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Volumn 52, Issue 17, 2011, Pages 2155-2158

Concise approach to the core of englerin a via an organocatalytic [4+3] cycloaddition reaction

Author keywords

Englerin A; Intramolecular Heck reaction; Organocatalytic 4+3 cycloaddition

Indexed keywords

ARTICLE; CYCLOADDITION; ENANTIOSELECTIVITY;

EID: 79953207640     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2010.11.087     Document Type: Article
Times cited : (46)

References (32)
  • 14
  • 19
    • 0003075009 scopus 로고    scopus 로고
    • For reviews on application in natural product synthesis
    • For reviews on application in natural product synthesis: (k) Chiu, P.; Lautens, M. Top. Curr. Chem. 1997, 190, 1-85;
    • (1997) Top. Curr. Chem. , vol.190 , pp. 1-85
    • Chiu, P.1    Lautens, M.2
  • 25
    • 79953174336 scopus 로고    scopus 로고
    • note
    • 1H NMR spectrum, the α-methylene protons of the formyl group exhibit significant difference between their chemical shifts, with Δδ being 0.50 ppm for ent-6 and 0.53 ppm for 10. For exo products, the corresponding Δδ values are below 0.20 ppm (mostly below 0.10 ppm). See Ref. 8 and Ref. 10.
  • 29
    • 0034824177 scopus 로고    scopus 로고
    • For a possible application in phorbol synthesis, see
    • For a possible application in phorbol synthesis, see: Lee, K.; Cha, J. K. J. Am. Chem. Soc. 2001, 123, 5590-5591.
    • (2001) J. Am. Chem. Soc. , vol.123 , pp. 5590-5591
    • Lee, K.1    Cha, J.K.2
  • 30
    • 79953168856 scopus 로고    scopus 로고
    • note
    • Similar situation was also encountered in Ref. 5.
  • 31
    • 79953207749 scopus 로고    scopus 로고
    • note
    • A structurally closely related compound (7 in Ref. 5) has been utilized for the formal synthesis of englerin A. See Ref. 5.
  • 32
    • 79953175676 scopus 로고    scopus 로고
    • note
    • The mixture of 10a/10b underwent the identical protocol depicted in Scheme 3 to deliver regioisomers in the same yield.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.