Organocatalytic Asymmetric Branching Sequence of MBH Carbonates： Access to Chiral Benzofuran-2（3H）-one Derivatives with Three Stereocenters  

作　　者：竺传乐 饧丽军 聂晶 郑艳 马军安 

机构地区：[1]Department of Chemistry,Tianjin University,Tianjin 300072,China

出　　处：《Chinese Journal of Chemistry》2012年第11期2693-2702,共10页中国化学（英文版）

基　　金：Acknowledgement This work was supported financially by the National Natural Science Foundation of China （Nos. 20972110 and 20902067）.

摘　　要：An organocatalytic asymmetric branching sequence was realized in the presence of 10 mol% of （DHQD）2AQN, affording the sequential products with three stereocentres, including two quaternary carbon centres, in 47%-79% yields with 85%-99% ee.An organocatalytic asymmetric branching sequence was realized in the presence of 10 mol% of （DHQD）2AQN, affording the sequential products with three stereocentres, including two quaternary carbon centres, in 47%-79% yields with 85%-99% ee.

关 键 词：ORGANOCATALYSIS Morita-Baylis-Hillman （MBH） carbonates chloroaldoximes branching sequences enantioselectivity 

分 类 号：O151.21[理学—数学] O623.12[理学—基础数学]