Organolanthanide catalyzed hydrogenation and hydrosilylation of substituted methylenecycloalkanes

被引:42
作者
Molander, GA
Winterfeld, J
机构
[1] Dept. of Chemistry and Biochemistry, University of Colorado, Boulder
关键词
samarium; ytterbium; silicon; lanthanides; hydrogenation; hydrosilylation;
D O I
10.1016/S0022-328X(96)06276-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
This communication presents a study of the scope of the catalytic hydrogenation and hydrosilylation of chiral exomethylene-substituted cyclopentanes and cyclohexanes utilizing the organolanthanide precatalysts Cp(2)*LnCH(SiMe(3))(2)(Cp* = C(5)Me(5); Ln = Sm, Yb). Both reaction types are sterically driven and lead to the cis-diastereomer as the major product. Additionally, the hydrosilylation is regiospecific, the silane being placed exclusively at the terminal position of the double bond.
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页码:275 / 279
页数:5
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