Highly enantioselective Michael Addition of α-Substituted Cyano Ketones to β,γ-unsaturated α-keto esters using bifunctional thiourea-tertiary amine catalysts: An easy access to chiral dihydropyrans

Advanced Synthesis and Catalysis

Volumn 351, Issue 17, 2009, Pages 2811-2816

  Zhao, Sheng Li ^a   Zheng, Chang Wu ^a   Wang, Hai Feng ^a   Zhao, Gang ^a  

^a SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY   (China)

Author keywords

Enantioseteroselectivity; Michael addition; Organocatalysts; Thioureas

Indexed keywords

EID: 72149122617     PISSN: 16154150     EISSN: 15213897     Source Type: Journal    
DOI: 10.1002/adsc.200900516     Document Type: Article

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54. 4, unit cell parameters: a = 13.6827(14), b = 10.3113(10), c = 16.6297(17) Å, space group P21/n] 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