Rhodium-catalyzed enantioselective conjugate silyl transfer: 1,4-addition of silyl boronic esters to cyclic enones and lactones

被引:104
作者
Walter, Christian [1 ]
Auer, Gertrud [1 ]
Oestreich, Martin [1 ]
机构
[1] Univ Freiburg, Inst Organ Chem & Biochem, D-79104 Freiburg, Germany
关键词
asymmetric catalysis; boron; homogeneous catalysis; rhodium; silicon;
D O I
10.1002/anie.200601747
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Missing linkage: A chiral cationic rhodium complex catalyzes the enantioselective conjugate addition of silyl anion equivalents to cyclic α,β-unsaturated ketones (X = CH2) and esters (X = O; see scheme). This unprecedented catalytic process enables the asymmetric formation of a carbon-silicon bond, thus providing a facile access to α-chiral organosilicon compounds. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
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页码:5675 / 5677
页数:3
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