메뉴 건너뛰기




Volumn 63, Issue 24, 1998, Pages 8736-8740

Diastereoselective aldol reactions of (Z)-N-[bis(methylthio)methylene]- α,β-didehydroglutamates

Author keywords

[No Author keywords available]

Indexed keywords

ALDEHYDE DERIVATIVE; ALPHA,BETA DIDEHYDROGLUTAMATE DERIVATIVE; GLUTAMIC ACID DERIVATIVE; UNCLASSIFIED DRUG;

EID: 0031792866     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo980634c     Document Type: Article
Times cited : (7)

References (53)
  • 30
    • 0000584420 scopus 로고
    • Morrison, J. D., Ed.; Academic Press Inc.: New York
    • (c) Heathcock, C. H. Asymmetric Synthesis; Morrison, J. D., Ed.; Academic Press Inc.: New York, 1984; Vol. 3, p 111.
    • (1984) Asymmetric Synthesis , vol.3 , pp. 111
    • Heathcock, C.H.1
  • 31
  • 35
    • 0002652021 scopus 로고
    • Morrison, J. D., Ed.; Academic Press, Inc.: New York
    • The stereochemical descriptors E and Z are used in this context as recommended by Evans. See: Evans, D. A. In Asymmetric Synthesis; Morrison, J. D., Ed.; Academic Press, Inc.: New York, 1984; Vol. 3, p 11.
    • (1984) Asymmetric Synthesis , vol.3 , pp. 11
    • Evans, D.A.1
  • 38
    • 0001026255 scopus 로고
    • The most stable chelation of Li and K enolates is usually given by the formation of five-or six-membered rings. However, enolate stabilization by seven-membered rings has also been reported. See for example: Garst, M. E.; Bonfiglio, J. N.; Grudoski, D. A.; Marks, J. J. Org. Chem. 1980, 45, 2307.
    • (1980) J. Org. Chem. , vol.45 , pp. 2307
    • Garst, M.E.1    Bonfiglio, J.N.2    Grudoski, D.A.3    Marks, J.4
  • 45
    • 0000796418 scopus 로고
    • Trost, B. M., Ed.; Pergamon Press: Oxford
    • It is well known that silicon enolates are not nucleophilic enough to undergo uncatalyzed addition to aldehydes. See: Chang, T.-H. In Comprehensive Organic Chemistry; Trost, B. M., Ed.; Pergamon Press: Oxford, 1991; Vol. 3, p 595.
    • (1991) Comprehensive Organic Chemistry , vol.3 , pp. 595
    • Chang, T.-H.1
  • 47
    • 0006130886 scopus 로고
    • and references cited therein
    • The trapping of delocalized ester enolates with silylating agents has been reported to be troublesome. See: (a) Corset, J.; Promet, F.; Lautié, M. F.; Ratovelomana, N.; Seyden-Penne, J.; Strzalko, T.; Roux-Schmitt, M. C. J. Am. Chem. Soc. 1993, 115, 1684. (b) Solladié-Cavallo, A.; Csáky, A. G. J. Org. Chem. 1994, 59, 2585 and references cited therein.
    • (1994) J. Org. Chem. , vol.59 , pp. 2585
    • Solladié-Cavallo, A.1    Csáky, A.G.2
  • 53
    • 15444357200 scopus 로고    scopus 로고
    • note
    • Full retroaldolization was observed in an independent essay upon treatment of 8a with 1 M TBAF solution in THF at room temperature in 1 h.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.