Acetylene → 1,1,3,3-Tetrachloro-1,3-disilacyclopent-4-ene

Participants

Reaction Steps

Hydrosilation of acetylene with bis(dichlorosilyl)methane in the presence of RhCl(PPh3)3. Into the same apparatus as described in Example 1 were placed 1.02 g of bis(dichlorosilyl)methane, 0.102 g of RhCl(PPh3)3, and 20 ml of dried benzene. Acetylene gas was blown into the flask at 90 ml/min for 2 hours. The products were vacuum distilled at 67 Pa to yield a mixture comprising 0.61 g of 1,1,3,3-tetrachloro-1,3-disilacyclopent-4-ene (TCD-GC area 3.7%) and 1,1,3,3-tetrachloro-1,3-disilacyclopentane (TCD-GC area 35.6%).

Provenance & Evidence