PROCESS FOR PREPARING BENZOXAZOLONE DERIVATIVES

摘要

Benzoxazolone derivs. of formula (I) are prepd. by reacting benzoxazolone of formula (II) with chlorine, or with chlorine and formaldehyde successively, in the presence of a mixt. of water and 20-80% dioxane. In the formula, A is a hydrogen atom or hydroxymethyl. Prods. are useful as intermediates to insecticides.