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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 8802897 B1

PDFFull Text
Date of Patent:
Aug. 12, 2014

Filed:

Dec. 12, 2012

Method for preparing cyclic ketones

Applicant:

Alessa Gmbh, Frankfurt, DE;

Inventors:

Doris Neumann, Offenbach, DE;

Joachim Ritzer, Rodenbach, DE;

Gunther Effenberger, Bad Vilbel, DE;

Assignee:

Allessa GmbH, Frankfurt, DE;

Attorneys:

Michael W. Ferrell

Ferrells, PLLC

Anna L. Kinney

Primary Examiner:

Sikarl Witherspoon

Int. Cl.
CPC ...
C07C 45/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for hydrogenating optionally substituted phenols with one hydroxyl group to cyclohexanones over modified, palladium-comprising supported catalysts. This is possible surprisingly in selected alcoholic solvents with high selectivity. Here it is even possible to recycle the catalysts employed, which hitherto has only been possible with considerable loss of selectivity.

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Neumann, Doris. (2014). Method for preparing cyclic ketones (U.S. Patent No. 8802897). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8802897

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