Eight substituted ureas herbicides were synthesized with bis(trichloromethyl) carbonate(BTC).The production structures were identified by elemental analysis and IR.

• 用二(三氯甲基)碳酸酯(BTC)代替光气,“一锅法”合成了8种取代脲类除草剂,产物结构经元素分析、IR确证。