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DOI: 10.1039/A805742G (Paper) Reference Section for: J. Chem. Res. (S), 1998, 778-779

Photohydrolysis of a Halophenol in Sunlight: Critical Influence of Substitution Pattern

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Jill Clarke, Roger R. Hill and David R. Roberts

Abstract

While the herbicide bromoxynil (3,5-dibromo-4-hydroxybenzonitrile) is comparatively stable in sunlight, its positional isomer, 3,5-dibromo-2-hydroxybenzonitrile, degrades rapidly via a highly selective photoaromatic substitution reaction, illustrating a critical influence of substitution pattern on electronic absorption properties and photochemical behaviour.

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