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:
Sep. 02, 1997
Filed:
Jun. 17, 1996
Applicant:
Inventors:
Anna M Castelijns, Beek, NL;
Joannes M Mulders, Geleen, NL;
Assignee:
DSM N.V., Heerleen, NL;
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562874 ;
Abstract
Process for the preparation of N-alkyl-N,O-diacetyl hydroxylamine, for instance N-methyl-N,O-diacetyl hydroxylamine, by catalytic reduction of a nitroalkane, for instance nitromethane, in the presence of acetic anhydride. As catalyst preferably a platinum on alumina catalyst is used. The invention provides a simple one-step process for the preparation of N-alkyl-N,O-diacetyl hydroxylamine in a relatively concentrated reaction medium.