Abstract
The phosphorylated and thiophosphorylated benzothiazole derivatives have been synthesized by the reaction of phosphorus oxychloride/phosphorus thiochloride with 2-(2′-aminophenyl)benzothiazole in 1:1, 2:1, 3:1, and 1:2 molar ratios in presence of triethylamine. Plausible structures have been proposed on the basis of elemental analysis IR, 1H NMR, 31P NMR, and mass spectral studies. The fungicidal activity of these derivatives have been evaluated against pathogenic fungi Aspergillus niger and Fusarium oxysporium. The fungicidal data reveals that these compounds are more fungitoxic than the parent 2-(2′-aminophenyl)benzothiazole compound.
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