel Dekker: New York, 1969; p 478.
    • (1969) Chemistry of Acetylenes , pp. 478
    • Fuks, R.1    Viehe, H.G.2
  • 48
    • 33845377563 scopus 로고    scopus 로고
    • Negishi, E.-I.; Van, Horn, D. E.; Yoshida, T. J. Am. Chem. Soc. 1985, 107, 6639.
    • (a) Negishi, E.-I.; Van, Horn, D. E.; Yoshida, T. J. Am. Chem. Soc. 1985, 107, 6639.
  • 60
    • 33846443067 scopus 로고    scopus 로고
    • Gaussian, Inc, Wallingford, CT
    • Frisch, M. J., et al. Gaussian 03, revision C.02; Gaussian, Inc.: Wallingford, CT, 2004.
    • (2004) Gaussian 03, revision , Issue.C.02
    • Frisch, M.J.1
  • 61
    • 33846428685 scopus 로고    scopus 로고
    • IRC calculations performed on the transition state for the formation of the vinyl ester-controlled adduct uncovered the zwitterionic intermediate (S2, 0) shown below, corresponding to the adduct formed from nucleophilic addition of the diene. The energy of this intermediate is 12.5 kcal/mol, which is 1.5 kcal/mol lower than the transition state. However, the ring-closing transition structure proceeding from this intermediate could not be found, most likely because of the near-zero activation barrier for conversion of this zwitterions to product, Diagram presented
    • 2 = 0) shown below, corresponding to the adduct formed from nucleophilic addition of the diene. The energy of this intermediate is 12.5 kcal/mol, which is 1.5 kcal/mol lower than the transition state. However, the ring-closing transition structure proceeding from this intermediate could not be found, most likely because of the near-zero activation barrier for conversion of this zwitterions to product. (Diagram presented)
  • 62
    • 0029147109 scopus 로고    scopus 로고
    • Domingo, L. R.; Jones, R. A.; Picher, M. T.; Sepúlveda-Arque. s, J. Tetrahedron 1995, 51, 8739.
    • (a) Domingo, L. R.; Jones, R. A.; Picher, M. T.; Sepúlveda-Arque. s, J. Tetrahedron 1995, 51, 8739.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.