作者:L. M. Yagupolskii、T. M. Sokolenko、K. I. Petko
DOI:10.1007/s11172-005-0323-3
日期:2005.3
Bromination, acylation, nitration, and metallation of imidazole and pyrrole derivatives containing the difluoromethylene fragment at the N atom were studied. 1-(1,1,2,2-Tetrafluoroethyl)pyrrole, 1-(1,1,2,2-tetrafluoroethyl)imidazole, and 1-(2-chloro-1,1,2-trifluoroethyl)imidazole were used as substrates. 1-Alkyl-3-(1,1,2,2-tetrafluoroethyl)- and 1-alkyl-3-(2-chloro-1,1,2-trifluoroethyl)imidazolium iodides were obtained. These can be used as intermediates for preparation of new ionic liquids of the imidazole series and 1-alkyl-3-polyfluoroethylimidazole-2-thiones.
研究了N原子上含有二氟亚甲基片段的咪唑和吡咯衍生物的溴化、酰化、硝化和金属化。使用1-(1,1,2,2-四氟乙基)吡咯、1-(1,1,2,2-四氟乙基)咪唑和1-(2-氯-1,1,2-三氟乙基)咪唑作为基材。获得1-烷基-3-(1,1,2,2-四氟乙基)-和1-烷基-3-(2-氯-1,1,2-三氟乙基)咪唑鎓碘化物。这些可用作制备咪唑系列新型离子液体和1-烷基-3-多氟乙基咪唑-2-硫酮的中间体。