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Volumn 133, Issue 2, 2011, Pages 170-171

Enantioenriched synthesis of cyclopropenes with a quaternary stereocenter, versatile building blocks

Author keywords

[No Author keywords available]

Indexed keywords

BUILDING BLOCKES; CARBENOIDS; CYCLOPROPENES; DIAZO COMPOUNDS; DIAZOACETAMIDE; ENANTIOSELECTIVE; FUNCTIONALIZED; QUATERNARY CARBON; QUATERNARY STEREOCENTERS;

EID: 78651386359     PISSN: 00027863     EISSN: 15205126     Source Type: Journal    
DOI: 10.1021/ja1089217     Document Type: Article
Times cited : (97)

References (36)
  • 27
    • 84875626234 scopus 로고    scopus 로고
    • See the Supporting Information (Table S-1).
    • See the Supporting Information (Table S-1).
  • 28
    • 84875612852 scopus 로고    scopus 로고
    • Most reactions in Tables 1 and 2 had a similar level of enantioselectivity either in DCM or in toluene. For example, 85% ee and 96% ee were obtained in the reactions of phenylacetylene with α-phenyl-α- diazophosphonate and 1-phenyl-2,2,2-trifluoromethyldiazoethane, respectively (cf. Table 2, entries 9 and 13).
    • Most reactions in Tables 1 and 2 had a similar level of enantioselectivity either in DCM or in toluene. For example, 85% ee and 96% ee were obtained in the reactions of phenylacetylene with α-phenyl-α- diazophosphonate and 1-phenyl-2,2,2-trifluoromethyldiazoethane, respectively (cf. Table 2, entries 9 and 13).
  • 29
    • 84875586039 scopus 로고    scopus 로고
    • Asymmetric cyclopropanation with α-cyano-α-diazoacetamides has been reported
    • Asymmetric cyclopropanation with α-cyano-α-diazoacetamides has been reported
  • 32
    • 84875596341 scopus 로고    scopus 로고
    • See the Supporting Information (Table S-2).
    • See the Supporting Information (Table S-2).
  • 33
    • 84875586135 scopus 로고    scopus 로고
    • The cyclopropenation of 1-decyne with benzyl diazoacetate using 5 as a catalyst proceeds with 80% ee.
    • The cyclopropenation of 1-decyne with benzyl diazoacetate using 5 as a catalyst proceeds with 80% ee.
  • 34
    • 33747216251 scopus 로고    scopus 로고
    • For the cyclopropanation reactions using diazo compounds bearing a phosphonate or trifluoromethyl group, see Reddy, R. P., Lee, G. H., and Davies, H. M. L. Org. Lett. 2006, 8, 3437
    • (2006) Org. Lett. , vol.8 , pp. 3437
    • Reddy, R.P.1    Lee, G.H.2    Davies, H.M.L.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.