Preparation and photochemical behaviour of 2, 3, 4, 5, 6-pentafluorophenylazo-benzene and-4′-metoxybenzene

C Crogan, R Fields, AC Pratt, LMN Saleem…

Index: Crogan, Catherine; Fields, Roy; Pratt, Albert C.; Saleem, Layla M. N.; Dawson, Peter E. Journal of Fluorine Chemistry, 1983 , vol. 22, p. 61 - 72

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Citation Number: 2

Abstract

Abstract Pentafluoronitrosobenzene reacts readily with aniline and with p-methoxyaniline to give the corresponding 2, 3, 4, 5,-6-pentafluoroazobenzenes (1a and 1b) in good yield. Minor components detected by nmr, spectroscopy in the analytically pure products are shown by a combination of lanthanide-induced shift studies and photochemical reactions to be the cis-azo compounds these cis-azo compounds are unusually stable in the dark, with ...