Firstly, p-methylacetophenone was obtained in the presence of alchlor as the catalyst, and the optimum condition was 4:1:2 in molar ratio for toluene, acetic anhydride and alchlor with yield of 86.2%.

首先，以甲和为原料，在催剂三氯铝存在下合成对甲基，并确定甲，和三氯铝的最佳摩尔比为4: 1: 2，收率为86.2%。