Abstract
A series of 2-substituted 7-chloro-1, 3-benzoxazin-4-ones are synthesized from 2, 4-dichlorobenzamide and readily available N-acylbenzotriazole in one step. The final compound has been characterized by 1H NMR and 13C-NMR.This work have demonstrated that N-acylbenzotriazoles are valuable precursors in the synthesis of 2-furyl and 2-thienyl 1, 3-benzoxazin-4-one in high yields.
