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Volumn 28, Issue 25, 1987, Pages 2841-2844

Double asymmetric aldol reactions using the boron enolates derived from 3-(3-ethyl)pentyl propanethiote and ethanethioate with (R,R)-2,5-dimethylborolanyl triflate

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EID: 0013372519     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(00)96223-3     Document Type: Article
Times cited : (34)

References (20)
  • 4
    • 33845557579 scopus 로고
    • for a representative procedure. Optical purity of ≥ 98% ee was determined at the acid stage by borane reduction-lactonization followed by NMR examination in the presence of chiral shift reagent.
    • (1981) J. Org. Chem. , vol.46 , pp. 4439
    • Four1    Guibe2
  • 13
    • 0001811453 scopus 로고
    • Highly enantioselective synthesis of anti(threo)-aldols by the asymmetric aldol reaction utilizing a chiral azaenolate.
    • (1985) Chemistry Letters , pp. 1217
    • Narasaka1    Miwa2
  • 18
    • 84918451290 scopus 로고    scopus 로고
    • 13C chemical shift for C-3 is assigned the 3,4-anti structure. These values reflect an apparent equatorial orientation for the thioester side chain in the 3,4-anti products and an axial orientation for this substituent in the 3,4-syn product. See the Table for complete spectral data on these compounds.
  • 19
    • 84918451289 scopus 로고    scopus 로고
    • 11


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.