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Volumn 26, Issue 12, 1987, Pages 1283-1285

Enantioselective Protonation of Carbanions with Chiral Proton Sources

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[No Author keywords available]

Indexed keywords


EID: 84985532528     PISSN: 05700833     EISSN: 15213773     Source Type: Journal    
DOI: 10.1002/anie.198712831     Document Type: Article
Times cited : (76)

References (37)
  • 2
    • 84985619546 scopus 로고
    • Doppelte Stereodifferenzierung und eine neue Strategie zur Stereokontrolle in der Organischen Synthese
    • (1985) Angewandte Chemie , vol.97 , pp. 1
    • Masamune, S.1
  • 18
    • 84985631406 scopus 로고    scopus 로고
    • Enantioselective reactions of Li enolates with chiral. nonprotic electrophiles in the presence of chiral secondary amines (D. Seebach. Proc. Welch Foundation. Houston 1984, p. 93) are not completely comparable because of the special role of the proton.
  • 20
    • 84985501224 scopus 로고    scopus 로고
    • 4), m.p.‐71°C (T. Polonski, Tetrahedron 39 1983) 3131. The enantiomeric purity was checked by gas chromatographic separation of the enantiomers. We thank Dr. K. Güniher, Degussa AG, for performing these analyses.
  • 21
    • 84985501229 scopus 로고    scopus 로고
    • 2O and the reaction mixture was allowed to stir for 30 min at this temperature. The protonation, workup, and analysis were carried out as described in [8a]. The reported enantiomeric excesses are average values from two or three independent experiments (reproducibility ± 1.5%).
  • 22
    • 84985574877 scopus 로고    scopus 로고
    • We thank BASF AG, Ludwigshafen, for a sample of (R) ‐ 12.
  • 24
    • 84985495078 scopus 로고    scopus 로고
    • We thank Prof. H. Kuntz, Mainz, for samples of this derivative.
  • 30
    • 84985621265 scopus 로고    scopus 로고
    • Diplomarbeit, Universität Würzburg 1982.
    • Ehrler, R.1


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.