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.:
Date of Patent:
Mar. 10, 1981
Filed:
Aug. 13, 1979
Applicant:
Inventor:
Lawrence W Gosser, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
260385 ; 585455 ; 585458 ;
Abstract
Process for preparing 2-t-alkylanthracene, which process comprises contacting and reacting, with good mixing, at a temperature of at least 110.degree. C., anthracene and a branched-chain alkylating agent, the alkylating moiety of which contains at least four carbon atoms, in the presence of a catalyst selected from hydrocarbonsulfonic acids which are free of nonaromatic unsaturation, organic carboxylic acids having a K.sub.a of 0.6 to 0.001, acid zeolites, amorphous silica-aluminas, and polymeric arenesulfonic acid resins, to give a product mixture of which the major constituent is 2-t-alkylanthracene.