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Volumn 45, Issue 9, 2006, Pages 1429-1432

Enantioselective synthesis of 2-aryl cyclopentanones by asymmetric epoxidation and epoxide rearrangement

Author keywords

Asymmetric synthesis; Chirality; Cyclopentanones; Epoxidation; Rearrangement

Indexed keywords

ASYMMETRIC SYNTHESIS; CHIRALITY; CYCLOPENTANONES; EPOXIDATION; REARRANGEMENT;

EID: 33745289112     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200501520     Document Type: Article
Times cited : (81)

References (61)
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    • For reviews on acid-promoted epoxide rearrangements, see: a) G. Magnusson, Org. Prep. Proced. Int. 1990, 22, 547;
    • (1990) Org. Prep. Proced. Int. , vol.22 , pp. 547
    • Magnusson, G.1
  • 18
  • 28
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    • For asymmetric epoxidations of unfunctionalized cyclopropylidene derivatives and subsequent rearrangement, see: a) M. Yoshida, M. A.-H. Ismail, H. Nemoto, M. Ihara, Heterocycles 1999, 50, 673;
    • (1999) Heterocycles , vol.50 , pp. 673
    • Yoshida, M.1    Ismail, M.A.-H.2    Nemoto, H.3    Ihara, M.4
  • 31
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    • For asymmetric dihydroxylations of cyclopropylidene derivatives and subsequent rearrangements, see: a) A. Krief, A. Ronvaux, A. Tuch, Bull. Soc. Chim. Belg. 1997, 106, 699;
    • (1997) Bull. Soc. Chim. Belg. , vol.106 , pp. 699
    • Krief, A.1    Ronvaux, A.2    Tuch, A.3
  • 38
    • 4143088133 scopus 로고    scopus 로고
    • and references therein
    • b) Y. Shi, Acc. Chem. Res. 2004, 37, 488, and references therein.
    • (2004) Acc. Chem. Res. , vol.37 , pp. 488
    • Shi, Y.1
  • 43
    • 33746248137 scopus 로고    scopus 로고
    • note
    • Some epoxides underwent rearrangement on silica gel, thus they were used directly without purification; these epoxides were clean as judged by analysis with NMR spectroscopy and GC analysis (see the Supporting Information).
  • 44
    • 33746234920 scopus 로고    scopus 로고
    • note
    • It was found that α-aryl cyclopentanones readily underwent racemization on silica gel; the ketone products were not purified by column chromatography on silica gel and were clean as judged by NMR spectroscopy.
  • 61
    • 33746204464 scopus 로고    scopus 로고
    • note
    • Experimental procedures for the asymmetric epoxidation and epoxide rearrangement, the characterization of the epoxides and cyclopentanones, the determination of the ee values of the epoxides and cyclopentanones, and the VCD spectra are given in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.