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对甲苯磺酸作为丁二酸和甲醇的酯化催化剂,性能优于硫酸.该文探讨并找到了其较好的反应条件,酯化率达95.0％.“,”It has been found that p - Toluene sullphonic acid was superior to H2SO4 when used as catalys for esterification of metyl alcohol with succinic acid. The optimum reaction conditions in synthesis of dimethyl succinate catalyzed with p - Toluene sulphonic acid were determined. with the yield at 95 .0%.