DIPHENYLCYANAMIDE DERIVATIVES

Abstract
Diphenylcyanamide is conveniently prepared by the action of cyanogen chloride on diphenylamine. When it is hydrolyzed in the presence of hydroxylated solvents, of the type ROH, stable isoureas are formed. These are readily hydrolyzed in aqueous alkaline medium to the corresponding urea derivative. Chlorination of diphenylcyanamide occurs in the para positions yielding a nitrogen analogue of DDT. This chlorinated derivative is only 1/80th as toxic as DDT to Sitophilusgranarius (L).

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