Synthesis of 2-chloro-and 2, 5-dichlorobenzophenones

AG Pinkus, FSY Ma, LYC Meng…

文献索引：Pinkus; Ma; Meng; Chang Organic Preparations and Procedures International, 2004 , vol. 36, # 2 p. 192 - 194

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被引用次数: 4

摘要

2-Chloro-and 2, 5-dichlorobenzophenones (3b and 3a) were required in connection with another project. The yields of the reported syntheses of 2, 5-dichlorobenzophenone (3a) from the Friedel-Crafts reaction of p-dichlorobenzene with benzoyl chloride are either not reported'or low (20% 2 and 8% 3) and these preparations involve long reaction times and vigorous conditions. In our own preliminary work, only a 17% yield of 3a was obtained via ...