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一种高收率、高光学纯度的L-乳酸丁酯合成方法
Authors
刘菁
徐杰
李德才
Publication date
Publisher
Abstract
一种高收率、高光学纯度的L-乳酸丁酯的合成方法,以浓硫酸为催化剂,浓硫酸的加入量为乳酸质量的1.5%,正丁醇和乳酸的摩尔比可以是0.5-4,反应温度为50-150℃,反应结束后直接加入固体无水醋酸钠、固体无水碳酸钠、固体无水碳酸氢钠或固体无水氢氧化钠,中和硫酸;然后过滤分离。该合成方法可使L-乳酸丁酯的收率达90%以上,光学纯度达99.5%以上。带填
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Last time updated on 29/11/2016