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. 12, 1989
Filed:
Jul. 30, 1985
Applicant:
Inventors:
Bertrand Castro, Perols, FR;
Jean Fehrentz, Montpellier, FR;
Assignee:
Sanofi, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564343 ; 564302 ; 564340 ; 564402 ;
Abstract
The present invention relates to a process for the preparation of alpha alkyl amino aldehydes of formula ##STR1## in which R is alkyl or aralkyl possibly substituted, characterized in that N,O-dimethylhydroxylamine is reacted, in a basic medium, on a blocked amine ester of an amino acid of formula ##STR2## and in that the product obtained is reduced with the aid of a hydride such as the double hydride of lithium-aluminum.