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摘要
A catalytic synthesis of deuterated silanes SiEt3D, SiMe2PhD and SiPh2D2 is reported that allows their facile generation in a 3-4 g scale, utilizing D2 (0.5 bar) as the hydrogen isotope source and low catalyst loadings (0.01 mol%). The catalyst precursor is the rhodium (III) complex 1, which contains a (eta 5-C5Me5)Rh cation stabilized by coordination to a cyclometallated phoshine PMeXyl2 (Xyl=2,6-C6H3Me2). The same complex is also an active catalyst for the hydrosilylation of the C=O and C=N bonds of various ketones, aldehydes and alpha,beta-unsaturated nitriles. Hence, combination of these two properties permits development of a simple and proficient one-flask, two-step procedure for the deuterosilylation of these substrates.
- 出版日期2012-1
