1,3-DIPOLAR CYCLOADDITION BETWEEN ETHYL TRIFLUOROACETOACETATE AND N-(BENZYLIDENE)METHYLAMINE N-OXIDE

被引:15
作者
BEGUE, JP
BONNETDELPON, D
LEQUEUX, T
机构
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1991年 / 11期
关键词
D O I
10.1039/p19910002888
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The 1,3-dipolar cycloaddition between ethyl trifluoroacetoacetate and N-(benzylidene)methylamine N-oxide, performed in boiling toluene, leads regio- and stereo-selectively to an isoxazolidine, while the corresponding ethyl acetoacetate is found to be unreactive under the same conditions. On the other hand, alpha-trifluoromethylstyrene behaves as alpha-methylstyrene and affords two diastereoisomeric trifluoromethyl-substituted cycloadducts.
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页码:2888 / 2889
页数:2
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