三相相转移催化剂催化合成N─乙基间甲苯胺的研究

PERFORMANCE OF TRIPHASE CATALYSIS IN SYNTHESIS OF N-ETHYL-M-TOLUIDINE

采用三相相转移催化剂（四丁基溴化铵－聚苯乙烯树脂），由间甲苯胺和溴乙烷合成了N－乙基间甲苯胺，探讨了反应条件对产物收率的影响，在催化剂用量55％，间甲苯胺与溴乙烷摩尔比为1：1．6及反应时间6h的优化工艺条件下，N－乙基间甲苯胺的收率达到93．6％。

A new precess has been devaloped to synthesize N-ethyl-m-toluidine from m-toluidine and bromoethane by catalysis of triphase transfer catalyst (TBAB-PS) and a study of the effect of reaction conditions on the yield of N-ethyl-m-toluidien was also condition,The yield of N-ethyl-m-toluidine was 93^6% under the optimum reaction conditons i.e the consumption of catalyst was 5. 5 %, the molar ratio of m-toluidine and bromoethane was 1:1.6,and the reaction time was 6h.