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Volumn , Issue 8, 2002, Pages 846-847

Highly enantioselective intramolecular cyclopropanation of alkenyl diazo ketones using Ru(salen) as catalyst

Author keywords

[No Author keywords available]

Indexed keywords

KETONE DERIVATIVE; RUTHENIUM DERIVATIVE;

EID: 0037025493     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2002.846     Document Type: Article
Times cited : (19)

References (28)
  • 1
    • 0001078706 scopus 로고    scopus 로고
    • ed. by I. Ojima, Wiley-VCH, New York, Chap. 5
    • For a recent review, see: a) M. P. Doyle, "Catalytic Asymmetric Synthesis," ed. by I. Ojima, Wiley-VCH, New York (2000), Chap. 5, p 191.
    • (2000) Catalytic Asymmetric Synthesis , pp. 191
    • Doyle, M.P.1
  • 24
    • 0001695571 scopus 로고    scopus 로고
    • Although the enantioselectivity of the cyclopropanation giving [3.1.0]hexan-2-one has been reported to be 87% in Ref. 15a, it has been reported to be 74% in Ref. 15b
    • M. Barberis, J. Pérez-Prieto, K. Herbst, and P. Lahuerta, Organometallics, 21, 1667 (2002). Although the enantioselectivity of the cyclopropanation giving [3.1.0]hexan-2-one has been reported to be 87% in Ref. 15a, it has been reported to be 74% in Ref. 15b.
    • (2002) Organometallics , vol.21 , pp. 1667
    • Barberis, M.1    Pérez-Prieto, J.2    Herbst, K.3    Lahuerta, P.4
  • 28
    • 0005122413 scopus 로고    scopus 로고
    • note
    • 2. To this mixture was added a THF solution (1 ml) of (E)-1-diazo-6-phenyl-5-hexen-2-one (20 mg, 0.1 mmol) dropwise over a period of 12 h using a syringe pump under irradiation of incandescent light. The reaction mixture was stirred for another 4 h and concentrated in vacuo. The residue was chromatographed on silica gel using hexane and ethyl acetate (11 : 1) as eluent to yield bicyclic ketone (13.5 mg) in 78% yield. The enantiomeric excess of the product was determined as described in the footnote a of Table 1.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.