1,2,3-Trimethoxypropane and Glycerol Ethers as Bio-Sourced Solvents from Glycerol. Synthesis by Solvent-Free Phase-Transfer Catalysis and Utilization as an Alternative Solvent in Chemical Transformations
作者:Marc Sutter、Wissam Dayoub、Estelle Métay、Yann Raoul、Marc Lemaire
DOI:10.1002/cctc.201300458
日期:2013.10
phase‐transfer catalyst with no additional solvent. No heating was required, and the synthesis was easily performed under atmospheric pressure on a 150 g scale. For the preparation of 2, the conversion of glycerol was complete and the selectivity for the expected glycerol trimethylether was above 95 %. This product was utilized as a solvent in organic reactions such as transesterifications between glycerol
1,2,3-三甲氧基丙烷(2),1-烷氧基-2,3-二甲氧基丙烷和1-芳氧基-2,3-二甲氧基丙烷在固相转移催化中得到了良好的收率和选择性。无机碱和铵盐作为相转移催化剂,无需其他溶剂。不需要加热,并且容易在大气压下以150g规模进行合成。准备2,甘油的转化完成,并且预期的甘油三甲醚的选择性高于95%。该产品在有机反应中用作溶剂,例如甘油和植物油之间的酯交换反应,有机金属反应(格氏和巴比尔型反应),碳-碳偶联反应(Suzuki,Sonogashira,Heck)以及在脱氢反应中的醚化反应中烷基化。溶剂显示出有趣的聚合物增溶性能。