메뉴 건너뛰기




Volumn 49, Issue 25, 2010, Pages 4290-4293

Highly enantioselective conjugate addition of thioglycolate to chalcones catalyzed by lanthanum: Low catalyst loading and remarkable chiral amplification

Author keywords

Asymmetric synthesis; Chalcones; Lanthanum; Michael addition

Indexed keywords

ASYMMETRIC AMPLIFICATION; ASYMMETRIC SYNTHESIS; CATALYST LOADINGS; CHALCONES; CHIRAL AMPLIFICATION; ENANTIOSELECTIVE CONJUGATE ADDITION; HIGH YIELD; MICHAEL ADDITIONS;

EID: 77953489540     PISSN: 14337851     EISSN: 15213773     Source Type: Journal    
DOI: 10.1002/anie.201000105     Document Type: Article
Times cited : (90)

References (70)
  • 8
    • 34247120129 scopus 로고    scopus 로고
    • For reviews on asymmetric Michael additions of thiols, see : a
    • For reviews on asymmetric Michael additions of thiols, see : a) D. Enders, K. Lüttgen, A. A. Narine, Synthesis 2007, 959;
    • (2007) Synthesis , pp. 959
    • Enders, D.1    Lüttgen, K.2    Narine, A.A.3
  • 9
    • 0034251445 scopus 로고    scopus 로고
    • For organocatalytic enantioselective sulfa-Michael additions
    • b) T. Kondo, T. Mitsudo, Chem. Rev. 2000, 100, 3205. For organocatalytic enantioselective sulfa-Michael additions,
    • (2000) Chem. Rev. , vol.100 , pp. 3205
    • Kondo, T.1    Mitsudo, T.2
  • 18
    • 0028272213 scopus 로고
    • For metal-catalyzed enantioselective sulfa-Michael additions, see: a
    • For metal-catalyzed enantioselective sulfa-Michael additions, see: a) Q. L. Zhou, A. Pfaltz, Tetrahedron 1994, 50, 4467;
    • (1994) Tetrahedron , vol.50 , pp. 4467
    • Zhou, Q.L.1    Pfaltz, A.2
  • 41
    • 33846104288 scopus 로고    scopus 로고
    • For reviews on chiral N-oxides in asymmetric catalysis, see: a
    • For reviews on chiral N-oxides in asymmetric catalysis, see: a) A. V. Malkov, P. Kočovský, Eur. J. Org. Chem. 2007, 29;
    • (2007) Eur. J. Org. Chem. , pp. 29
    • Malkov, A.V.1    Kočovský, P.2
  • 58
    • 77953482980 scopus 로고    scopus 로고
    • 3
    • 3.
  • 59
    • 77953514665 scopus 로고    scopus 로고
    • CCDC 759697 (3a) contains the supplementary crystallographic data for this paper These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via
    • CCDC 759697 (3a) contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre via www. ccdc.cam.ac.uk/data-request/cif.
  • 60
    • 77953484049 scopus 로고    scopus 로고
    • Several other kinds of enones were also used, although most of the reactions proceeded smoothly the sulfa-Michael products were afforded with poor ee values (see the Supporting Information)
    • Several other kinds of enones were also used, although most of the reactions proceeded smoothly, the sulfa-Michael products were afforded with poor ee values (see the Supporting Information).
  • 61
    • 77953490850 scopus 로고    scopus 로고
    • +
    • +.
  • 69
    • 34447102708 scopus 로고    scopus 로고
    • 2Cl at 50 °C As a result, the concentration of the catalyst system was decreased, leading to a lower yield
    • 2Cl at 50 °C As a result, the concentration of the catalyst system was decreased, leading to a lower yield. P. J. Walsh, H. M. Li, C. A. Parrodi, Chem. Rev. 2007, 107, 2503.
    • (2007) Chem. Rev. , vol.107 , pp. 2503
    • Walsh, P.J.1    Li, H.M.2    Parrodi, C.A.3
  • 70
    • 77953497552 scopus 로고    scopus 로고
    • A proposed working model is described in the Supporting Information
    • A proposed working model is described in the Supporting Information.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.