Asymmetric conjugate addition to alkylidene malonates

被引:64
作者
Alexakis, A [1 ]
Benhaim, C [1 ]
机构
[1] Univ Geneva, Dept Organ Chem, CH-1211 Geneva 4, Switzerland
关键词
D O I
10.1016/S0957-4166(01)00196-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Dialkylzinc and trialkylaluminium reagents undergo conjugate addition to alkylidene malonates with 0.5% copper triflate as catalyst. The reaction could be made enantioselective by completing the reaction in the presence of 0.5-1.0 mol% of chiral phosphorus ligand. Enantiomeric excesses (e.e.s) of up to 73% could br attained with a ligand prepared from TADDOL and 2-naphthylcyclohexanol. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1151 / 1157
页数:7
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