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:
May. 26, 1992
Filed:
May. 12, 1986
Applicant:
Inventor:
Kju H Shin, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564384 ; 564305 ; 564321 ; 564330 ; 564331 ; 564333 ; 564389 ; 564341 ; 564392 ;
Abstract
Novel anilines of the 2,6-dialkyl-4-dialkylaminomethylaniline type are prepared by reacting a secondary amine and an aldehyde with a primary aniline reactant having a free para position and substituents in both ortho positions in the presence of an acid catalyst, the amounts of amine and acid employed being at least equimolar with respect to the amount of aldehyde, and the reaction being conducted by adding the primary aniline reactant to a preformed mixture of the secondary amine, aldehyde, and acid.