4-Methyl-12H-dibenzo-[d,g][1,3]dioxocin-6-carboxylic acid 、 、
甲醇 在
碳酸氢钠 、
magnesium sulfate 、
乙醇 作用下,
反应 16.0h,
以to obtain 0.77 g (41 percent of theory) of the title compound as a solid melting at 104°-105° C的产率得到methyl 4-methyl-12H-dibenzo[d,g][1,3]dioxocin-6-carboxylate