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:
Aug. 01, 2000
Filed:
Sep. 11, 1998
Applicant:
Inventors:
Matthew P McWilliams, Sewell, NJ (US);
Chester Sapino, Sewell, NJ (US);
Assignee:
Johnson Matthey Public Limited Company, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564 33 ;
Abstract
A process for the preparation of a nitrosourea derivative, in particular 1,2-bis(2-chloroethyl)-1-nitrosourea, comprises reacting a non-nitrosated urea derivative with a metal nitrite in a two-phase solvent system comprising an aqueous acid and a non-miscible organic solvent.