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Volumn 11, Issue 22, 2009, Pages 5150-5153

Enantioselective epoxidation of nonconjugated cis-olefins by chiral dioxirane

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE; DIOXIRANE; EPOXIDE; KETONE;

EID: 70749110706     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol901724v     Document Type: Article
Times cited : (39)

References (62)
  • 22
    • 70749102821 scopus 로고
    • Ojima, I., Ed.; VCH; New York, Chapter 4.2.
    • For leading reviews on metal-catalyzed asymmetric epoxidation of unfunctionalized olefins, (a) Jacobsen, E. N. In Catalytic Asymmetric Synthesis; Ojima, I., Ed.; VCH; New York, 1993; Chapter 4.2.
    • (1993) Catalytic Asymmetric Synthesis
    • Jacobsen, E.N.1
  • 36
    • 70749109376 scopus 로고    scopus 로고
    • 94% ee has been obtained for 3,3-ethylenedioxycyclohexene with chiral (salen)Mn(III) catalyst; see refs 5a and 5b.
    • 94% ee has been obtained for 3,3-ethylenedioxycyclohexene with chiral (salen)Mn(III) catalyst; see refs 5a and 5b.
  • 37
    • 70749134221 scopus 로고    scopus 로고
    • For a recent report on Ti-catalyzed asymmetric epoxidation of nonactivated ci's-olefins (70-97% ee), see ref 5e.
    • For a recent report on Ti-catalyzed asymmetric epoxidation of nonactivated ci's-olefins (70-97% ee), see ref 5e.
  • 41
    • 0001780886 scopus 로고    scopus 로고
    • For leading references on asymmetric epoxidation of allylic and homoallylic alcohols, (a) Katsuki, T.; Martin, V. S. Org. React. 1996, 48, 1.
    • (1996) Org. React. , vol.48 , pp. 1
    • Katsuki, T.1    Martin, V.S.2
  • 45
    • 0000481415 scopus 로고
    • For entry 5, the epoxide did not completely cyclize under the reaction conditions; a mixture of epoxy acid and lactone were isolated from the crude reaction mixture. Refluxing this crude mixture overnight in cyclohexane gave the lactone product in overall 88% yield; see
    • For entry 5, the epoxide did not completely cyclize under the reaction conditions; a mixture of epoxy acid and lactone were isolated from the crude reaction mixture. Refluxing this crude mixture overnight in cyclohexane gave the lactone product in overall 88% yield; see; Ochiai, M.; Ukita, T.; Iwaki, S.; Nagao, Y.; Fujita, E. J. Org. Chem. 1989, 54, 4832.
    • (1989) J. Org. Chem. , vol.54 , pp. 4832
    • Ochiai, M.1    Ukita, T.2    Iwaki, S.3    Nagao, Y.4    Fujita, E.5
  • 62
    • 70749154565 scopus 로고    scopus 로고
    • It was found that ketone 2a was the most effective catalyst. No ee was obtained with ketone 2b, and 14% ee of the opposite enantiomer was obtained with ketone 2c for cis-1-methoxy-2-nonene using DME/DMM (3:1, v/v) as solvent
    • It was found that ketone 2a was the most effective catalyst. No ee was obtained with ketone 2b, and 14% ee of the opposite enantiomer was obtained with ketone 2c for cis-1-methoxy-2-nonene using DME/DMM (3:1, v/v) as solvent.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.