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

Autor: Lan Gao, Xiaochun Tao, Yongmin Huang, Taoping Liu
Rok vydání: 2016
Předmět:
Zdroj: Tetrahedron Letters. 57:4905-4909
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2016.09.061
Popis: 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.
Databáze: OpenAIRE