Patent number: 5523436
Abstract: Novel catalysts of the general formulaMX.sub.a Y.sub.b,in whichM is Pt, Pd, Rh, Ru, Os or Ir,X is a triazene, tetrazene, tetrazadiene or pentazadiene ligand,Y is a ligand selected from Cl, Br, I, NH.sub.3, P(C.sub.2 H.sub.5).sub.3, P(C.sub.6 H.sub.5).sub.3, H, CO, 1,5-cyclooctadiene, pyridine, bipyridine, acetate, acetylacetonate, phenylnitrile, ethylenediamine, acetonitrile, 2,5-norbornadiene, nitrate, nitrite, H.sub.2 O, benzene, diphenylphosphinoethane and 1,3-divinyl-1,1,3,3-tetramethyldisiloxane,a is 1, 2, 3 or 4 andb is 0 or an integer from 1 to 6, are described.The catalysts promote the addition of Si-bonded hydrogen onto an aliphatic multiple bond, in which the catalysts are activated by heating at temperatures of 50.degree. to 250.degree. C., by irradiation with light, by addition of Bronsted acids and/or by addition of acid-forming agents.
Type:
Grant
Filed:
December 10, 1993
Date of Patent:
June 4, 1996
Assignee:
Wacker-Chemie GmbH
Inventors:
Jochen Dauth, Udo Peetz, Bernward Deubzer