DIASTEREOSELECTIVE HETEROATOM-DIRECTED CONJUGATE ADDITION OF SILYLCUPRATE REAGENTS TO UNSATURATED CARBONYLS - A STEREOSELECTIVE ROUTE TO BETA-CARBONYL SILOXANES

被引:26
作者
HALE, MR [1 ]
HOVEYDA, AH [1 ]
机构
[1] BOSTON COLL,MERKERT CHEM CTR,DEPT CHEM,CHESTNUT HILL,MA 02167
关键词
D O I
10.1021/jo00095a007
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Directed conjugate addition of the silylcuprate reagent lithium bis[diphenyl(diethylamino)silyl]-cuprate ((Ph(2)(Et(2)N)Si)(2)CuLi) to unsaturated esters and ketones is reported. The stereochemical course of the reaction can be-controlled by the presence of an appropriately disposed internal Lewis basic functionality, affording the corresponding beta-hydroxysilyl carbonyls with good to excellent levels of diastereoselection (e.g., 3b --> 4b).
引用
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页码:4370 / 4374
页数:5
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