ethyl 2-(5-amino-2-chloro-benzoyloxy)-2-methyl-propionate 、
氯甲酸三氯甲酯 以
乙酸乙酯 为溶剂,
反应 3.0h,
以In this manner there is obtained ethyl 2-(2-chloro-5-isocyanato-benzoyloxy)-2-methyl-propionate的产率得到ethyl 2-(2-chloro-5-isocyanato-benzoyloxy)-2-methylpropionate