Oxidative Desulfurization of Azole-2-thiones with Benzoyl Peroxide: Syntheses of Ionic Liquids and Other Azolium Salts
作者:Derek M. Wolfe、Peter R. Schreiner
DOI:10.1002/ejoc.200700114
日期:2007.6
1-Alkyl-3-methylimidazole-2-thiones were prepared from amino esters in one pot and converted to inherently halide-free 1-alkyl-3-methylimidazolium benzoates by oxidation with benzoyl peroxide followed by a novel anion exchange. Also reported are the outcomes of exchanges with other anions, acidifications of the imidazolium benzoates to other salts, and extension of the method to the syntheses of 1
1-烷基-3-甲基咪唑-2-硫酮在一个锅中由氨基酯制备,并通过用过氧化苯甲酰氧化然后进行新型阴离子交换转化为固有无卤化物的 1-烷基-3-甲基咪唑鎓苯甲酸酯。还报告了与其他阴离子交换的结果,将咪唑鎓苯甲酸盐酸化为其他盐,并将该方法扩展到 1,3-二苯基咪唑鎓和 3-甲基-和-丁基噻唑鎓盐的合成。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)