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.

Date of Patent:
Jun. 04, 1996

Filed:

Aug. 15, 1994
Applicant:
Inventor:

Chunshan Song, State College, PA (US);

Assignee:

The Penn State Research Foundation, University Park, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585481 ;
Abstract

An environmentally benign catalytic process for the production of sym-octahydroanthracene (sym-OHA) from sym-octahydrophenanthrene (sym-OHP) by ring-shift isomerization. Proton-form moralenite or partially dealuminated proton-form mordenite are effective catalysts for the selective formation of sym-OHA from sym-OHP. Y-zeolite and metal-ion exchanged Y-zeolites display lower selectivity towards Sym-OHA. The use of certain solvents can further improve the performance of the Y-zeolites and mordenites, particularly the selectivity of Y-zeolite catalysts. The sym-OHA is an useful product and can be converted by existing methods to various anthracene derivatives which are industrial chemicals in demand.


Find Patent Forward Citations

Song, Chunshan. (1996). Zeolite-catalyzed isomerization of sym-octahydrophenanthrene to (U.S. Patent No. 5523505). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5523505

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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