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:
Nov. 13, 2012
Filed:
Apr. 06, 2009
Andreas Job, Köln, DE;
Denys Baskakov, Leverkusen, DE;
Ralf Krahwinkel, Langenfeld, DE;
Antje Hieronymi, Köln, DE;
Andreas Job, Köln, DE;
Denys Baskakov, Leverkusen, DE;
Ralf Krahwinkel, Langenfeld, DE;
Antje Hieronymi, Köln, DE;
Saltigo GmbH, Langenfeld, DE (US);
Abstract
What is described is a process for preparing compounds of the general formula (I) in which R, Rand Rindependently of one another represent hydrogen, an alkyl group or an aryl group, wherein compounds of the general formula (II) in which Rand Rhave the meaning given for formula (I),are reacted with an alkylating agent of the general formula (III)RX  (III),in which X represents a halogen atom and Rhas the meaning given for formula (I), if appropriate in a solvent.