Microwave assisted synthesis of glycerol carbonate from glycerol and urea
Microwave assisted synthesis of glycerol carbonate from glycerol and urea
复制标题
微波辅助甘油和尿素合成碳酸甘油酯
DOI：
10.1515/pac-2017-0303
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发表时间：
2017-05
影响因子：
1.8
通讯作者：
Han Buxing
中科院分区：
文献类型：
--
作者：
Zhang Lujun;Zhang Zhaofu;Wu Congyi;Qian Qingli;Ma Jun;Jiang Long;Han Buxing
摘要甘油转化为高附加值的化学品是绿色化学中的一个重要课题。尿素甘油解生成碳酸甘油酯是甘油转化的重要途径。在无溶剂条件下，以甘油和尿素为原料，在微波辐射下合成了甘油碳酸酯。考察了ZnSO4、ZnCl2、CuSO4和MgSO4的催化性能，其中ZnSO4的催化性能最好。以硫酸锌为催化剂，考察了催化剂用量、反应温度、反应时间、微波功率、尿素与甘油摩尔比等因素对反应的影响。结果表明，微波辐射能有效地促进反应，产物碳酸甘油酯的产率可达93.7%。
Abstract The transformation of glycerol into value-added chemicals is an interesting topic in Green Chemistry. The glycerolysis of urea into glycerol carbonate is an important route of glycerol transformation. In this work, the synthesis of glycerol carbonate from glycerol and urea was performed under microwave irradiation and solvent free conditions. The catalytic properties of ZnSO4, ZnCl2, CuSO4 and MgSO4 were tested and ZnSO4 showed the best performance. The effects of catalyst amount, temperature, reaction time, microwave power, molar ratio of urea to glycerol on the reaction were studied using ZnSO4 as the catalyst. It was demonstrated that microwave irradiation could promote the reaction effectively, and the yield of desired product glycerol carbonate could reach 93.7%.
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