作者:H. Bürger、P. Moritz
DOI:10.1016/0022-328x(92)80068-9
日期:1992.4
The reduction of (CFCl2)SiCl3 by LiAlH4, Me3SnH, and (nBu)3SnH has been studied. The compound (CH2F)SiH3 (I) and all the compounds of the series (CFCl2-mHm)SiCl3-nHn, m = 0, 1 and n = 0-3 were detected and characterized by NMR spectroscopy. Conditions for the synthesis of I, (CHFCl)SiH3 (IX) and (CFCl2)SiH3 (V) with acceptable yields have been optimized. These novel compounds were studied by H-1, F-19, C-13 and Si-29 NMR spectroscopy; their infrared and Raman spectra were recorded and assigned with the assistance of a normal coordinate analysis of I and its isotopomer (CD2F)SiD3. The thermolyses of I, IX and (CHF2)SiH3 (X) which start at about 120, 200 and 180-degrees-C, respectively, have been studied. Whereas I decomposes by a migration of F from C to Si, compound X undergoes elimination of the carbene CHF, insertion of which into SiH bonds ultimately gives CH3Si derivatives.