反应详情

Hydrosilation of diphenylacetylene with bis(dichlorosilyl)trichlorosilylmethane in the presence of Pd(PPh3)4. Into the same apparatus as described in Example 1 were add 0.98 g of bis(dichlorosilyl)trichlorosilylmethane, 0.101 g of Pd(PPh3)4, and 25 ml of dried benzene to form a mixture. The mixture was brought to reflux temperature and 0.52 g of diphenylacetylene in 10 ml of benzene were added over a 30 minute period. The mixture was stirred at reflux temperature for an additional 18 hours and then the solvent removed at atmospheric pressure. The residue was vacuum distilled to yield a mixture comprising 0.417 g of 1,1,3,3-tetrachloro-2-trichlorosilyl-4,5-diphenyl-1,3-disilacyclopentane (TCD-GC area 25%).

1. customto form a mixture
2. additionwere added over a 30 minute period
3. temperatureat reflux temperature for an additional 18 hours
4. customthe solvent removed at atmospheric pressure
5. distillationdistilled