第 50 卷第 3 期 Vol. 50 No. 3 2020 年 6 月 Jun 2020

所属栏目：功能材料 草酸亚锡催化合成双季戊四醇六正戊酸酯

万庆梅1，王胜利2，刘志湘1 （1. 浙江皇马科技股份有限公司，浙江 上虞 312363；2. 浙江绿科安化学有限公司，浙江 上虞 312359）

摘　要：以草酸亚锡为催化剂，进行双季戊四醇和正戊酸的酯化反应，合成了双季戊四醇六正戊酸酯，考察了催化剂用量、醇酸配比、反应温度、反应时间等因素对酯化率的影响。确定了优化合成条件：n（正戊酸）∶n（双季戊四醇）=6.5∶1.0，催化剂用量为反应物总质量的0.05%，210 ℃酯化反应7 h，酯化率超过99%，用红外光谱、气相色谱和核磁对反应产物进行了表征。

关键词：草酸亚锡；双季戊四醇；酯化反应；正戊酸

中图分类号：TE666　　文献标识码：A　　文章编号：1009-9212（2020）03-0062-03

Synthesis of Dipentaerythritol Ester Catalyzed by Stannous Oxalate

WAN Qing-mei1, WANG Sheng-li2, LIU Zhi-xiang1 (1. Zhejiang Huangma Technology Co.,Ltd., Shangyu 312363, China; 2. Zhejiang Lvkean Chemical Co.,Ltd., Shangyu 312359, China)

Abstract：Using stannous oxalate as catalyst, dipentaerythritol and valeric acid were esterified to obtain dipentaerythritol hexaester. Effects of factors including the dosage of catalyst, molar ratio of valaric acid to dipentaerythritol, reaction temperature,and reaction time on the results of esterification were investigated. The optimal conditions were obtained asthe folloeings: the dosage of the catalyst was of 0.50%(w/w) of total mass of the reactants; n( valeric acid)∶n(dipentaerythritol) was of 6.5∶1.0; reaction temperature was of 210 ℃ and reaction time was of 7 h. The yield of esterification reached more than 99%. The reaction products were characterized by FTIR, GC and 13CNMR.

Key words：stannous oxalate; dipentaerythritol; esterification; valeric acid

作者简介：万庆梅（1979-），女，山东德州人，高级工程师，硕士研究生，研究方向：表面活性剂的研究与开发（E-mail：wanqingmei@huangma.com）。

收稿日期：2020-04-16