Silylene reactions with ethylene and butadiene: mechanism and kinetics

Generation and reactions of silylenes in the gas phase

“…34 The obtained results made it possible to consider the interaction of :SiH2 with ethylene in the gas phase as a sequential stepwise process comprising the initial formation of a silacyclopropane intermediate and subsequent conversion of it either into the starting materials or into ethylsilylene and vinylsilylene.…”

Silylenes

“…A theoretical study of the reaction of SiH 2 with acetylene found that most observations can be accounted for by a model in which concerted formation of chemically activated silirene is followed by competition between dissociation, deactivation and rearrangement channels 128 . Experimental determinations of product yields from SiH 2 and ethylene were successfully modeled with a similar mechanism involving the formation of chemically activated silirane as the concerted primary step 129 .…”

Ab initio study on the mechanism of forming a silapolycyclic compound between dimethylmethylenesilylene and acetone

“…A silylene reaction is regarded as an effective method in the synthesis of new bonds and heterocyclic compounds containing Si, which has long been one of the most interesting topics for organo-silicon chemists. There have been quite a lot of theoretical and experimental investigations for addition reactions of silylene [3][4][5][6][7][8][9]. We have also performed some studies on this aspect [10][11][12][13].…”

“…Optimized MP2/6-31G * geometrical parameters and the atomic numbering for the species in cycloaddition reaction(3). Lengths are in Å and angles in degree.DE of À64.8 kJ mol À1 .…”