Popis: |
The reaction of water with 2,3-bis(trifluoromethyl)-7,7-dimethyl-1,4-diphenyl-7-silanorbornadiene was investigated and found to give a benzyldimethylsilanol. The thermal elimination of dimethylsilylene was studied for five different 7-silanorbornadienes and the ease of elimination correlated to the substituents on the basal carbon atoms. In general, stability towards elimination is increased by bulky or electron withdrawing substituents. The reaction of dimethylsilylene with trichloro- and trifluoroborane was investigated and both were found to give dihalodimethylsilane instead of insertion products. |