Synthesis and Properties of Lauric Acid-2-hydroxy-3-propane Sulfonic Acid Sodium Salt
作者:Yulan Hao、Dandan Yuan、Yan Wang、Ying Qi、Rongming Zhang
DOI:10.14233/ajchem.2014.16950
日期:——
The lauric acid-2-hydroxy-3-propane sulfonic acid sodium salt was synthesized by using sodium bisulfite, epichlorohydrin, sodium phosphate and lauric acid. The influence factors on reaction temperature, reaction time, the amount of catalyst and reactant molar ratio to the yield were investigated. The favorable conditions of synthesizing were determined:epichlorohydrin was added into the solution of sodium bisulfite of 85 °C, stirring for 2 h and left for 1.5 h. 3-Chloro-2-hydroxy-propane sulfonic acid sodium was synthesized. 3-Chloro-2-hydroxy-propane sulfonic acid sodium was mixed into the solution of sodium phosphate at 55 °C and 4 h reaction time. The 2,3-oxiranemethane sulfonic acid sodium salt was formed. 2,3-Oxiranemethane sulfonic acid sodium salt solution was dropped into the solution of lauric acid at 90 °C, the dropping time 0.5 h and left for 2.5 h. Lauric acid-2-hydroxy-3-propane sulfonic acid sodium salt was obtained. The yield was 85.2 % and was characterized by FTIR.
利用亚硫酸氢钠、环氧氯丙烷、磷酸钠和月桂酸合成了月桂酸-2-羟基-3-丙烷磺酸钠盐。研究了反应温度、反应时间、催化剂用量和反应物摩尔比等因素对产率的影响。确定了有利的合成条件:在 85 ℃ 的亚硫酸氢钠溶液中加入环氧氯丙烷,搅拌 2 小时,静置 1.5 小时,合成 3-氯-2-羟基丙烷磺酸钠。将 3-氯-2-羟基丙烷磺酸钠与磷酸氢二钠溶液混合,温度为 55 ℃,反应时间为 4 小时。生成了 2,3-环氧乙烷磺酸钠盐。将 2,3-环氧乙烷磺酸钠溶液滴入月桂酸溶液中,温度为 90 °C,滴加时间为 0.5 小时,静置 2.5 小时。得到月桂酸-2-羟基-3-丙烷磺酸钠盐。收率为 85.2%,并通过傅立叶变换红外光谱进行了表征。