[4+2]TYPE CYCLOADDITION OF ALDIMINES BEARING ALPHA-HYDROGENS WITH 2-SILOXY-1,3-BUTADIENES CATALYZED BY TRIMETHYLSILYL TRIFLATE

被引:0
|
作者
AKIBA, KY [1 ]
MOTOSHIMA, T [1 ]
ISHIMARU, K [1 ]
YABUTA, K [1 ]
HIROTA, H [1 ]
YAMAMOTO, Y [1 ]
机构
[1] UNIV TOKYO,FAC SCI,DEPT CHEM,BUNKYO KU,TOKYO 113,JAPAN
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中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[4+2]Type cycloaddition of unactivated imines bearing alpha-hydrogens with 2-siloxy-1,3-butadienes has been performed efficiently by using trimethylsilyl triflate as a catalyst. The relative stereochemistry in the major diastereomers of the cycloaddducts has been assigned to be trans between C(2) and C(6) substituents.
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页码:657 / 659
页数:3
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