324. Grignard reactions with phthalic anhydrides

C Weizmann, E Bergmann, F Bergmann

Index: Weizmann; Bergmann; Bergmann Journal of the Chemical Society, 1935 , p. 1367,1368, 1369

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Citation Number: 4

Abstract

Apparently the course of the ring closure depends on the experimental conditions. The cyclisation of 2-a-naphthoylbenzoic acid with concentrated sulphuric acid leads to 1: 2- benzanthraquinone (Weizmann and Pickles, loc. cit.), but use of a mixture of aluminium and