A novel and recoverable polymeric ionic liquid, poly(1-vinyl-3-dodecylimidazolium tribromide) (Poly[VDIM]Br₃), was successfully prepared and fully characterized. And a highly efficient metal-free catalytic system Poly[VDIM]Br₃/tert-butyl nitrite was developed for the oxidation of sulfides. With air as oxidant, we have successfully achieved 19 kinds of sulfides selectively and efficiently oxidized to corresponding sulfoxides using this catalytic system at room temperature.

中文翻译：

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新型催化体系聚（1-乙烯基-3-十二烷基咪唑三溴化物）/ TBN，用于以空气为氧化剂将硫化物氧化为亚砜

成功制备了一种新型且可回收的聚合物离子液体，聚（1-乙烯基-3-十二烷基咪唑三溴化物）（Poly [VDIM] Br ₃）。并开发了一种高效的无金属催化体系聚[VDIM] Br ₃ /亚硝酸叔丁酯，用于硫化物的氧化。在室温下，使用空气作为氧化剂，我们成功地使用该催化系统成功地实现了19种硫化物的选择性和有效氧化为相应的亚砜。