甲基丙烯酰氧乙基异氰酸酯的合成方法

Method for synthesizing methacryloxyethyl isocyanate

Abstract

本发明公开了一种甲基丙烯酰氧乙基异氰酸酯的合成方法,包括以乙醇胺为起始原料,在有机溶剂中与氯化氢或盐酸成盐,并在有机碱催化剂作用下与甲基丙烯酰氯缩合反应制成甲基丙烯酰氧乙基胺基盐酸盐;向甲基丙烯酰氧乙基胺基盐酸盐中通入光气反应生成甲基丙烯酰氧乙基异氰酸酯溶液;甲基丙烯酰氧乙基异氰酸酯溶液在阻聚剂存在下,经减压脱溶、减压精馏得甲基丙烯酰氧乙基异氰酸酯产品。本发明工艺简单、生产成本低、产品纯度高、收率高。

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