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Catalysis of hydrosilylation, part XXII: Polymer‐protected immobilized platinum complex catalysts for gas‐phase hydrosilylation of acetylene
Author(s) -
Marciniec Bogdan,
Foltynowicz Ze,
Lewandowski Mariusz
Publication year - 1993
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.590070308
Subject(s) - hydrosilylation , chemistry , acetylene , catalysis , platinum , gas phase , polymer , phase (matter) , polymer chemistry , organic chemistry , chemical engineering , engineering
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 A ‐Pt, S B ‐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.