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Volumn , Issue 43, 2009, Pages 6652-6654

Dynamic kinetic resolution in the asymmetric synthesis of atropisomeric biaryl[4] and [5]helicene quinones

Author keywords

[No Author keywords available]

Indexed keywords

ALKADIENE; BENZOQUINONE; QUINONE DERIVATIVE;

EID: 70350665975     PISSN: 13597345     EISSN: None     Source Type: Journal    
DOI: 10.1039/b907653k     Document Type: Article
Times cited : (25)

References (49)
  • 29
    • 53549135785 scopus 로고    scopus 로고
    • There are several examples in the literature of helicenes bearing phenyl groups with no substituents at the ortho positions:
    • J. Ichikawa M. Yokota T. Kudo S. Umezaki Angew. Chem., Int. Ed. 2008 47 4870 4873
    • (2008) Angew. Chem., Int. Ed. , vol.47 , pp. 4870-4873
    • Ichikawa, J.1    Yokota, M.2    Kudo, T.3    Umezaki, S.4
  • 46
    • 0026682815 scopus 로고
    • Enantiopure 5-methyl-substituted sulfinyl quinone (SS)- 2 was used, instead of the unsubstituted one, to avoid the undesired evolution observed for the latter in the reaction with this type of diene through the non-sulfinylated C5-C6 double bond
    • M. C. Carreño J. L. García Ruano A. Urbano Synthesis 1992 651 653
    • (1992) Synthesis , pp. 651-653
    • Carreño, M.C.1    García Ruano, J.L.2    Urbano, A.3
  • 47
    • 84890766709 scopus 로고    scopus 로고
    • Wiley-VCH, Weinheim, The optical purities were evaluated by chiral HPLC (see ESI). The racemic compounds necessary for such evaluations were obtained from the corresponding racemic sulfinyl quinones 12a The (P) absolute configuration of all helical quinones synthesized was initially assigned on the basis of the positive sign of their optical rotations and later confirmed for several derivatives by applying the methodology described by Katz
    • L. F. Tietze, G. Brasche and K. M. Gericke, Domino Reactions in Organic Synthesis, Wiley-VCH, Weinheim, 2006
    • (2006) Domino Reactions in Organic Synthesis
    • Tietze, L.F.1    Brasche, G.2    Gericke, K.M.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.