Method for the preparation of complexes of metals of the VIII group of the periodic table and their use as catalysts for transferring hydrogen in a heterogeneous phase
AssigneeAnic S.p.A.
InventorsRenzo Bianchi, Mario Gabriele Clerici
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Abstract
A method is disclosed for preparing complexes of metals of the VIII Group of the Periodic Table, useful as hydrogenation catalysts. The method, as a single-step process, comprises reacting a polymeric complex containing V Group elements and VIII Group metal compounds directly with a metal atom which is directly bound to the V group element in the presence of a reducing substance. The reducing substance is selected among alkali metal and alkaline earth metal hydrides, mixed alkaline-III group element hydrides, organic metallic compounds of III Group metals, alkali metal and alkaline earth metal alkyls, Grignard compounds.
Claims1
A method for the preparation of a resin complex of iridium which comprises reacting Ir(III)Cl.sub.3 with a copolymer of styrene, p-Br-styrene and divinylbenzene that has been phosphinated with ClP(isopropyl).sub.2 after lithiation with butyl lithium in benzene and said resin complex is reduced with an excess of sodium borohydride.
Dependencies are inferred from the claim text.