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:
Jan. 11, 2005
Filed:
Jul. 25, 2001
Applicants:
Thomas Güthner, Trostberg, DE;
Bernhard Graml, Garching, DE;
Inventors:
Thomas Güthner, Trostberg, DE;
Bernhard Graml, Garching, DE;
Assignee:
Degussa AG, Trostberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D23926 ;
U.S. Cl.
CPC ...
Abstract
A process is described for preparing 4-methylpyrimidine by reacting a 4,4-dialkoxy-2-butanone with a formamidine salt, optionally in the presence of a solvent or diluent, at temperatures of from 80 to 180° C. In this way, 4-methylpyrimidine can be obtained in a substantially simpler manner and at the same time in higher yields than are possible by means of existing processes.