Catalysis of hydrosilylation, part XXII: Polymer-protected immobilized platinum complex catalysts for gas-phase hydrosilylation of acetylene

✍ Scribed by Bogdan Marciniec; Zenon Foltynowicz; Mariusz Lewandowski

• Book ID: 102730877
• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 508 KB
• Volume: 7
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.590070308

✦ Synopsis

A platinum catalyst (hexachloroplatinic acid dissolved in ethanol) was immobilized by anchoring via amine and mercapto groups to silica followed by formation of a polymer layer which protected the catalyst against leaching. These catalysts (A and B) as well as precatalysts (S,-Pt, S,-Pt) which were not protected by polymer were tested in the gas-phase hydrosilylation reaction of acetylene with trichlorosilane.

The catalytic parameters (yield 80%, selectivity 100%) obtained under optimal conditions prove the advantage of catalyst A over 300 h reaction time by the flow method.