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7898017 
Journal Article 
Catalytic enantioselective trapping of an alcoholic oxonium ylide with aldehydes: Rh(II)/Zr(IV)-co-catalyzed three-component reactions of aryl diazoacetates, benzyl alcohol, and aldehydes 
Zhang, X; Huang, H; Guo, X; Guan, X; Yang, L; Hu, W 
2008 
Yes 
Angewandte Chemie (International Edition)
ISSN: 1433-7851
EISSN: 1521-3773 
47 
35 
6647-6649 
English 
(Chemical Equation Presented) The right combination: A catalytic asymmetric multicomponent reaction has been developed in which two stereogenic carbon centers are constructed in a single step (see scheme; erythro/threo 90:10, up to 80% yield, 98% ee).This type of enantioselective three-component reaction generates α,β-dihydroxy acid derivatives in good yields and with excellent enantioselectivities. Bn =benzyl. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA. 
Asymmetric catalysis; Diazo compounds; Lewis acids; Multicomponent reaction; Ylides