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 Pt(CH2 =CH)(PPh3)2. Into the same apparatus as described in Example 1 were placed 0.89 g of bis(dichlorosilyl)methane, 0.06 g of Pt(CH2 =CH)(PPh3)2, and 20 ml of dried benzene. Acetylene gas was blown into the flask at 90 ml/min for 3 hours. The products were vacuum distilled at 67 Pa to yield a mixture comprising 0.26 g of 1,1,3,3-tetrachloro-1,3-disilacyclopent-4-ene (TCD-GC area 32.1%) and 1,1,3,3-tetrachloro-1,3-disilacyclopentane (TCD-GC area 7.5%).

Provenance & Evidence