Expedient Synthesis of Symmetric Aryl Ketones and of Ambient-Temperature Molten Salts of Imidazole
作者:Philippe Lucas、Naïma El Mehdi、Hoang Anh Ho、Daniel Bélanger、Livain Breau
DOI:10.1055/s-2000-6416
日期:——
A short procedure for the synthesis of 2,2-di(3-thienyl)-1,3-dioxolan is described. The route developed is convenient (only two synthetic and one chromatographic steps are required) and efficient (66% overall yield from 3-bromothiophene). This compound was transformed into the ketone, cyclopenta[2,1-b:3′,4′-b′]dithiophen-4-one by a known process. Optimized syntheses of symmetric aryl ketones, 1-alkyl-3-methylimidazolium and 1-alkyl-2-methyl-3-methylimidazolium liquid salts are also reported.
描述了一种合成2,2-di(3-thienyl)-1,3-dioxolan的简短过程。开发的路线方便(仅需两个合成步骤和一个色谱步骤)且高效(从3-bromothiophene的总产率为66%)。该化合物通过已知过程转化为酮,cyclopenta[2,1-b:3′,4′-b′]dithiophen-4-one。还报告了对称芳基酮、1-烷基-3-甲基咪唑盐和1-烷基-2-甲基-3-甲基咪唑盐的优化合成。