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Volumn 24, Issue 45, 1983, Pages 4997-5000

Asymmetric pinacol-type rearrangement of α-hydroxy methanesulfonates promoted by triethylaluminum - preparation of optically pure α-aryl and α-vinyl ketones -

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EID: 0000826788     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(01)99831-4     Document Type: Article
Times cited : (45)

References (18)
  • 4
    • 84918399251 scopus 로고    scopus 로고
    • 3 afforded 3a (35 %) along with 2-methoxy-1,1-diphenyl-1-propanol (38%).
  • 8
    • 84918399250 scopus 로고    scopus 로고
    • Purification on silica-gel plate caused a partial racemization (≈10 %).
  • 11
    • 84918399249 scopus 로고    scopus 로고
    • 4.
  • 12
    • 84918399248 scopus 로고    scopus 로고
    • 2 - group could not be detected, which showed that the migration of aryl, vinyl, or 2-furyl group took place exclusively.
  • 13
    • 0001393299 scopus 로고
    • Recently, Wender . reported a similar approach, reductive re-arrangement of alkynyl halohydrins. However, the stereochemical feature of the reaction has not been clarified:
    • (1983) J. Am. Chem. Soc. , vol.105 , pp. 3348
    • Wender1    Holt2    Sieburth3
  • 15
    • 84918399247 scopus 로고    scopus 로고
    • 1H NMR, IR, and MS properties.
  • 18
    • 84918399246 scopus 로고    scopus 로고
    • Enantiomeric excess of 3f was estimated as follows: 3f was first converted to the mono-silylated alcohols 6f, both in chiral and racemic forms, whose (+)-MTPA esters were subjected to HPLC analysis.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.