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Impact of Substituents Attached to N-Heterocyclic Carbenes on the Catalytic Activity of Copper Complexes in the Reductio
By using functionalized imidazolium salts such as 1-allyl-3-alkylimidazolium or 1-alkyi-3-vinylimidazolium salts as carbene ligand precursors, the reduction of aryl ketones with triethoxysilane may be catalyzed by copper salt/imidazolium salt/KO~tBu systems. The functional substituents attached to the N-heterocyclic carbene (NHC) serve to enhance the catalytic activity. Different copper salts also have an effect on the catalytic activity, with copper(Ⅱ) acetate monohydrate being superior to copper(I) chloride.
作 者: PENG, Jiajian CHEN, Lingzhen XU, Zheng HU, Yingqian LI, Jiayun BAI, Ying QIU, Huayu LAI, Guoqiao 作者单位: Key Laboratory of Organosilicon Chemistry and Material Technology of the Ministry of Education,Hangzhou Normal University, Hangzhou, Zhejiang 310012, China 刊 名: 中国化学(英文版) SCI 英文刊名: CHINESE JOURNAL OF CHEMISTRY 年,卷(期): 2009 27(11) 分类号: O6 关键词: N-heterocyclic carbene ketone reduction【Impact of Substituents Attached to N】相关文章:
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