Cyclopropanation reactions catalysed by copper(II)-exchanged clays and zeolites. Influence of the catalyst on the selectivity

被引:27
作者
Fraile, JM [1 ]
Garcia, JI [1 ]
Mayoral, JA [1 ]
机构
[1] UNIV ZARAGOZA,CSIC,FAC CIENCIAS,INST CIENCIA MAT ARAGON,DEPT QUIM ORGAN,E-50009 ZARAGOZA,SPAIN
关键词
D O I
10.1039/cc9960001319
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The reaction of ethyl diazoacetate with styrene is catalysed by Cu-II-exchanged clays and zeolites; the trans/cis Selectivity strongly depends on the nature of the catalyst and when using Cu-II-K10 montmorillonite the normal selectivity in solution is reversed and the cis-cyclopropane is the major product. The tendency of this catalyst to increase the amount of the product less favoured in solution is confirmed in other reactions.
引用
收藏
页码:1319 / 1320
页数:2
相关论文
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