间甲苯氨基甲酸甲酯的绿色合成工艺

摘要

Methyl m-tolylcarbamate is the precursor of green synthesis for 1-isocyanato-3-methylbenzene.The process of synthesizing Methyl m-tolylcarbamate by using 3-aminetoluene to react with dimethyl carbonate (DMC) was studied. Several catalysts were examined. The yield of Methyl m-tolylcarbamate is 83.35% at 130 ℃ for 2 h over zinc acetate catalyst.%　　间甲苯氨基甲酸甲酯是绿色合成间甲苯异氰酸酯的前体。利用碳酸二甲酯(DMC)与间甲苯胺反应合成间甲苯氨基甲酸甲酯,考察了多种催化剂的活性。结果表明,当以乙酸锌为催化剂时,130℃反应2h，间甲苯氨基甲酸甲酯的收率为85.35%。