A SIMPLE AND UNAMBIGUOUS SYNTHESIS OF ALPHA,ALPHA-DIHALOGENO AND ALPHA,ALPHA'-DIHALOGENO KETONES

被引:30
作者
BARLUENGA, J [1 ]
LLAVONA, L [1 ]
CONCELLON, JM [1 ]
YUS, M [1 ]
机构
[1] UNIV ALICANTE,FAC CIENCIAS,DEPT QUIM ORGAN,E-03690 ALACANT,SPAIN
来源
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1 | 1991年 / 02期
关键词
D O I
10.1039/p19910000297
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A convenient method for the unambiguous preparation of alpha,alpha'-dihalogeno ketones 3 from in situgenerated chloromethyllithium and alpha-chloro or alpha-bromo carboxylic acid esters 1 at -78-degrees-C, is described. The unambiguous preparation of alpha,alpha,-dihalogeno ketones 7 by using in situ-generated dihalogenomethyllithium and carboxylic acid esters 5 at -78-degrees-C is also reported.
引用
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页码:297 / 300
页数:4
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