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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7087548 B1

PDFFull Text
Date of Patent:
Aug. 08, 2006

Filed:

Oct. 24, 2002

Preparation and use of a heterogeneous rhodium catalyst for the hydrogenation of a double bond of an α-β-unsaturated carbonyl compound

Applicants:

Oreste Piccolo, Sirtori, IT;

Alessandra Verrazzani, Pisa, IT;

Inventors:

Oreste Piccolo, Sirtori, IT;

Alessandra Verrazzani, Pisa, IT;

Assignee:

Chemi Spa, Milan, IT;

Attorney:

Darby & Darby

Primary Examiner:

J A Lorengo

Assistant Examiner:

Jennine Brown

Int. Cl.
CPC ...
B01J 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A process for preparing an Rh-based catalytic system heterogenized on an organic or mineral support, characterized in that: a) a rhodium derivative with a valency state>0 is reduced in an ether or aromatic solvent and in the presence of a compound chosen from the group consisting of lipophilic tertiary amines, lipophilic tertiary amides and lipophilic quaternary ammonium salts, and b) the mixture thus obtained is adsorbed onto a suitable organic or mineral support. Use of the abovementioned catalytic system to hydrogenate a C═C double bond of an α,β-unsaturated carbonyl compound.

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