Thermolysis of trifluoromethylsilanes. Novel fluoromethylsilanes by insertion of CF2 and CHF into Si H bonds

H Beckers, H Bürger

Index: Beckers, H.; Buerger, H. Journal of Organometallic Chemistry, 1990 , vol. 385, # 2 p. 207 - 219

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Citation Number: 21

Abstract

Abstract The thermal decomposition in the gas phase of CF 3 SiH 3 and (CF 3) 2 SiH 2 begins at∼ 200 and∼ 100 C, respectively. It is catalyzed by KF, and involves as initial step a clean CF 2 elimination with an α-fluorine shift. Reactive species such as HBr trap CF 2 quantitatively (to give in this case CHF 2 Br), while addition to the less reactive cyclohexene (to give 7, 7-difluorobicycloheptane) is accompanied by secondary reactions. These ...