Fluoroaromatic derivatives. CI. Transformations of polyfluoroazoxybenzenes in strong acids. Wallach rearrangement of polyfluoroazoxybenzenes

GG Furin, OI Andreevskaya, AI Rezvukhin…

Index: Furin,G.G.; Andreevskaya,O.I. Journal of Fluorine Chemistry, 1985 , vol. 28, p. 1

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Citation Number: 9

Abstract

Abstract The present study discusses the behaviour of fluorinated azoxybenzenes in strong acids. 2, 2′, 3, 3′, 5, 5′, 6, 6′-Octafluoro-azoxybenzene I reacted with chlorosulphonic acid giving the Wallach rearrangement product, the chlorosulphonate ester of 4-hydroxy-2, 2′, 3, 3′, 5, 5′, 6, 6′-octafluoroazobenzene. In HF, H 2 SO 4 and HSO 3 F compound I was stable, whereas in SbF 5-HSO 3 F (1: 1) at 20 C, it gave quantitatively the reduction ...