Acetylene → HCID 123692568, compound

Hydrosilation of acetylene with tris(dichlorosilyl)methane in the presence of H2PtC6. Into the same apparatus as described in Example 1 were placed 220 μl of a 0.1 M H2PtCl6 /IPA solution and the flask placed under a dry nitrogen atmosphere. The IPA was removed from the flask under vacuum and 5.31 g of tris(dichlorosilyl)methane and 30 ml of dried benzene added to form a mixture. Acetylene gas was blown into the mixture at a rate of 90 ml per minute for 8 hours. The resulting mixture was vacuum distilled at 67 Pa to yield a mixture comprising 4.51 g of 1,1,3,3-tetrachloro-2-dichlorosilyl-1,3-disilacyclopent-4-ene (TCD-GC area 31.7%) and 3,3,5,5-tetrachloro-4-dichlorosilyl-3,5-disilahepta-1,6-diene (TCD-GC area 8.6%). 1,1,3,3-Tetrachloro-2-dichlorosilyl-1,3-disilacyclopent-4-ene =1H-NMR (CDCl3, ppm):1.33 (d, 3.9 Hz, 1H, SiCHSi), 5.73 (d, 3.9 Hz, 1H, SiH), 7.43 (s, 2H, CH=CH).

1. customThe IPA was removed from the flask under vacuum and 5.31 g of tris(dichlorosilyl)methane and 30 ml of dried benzene
2. additionadded to form a mixture
3. distillationdistilled at 67 Pa

ORD record

ord-3ca7e90c62f64aecbb80c76ff2b83d05

Source dataset

uspto-grants-1999_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05998649