环境友好性合成甲基间甲苯基碳酸酯

Synthesis of Methyl 3 - tolyl Carbonate Under Amicable Environment

在醋酸铅催化下,碳酸二甲酯与间甲苯酚酯交换合成甲基间甲苯基碳酸酯,反应的最佳实验条件:n(DMC):n(间甲苯酚):n(Pb(Ac)_2·3H_2O)=1:4:0.04,反应时间12h,反应温度190℃,间甲苯酚的转化率为22.01％,甲基间甲苯基碳酸酯的选择性为78.34％。

In the presence of Pb(Ac)2.3H2O, dimethyl carbonate reacts with 3 - tolyl phenol lo form methyl 3 - tolyl carbonate. The optimum reaction conditions are as follow: n(DMC): n(3 - tolyl phenol): n(Pb(Ac)2.3H20 ) = 1: 4: 0. 04, reaction time 12h, reaction temperature 190℃, the conversion of 3 - tolyl phenol 22.01%, the selectivity lor methyl 3 - tolyl carbonate 78. 34% .