Pt Catalyzed Hydrosilylation of Fluorinated Phenoxy-Imine Ligands with Hydrosilanes
作者:Yi Wang、Hong Fan、Jianxiu Weng、Suyun Jie
DOI:10.1080/10426507.2014.947411
日期:2015.4.3
The hydrosilylation reactions of three fluorinated phenoxy-imine ligands, N-(3-allylsalicylidene)-2,6-difluoroaniline(1), N-(3-allylsalicylidene)-2,3,5,6-tetrafluoroaniline(2) and N-(3-allylsalicylidene)-2,3,4,5,6-pentafluoroaniline (3), with triethoxysilane (TES) and 1,1,1,3,5,5,5-heptamethyltrisiloxane (MDHM) catalyzed by Pt complex (Pt-PMVS) has been studied. Three silylated products bearing Si-OEt bonds were prepared, after optimizing reaction conditions, the product selectivity were in the range of 51%similar to 59%, and followed the order 1>2>3. The products and byproducts were isolated and characterized by FT-IR, H-1 NMR, C-13 NMR,Si- 29 NMR, HRMS, and elemental analysis. As a comparison, other three silylated phenoxy-imine ligands were obtained by hydrosilylation of ligands with MDHM. The product selectivity were around 93%similar to 96%, and the side reactions were substantially suppressed.