Anion-Functionalized Ionic Liquids Enhance the CuI-Catalyzed Cross-Coupling Reaction of Sulfinic Acid Salts with Aryl Halides and Vinyl Bromides
Ming Bian, Fada Xu, Cheng Ma*
*Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. of China, Email: mcorgzju.edu.cn
M. Bian, F. Xu, C. Ma, Synthesis, 2007, 2951-2956.
An easily accessible, anion-functionalized ionic liquid, 1-ethyl-3-methylimidazolium (S)-2-amino-3-methylbutyric acid salt, [emim][Val], is an efficient additive for the CuI-catalyzed coupling reaction of sulfinic acid salts with aryl iodides, aryl bromides and vinyl bromides, leading to sulfones in good yields.
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ionic liquids, homogeneous catalysis, cross-coupling, copper, sulfones