氨基磺酸催化合成顺丁烯二酸二丁酯

Synthesis of Dibutyl Maleate Using Sulfamic Acid as A Catalyst

用氨基磺酸催化合成了顺丁烯二酸二丁酯，酯收率为９４％。对反应温度，带水剂的选择等进行了探讨，并考察了该催化剂重复使用的效果。

Sulfamic acid instead of sulfuric acid as a catalyst for synthesis of dibutyl maleate was reported. Optimum conditions for esterification are mol ratio of maleic anhydride∶butanol to be 0.1∶0.25, solvent toluene 20mL, the reaction time 2h. Yield is 94%. The catalyst can be reused.