N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯苯甲酸和对苯为原料,经苯化、二环化、N-烷化、硫代化反应合成了N-丁-2-硫代吖啶酮。