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Volumn 2010, Issue 2, 2010, Pages 205-223

Asymmetric organocatalytic Michael addition of Meldrum's acid to nitroalkenes: Probing the mechanism of bifunctional thiourea organocatalysts

Author keywords

Bifunctional thiourea catalysts; Cinchona alkaloids; Meldrum's acid; Michael addition; Organocatalysis

Indexed keywords


EID: 77953447483     PISSN: 1551-7012     EISSN: 15517004     Source Type: Journal    
DOI: 10.3998/ark.5550190.0011.216     Document Type: Article
Times cited : (12)

References (30)
  • 3
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    • For first examples of thiourea catalysts in asymmetric synthesis, see
    • For first examples of thiourea catalysts in asymmetric synthesis, see Sigman, M. S.; Jacobsen, E. N. J. Am. Chem. Soc. 1998, 120, 4901.
    • (1998) J. Am. Chem. Soc. , vol.120 , pp. 4901
    • Sigman, M.S.1    Jacobsen, E.N.2
  • 4
    • 77953457821 scopus 로고    scopus 로고
    • For a review on asymmetric H-bond donor and thiourea catalysis, see
    • For a review on asymmetric H-bond donor and thiourea catalysis, see: Doyle, A. G.; Jacobsen, E. N. Chem. Rev. 2007, 107, 5716.
    • (2007) Chem. Rev. , vol.107 , pp. 5716
    • Doyle, A.G.1    Jacobsen, E.N.2
  • 5
    • 44349168328 scopus 로고    scopus 로고
    • For a review, see e.g.
    • For a review, see e.g.: Connon, S. J. Chem. Commun. 2008, 2499.
    • (2008) Chem. Commun. , pp. 2499
    • Connon, S.J.1
  • 14
    • 41149101973 scopus 로고    scopus 로고
    • For a recent review on the synthetic utility of Meldrum's acid, see:, and references cited therein
    • For a recent review on the synthetic utility of Meldrum's acid, see: Ivanov, A. S. Chem. Soc. Rev. 2008, 37, 789. and references cited therein.
    • (2008) Chem. Soc. Rev. , vol.37 , pp. 789
    • Ivanov, A.S.1
  • 20
    • 85069282331 scopus 로고    scopus 로고
    • survey contained all thiourea structures containing the-HNC S NH-moiety similar to the catalysts numbering over 700 published in the Cambridge Structural Database by September 2009. For an example of trans/trans-structure see CCDC-275454 Ref. 14, and for a trans/cis-structure, CCDC-685194 Ref. 7, respectively
    • The survey contained all thiourea structures containing the-HNC (S) NH-moiety similar to the catalysts (numbering over 700) published in the Cambridge Structural Database by September 2009. For an example of trans/trans-structure see CCDC-275454 (Ref. 14), and for a trans/cis-structure, CCDC-685194 (Ref. 7), respectively.
  • 21
    • 3042704685 scopus 로고    scopus 로고
    • For a study on the anomalous acidity, see
    • For a study on the anomalous acidity, see: Nakamura, S.; Hirao, H.; Ohwada, T. J. Org. Chem. 2004, 69, 4309.
    • (2004) J. Org. Chem. , vol.69 , pp. 4309
    • Nakamura, S.1    Hirao, H.2    Ohwada, T.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.