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:
May. 10, 2005
Filed:
Jan. 24, 2001
Applicants:
Paul Hanselmann, Brig-Glis, CH;
Stefan Hildbrand, Riehen, CH;
Etienne Sterren, Glis, CH;
Inventors:
Assignee:
Lonza AG, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D307/34 ; C07C233/65 ; C07C233/04 ;
U.S. Cl.
CPC ...
Abstract
The method for producing N-alkoxy-N-alkylamides of general formula (I):wherein Rrepresents C-alkyl, cyclo-C-alkyl, cyclo-C-alkenyl, C-alkenyl, aryl, aryl-C-alkyl, heteroaryl, heteroaryl-C-alkyl or heterocyclyl; and Rrepresents Calkyl. In the process, an ester of general formula (II): RCOOR, wherein Rhas the above-mentioned meaning, and Rrepresents C-alkyl, 4-nitrophenyl, 2,4-dinitrophenyl, succinimido or benzotriazole-1-yl, is reacted with hydroxylamine, a hydroxylamine derivative or with a hydroxylammonium salt, and the reaction product is alkylated in the presence of a phase transfer catalyst.