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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.:

US 4163848 B1

PDFFull Text
Date of Patent:
Aug. 07, 1979

Filed:

Aug. 08, 1978

Process for the production of 2-alkyl- or

Applicant:
Inventors:

Joseph T Blackwell, III, Greensboro, NC (US);

John T Gupton, Jamestown, NC (US);

Teruko U Miyazaki, Greensboro, NC (US);

James B Nabors, Baton Rouge, LA (US);

Joseph R Pociask, Greensboro, NC (US);

Assignee:

Ciba-Geigy Corporation, Ardsley, NY (US);

Attorney:

Jorda; Karl F.

Primary Examiner:

Donald G Daus

Assistant Examiner:

James H Turnipseed

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
544319 ; 544 97 ;
Abstract

Production of 2-alkyl- or cycloalkyl-4-methyl-6-hydroxypyrimidines by first neutralizing an alkyl imidate ester hydrochloride with a base in the presence of a water-immiscible solvent for the alkyl imidate ester to be freed thereby; condensing the alkyl imidate ester with diketene to form an oxazinone intermediate, which is then reacted in organic solution with gaseous ammonia and recovering the desired substituted 6-hydroxypyrimidine.

Find Patent Forward Citations

Blackwell, III, Joseph. (1979). Process for the production of 2-alkyl- or (U.S. Patent No. 4163848). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4163848

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

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