文献类型：期刊文献

英文题名：2,2,6,6-Tetramethylpiperidinium triflate (TMPT): a highly selective and self-separated catalyst for esterification

作者：Gao, Lan[1];Liu, Taoping[2];Tao, Xiaochun[1];Huang, Yongmin[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Specially Funct Polymer Mat & Related Tec, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Suzhou Eleco Chem Ind Co Ltd, 608 Xiao Shu Rd, Kunshan 215341, Jiangsu, Peoples R China

年份：2016

卷号：57

期号：44

起止页码：4905

外文期刊名：TETRAHEDRON LETTERS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000386415300007)，CCR-EXPANDED(收录号:WOS:000386415300007)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 21476071) and Shanghai Leading Academic Discipline Project (B502).

语种：英文

外文关键词：Alkyl piperidinium sulfonates; Esterification; Selectivity; Steric hindrance; Self-separation

摘要：An eco-friendly and readily accessible 2,2,6,6-tetramethylpiperidinium triflate was found as highly-selective and self-separated catalyst for esterification under solvent-free condition. The X-ray crystallography revealed that it formed a 'hydrophobic wall' which could effectively eliminate the generated water from the reactive sites. Moreover, it could precipitate from the reaction system with excellent recovery ratio (>99%) and be reused for ten times without any significant loss of activity. (C) 2016 Elsevier Ltd. All rights reserved.