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The reactions of O, O- diethyl chlorophosphate with substituted chalcone hydrazones have been carried out in ethyl alcohol in presence of sodium acetate under inert atmosphere. The reaction products have been characterized on the basis of elemental analysis and spectral studies. The fungicidal activity of all these derivatives have been evaluatedin vitro againstColletotrichum falcatum, Fusariutn oxysporum and Curvularia pallescens...
Sixteen novel organophosphorus derivatives have been prepared by the reactions of O,O-diethyl chlorophosphate / thiophosphate with one important series of heterocyclic compounds i.e. thiohydantoin. The fungicidal activity of all these derivatives have been evaluated againstColletotrichum falcatum (causing ‘red rot’ disease in sugarcane),Fusarium oxysporum (associated with wilt disease) andCurvularia lunata...
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