Synthesis of 1,3-Dialkyl-1,2,3-triazolium Ionic Liquids and Their Applications to the Baylis−Hillman Reaction
作者:Yunkyung Jeong、Jae-Sang Ryu
DOI:10.1021/jo100618d
日期:2010.6.18
Novel 1,3-dialkyl-1,2,3-triazolium ionic liquids were synthesized via click reactions using 1-trimethylsilylacetylene and alkyl azides and were efficient reaction media for the Baylis−Hillman reaction. The problems associated with deprotonation of the C-2 hydrogen of [bmim][PF6] could be suppressed in the reaction of [bmTr][PF6] or [bmTr][NTf2]. 1,3-Dialkyl-1,2,3-triazolium ionic liquids are chemically
Rational selection of the cation of an ionic liquid to control the reaction outcome of a substitution reaction
作者:Rebecca R. Hawker、Ronald S. Haines、Jason B. Harper
DOI:10.1039/c8cc00241j
日期:——
A range of ionic liquids was examined as solvents for a substitution reaction. They were chosen through rationally varying the ionic liquid cation in order to enhance the rate constant. Access to charge and electron-withdrawing substituents benefitted rate enhancement, allowing ionic liquids to be rationally selected to control reaction outcome.