Preparation and fungicidal properties of (phenylthio)-acetohydroxamic acids and related compounds

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Abstract
1-Chloro-4,5-dimethoxy-2-nitrobenzene and 1-bromo-2,5-dimethoxy-4-nitrobenzene condensed readily with thioglycollic acid in alkaline medium to give the corresponding sulphides. (4,5-Dimethoxy-2-nitrophenylthio)- and (2,5-dimethoxy-4-nitrophenylthio)acetic acid, as well as the corresponding amides and hydroxamic acids, have been prepared and tested for their fungicidal properties against Aspergillus niger and Rhizoctonia solani. The (phenylthio)acetohydroxamic acids were found to be more fungicidal than the corresponding carboxylic acids against the phytopathogenic fungus Rhizoctonia solani.