A convenient and useful method of preparation of α-bromo enones from the corresponding enones using organic ammonium tribromide (OATB)

被引:33
作者
Bose, G [1 ]
Barua, PMB [1 ]
Chaudhuri, MK [1 ]
Kalita, D [1 ]
Khan, AT [1 ]
机构
[1] Indian Inst Technol, Dept Chem, Guwahati 781039, Assam, India
关键词
D O I
10.1246/cl.2001.290
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Various acyclic a-bromo enones 2 as well as cyclic alpha -bromo enones 4 can be prepared from the corresponding acyclic enones 1 and cyclic enones 3 respectively, in a one-pot procedure by employing organic ammonium tribromide, such as cetyltrimethylammonium tribromide (CetTMATB) or tetrabutylammonium tribromide (TBATB) in presence of K2CO3 in dichloromethane at 0 degreesC to room temperature under very mild conditions in good yields(2).
引用
收藏
页码:290 / 291
页数:2
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