Bulletin of the Chemical Society of Japan

Reaction of haloazoxybenzenes with sulfuric acid

I Shimao, K Fujimori, S Oae

Index: Shimao, Ichiro; Fujimori, Ken; Oae, Shigeru Bulletin of the Chemical Society of Japan, 1982 , vol. 55, # 2 p. 546 - 550

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Citation Number: 25

Abstract

Treatment of 4, 4′-dihaloazoxybenzenes with sulfuric acid afforded 4, 4′- dihaloazobenzenes (6) as the major product and 5-halo-2-(p-halophenylazo) phenols, the Wallach rearrangement products as minor products, besides 2-halo-5-(p-halophenylazo) phenols, 2-halo-4-(p-halophenylazo) phenols, and 4-(p-halophenylazo) phenols as abnormal rearrangement products. The reaction of fluoro compound gave the azophenols ...