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. 30, 1976
Filed:
Jan. 02, 1974
Applicant:
Inventors:
Albert Edward Kaye, Manchester, EN;
Alan Cyril Tucker, Manchester, EN;
Assignee:
Imperial Chemical Industries Limited, London, EN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 2602 / ;
Abstract
Reaction of a 2-amino-, 2-alkylamino- or 2-dialkylamino-4-hydroxypyrimidine, preferably also containing a methyl group at the 6 position, with an aldehyde R--CHO in presence of hydrogen and a hydrogenation catalyst introduces an alkyl group R--CH.sub.2 -- into the 5 position. The reaction is preferably carried out under superatmospheric pressure at a temperature between 80.degree. and 180.degree.C and is aided by metal salts, acids, amines, amine salts or basic ion-exchange resins.