Impact of substituents attached to N-heterocyclic carbenes on the catalytic activity of copper complexes in the reduction of carbonyl compounds with triethoxysilane was written by Peng, Jiajian;Chen, Lingzhen;Xu, Zheng;Hu, Yingqian;Li, Jiayun;Bai, Ying;Qiu, Huayu;Lai, Guoqiao. And the article was included in Chinese Journal of Chemistry in 2009.Synthetic Route of C9H15F6N2P This article mentions the following:
By using functionalized imidazolium salts such as 1-allyl-3-alkylimidazolium or 1-alkyl-3-vinylimidazolium salts as carbene ligand precursors, the reduction of aryl ketones with triethoxysilane catalyzed by copper salt/imidazolium salt/KO-tert-Bu systems was described. The functional substituents attached to the N-heterocyclic carbene 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. In the experiment, the researchers used many compounds, for example, 1-Butyl-3-vinyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 915358-85-9Synthetic Route of C9H15F6N2P).
1-Butyl-3-vinyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 915358-85-9) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Synthetic Route of C9H15F6N2P
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem