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:
Dec. 23, 2008
Filed:
Jul. 05, 2006
Andreas Meudt, Hofheim, DE;
Claudius Boehm, Frankfurt am Main, DE;
Andreas Meudt, Hofheim, DE;
Claudius Boehm, Frankfurt am Main, DE;
Archimica GmbH, Frankfurt am Main, DE;
Abstract
A method for producing unprotected or carbamate-protected amines of formulae (II) and (III) or R—NH(II) or R—NHCOR(III) by reacting hydroxamic acids of formula (I) (RCONHOH) with a) alkylpliosphonic acid anhydrite's, b) alcohol ROH and c) optionally with a base, at a temperature ranging from 100 to +120°C., wherein the hydroxainic acid (I) is produced prior to or during reacting (in situ) and Ris an optionally substituted linear or branched C-Calkyl radical, substituted C-Ccycloalkyl, alkenyl, aryl or heteroaryl radical and Ris an open-chain, cyclic or branched allyl, aryl or Cto C-alkyl radicals, or aryloxy, allyloxy or alkoxy radical possibly substituted with open-chain, cyclic or branched Cto C-alkyl radicals.