报道了合成乳酸丁酯的新方法 ，以乳酸和正丁醇为原料 ，在甲基磺酸催化下以亚硫酸镁为脱水剂 ，用索氏提取器进行回流合成。
The process is carried out by using Soxhlet set, as experiment unit, with methyl sulfonic acid as a catalyst and magnesium sulfite as dehydrating agent, giving 97.
报道了合成乳酸丁酯的新方法 ，以乳酸和正丁醇为原料 ，在甲基磺酸催化下以亚硫酸镁为脱水剂 ，用索氏提取器进行回流合成。
The process is carried out by using Soxhlet set, as experiment unit, with methyl sulfonic acid as a catalyst and magnesium sulfite as dehydrating agent, giving 97.
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