Hybrid inorganic/organic polymer catalytic membrane materials comprising immobilized molecular catalysts and their preparation

An organic polymer and molecular catalyst technology, applied in catalyst activation/preparation, organic chemistry, organic chemistry methods, etc., can solve the problem of not manufacturing polymer-based catalytic membranes, not manufacturing reactors, and unsuccessfully developing polymers. Catalytic membranes, etc.
CN102470356AInactive Publication Date: 2012-05-23NIPPON KODOSHI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NIPPON KODOSHI
Publication Date
2012-05-23
Estimated Expiration
Not applicable · inactive patent

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Abstract

A low cost, viable and modular method to prepare new, highly selective "catalytic membranes" and their use in various types of reactors is described. The membranes are versatile and reusable with negligible catalyst leaching, particularly in the asymmetric hydrogenation of substituted a, ss-unsaturated acids or esters. The membranes comprise a hybrid inorganic / polymeric support material (i) and a molecular catalyst (ii) immobilized onto them, wherein: - (i) consists of a hybrid inorganic / polymeric compound in which inorganic compounds and organic polymers are chemically combined; - the inorganic compound is at least one selected from silicic, tungstic, molybdic and stannic acid compounds; - the organic polymers have hydroxy groups, preferably being polyvinylalcohol (PVA); - (ii) is a preformed metal catalyst, which contains at least one transition metal selected from Ru, Rh, Pd, Ir, Ni, Pt, Au and at least one chiral ligand selected from phosphino, amino and / or amino-phosphino species, preferably DIOP, BINAP Monophos or TMBTP.
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Description

technical field

[0001] The present invention relates to novel catalytic hybrid inorganic / polymer materials, especially catalytic hybrid inorganic / polymer membranes, which exhibit high selectivity, activity, stability, reusability and Low metal leaching. More specifically, the present invention relates to the manufacture of low-cost hybrid materials of the polyvinyl alcohol type, especially membranes, and to the immobilization of selective catalysts on said materials, to the production of catalytic materials exhibiting the above specific properties, their reactors Assemblies in and their use in chemical processes. The use of such materials is particularly useful for, but not limited to, the asymmetric hydrogenation of prochiral, unsaturated organic substrates. Background technique

[0002] Sustainable, ie cost-effective and environmentally friendly, highly selective process development for the production of fine chemicals (pharmaceuticals, agrochemicals, fragrances, etc.) i...

Claims

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