Methanesulfonic Acid as a More Efficient Catalyst for the Synthesis of Lauraldehyde Glycerol Acetal

作者：Zhang, Tong; Li, Xu; Dong, Jinxiang^*

来源：Tenside Surfactants Detergents, 2014, 51(6): 516-520.

DOI：10.3139/113.110337

• Glycerol
• lauraldehyde
• dodecanal
• methanesulfonic acid
• lauraldehyde glycerol acetal
• surface tension

The purpose of this paper is to describe a more efficient catalyst for the synthesis of lauraldehyde glycerol acetal. Catalytic effect of methane sulfonic acid and p-toluenesulfonic acid were compared. With a mixture of 0.67 wt.% methanesulfonic acid in relation to lauraldehyde, equimolar amounts of glycerol and lauraldehyde being stirred at 110 degrees C for 2.5 h, the yield of the product was 76.32 %. When p-toluenesulfonic acid was used, the amount of the catalyst was 0.91 wt.% and the yield of the product was 62.91 % after reacting for 2.5 h at 120 degrees C. The result reveals that methane sulfonic acid is more efficient. Surface tension measurements showed that critical micelle concentration of the product catalyzed by methanesulfonic acid was 5.33 x 10(-5) mol . L-1, and at this point the surface tension could achieve about 24 mN m(-1).

• 出版日期2014-11
• 单位太原理工大学