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:
Jul. 09, 1991
Filed:
Apr. 27, 1989
Applicant:
Inventors:
Arthur C Bayer, Ocean Springs, MS (US);
Charles U Pittman, Jr, Tuscaloosa, AL (US);
Lichang Wang, Guangzhou, CN;
Earl G Alley, Starkville, MS (US);
Anthony C Maliyackel, Cincinnati, OH (US);
Assignee:
First Chemical Corporation, Pascagoula, MS (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564401 ; 564395 ;
Abstract
The selective N-alkylation of anilines comprising providing a mixture of a lower alkanol and an aniline, exposing said mixture to a temperature of from 250.degree. C. to 350.degree. C. in the presence of an acidic zeolite having a pore size of from 6 to 8 angstroms with a three-dimensional tubular shape, such as S-115 zeolite, is described. These zeolites are predominantly selective to the formation of N-alkylanilines.