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. 11, 1993
Filed:
Feb. 10, 1992
Applicant:
Inventors:
Assignee:
Nippon Shokubai Co., Ltd., Osaka, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564 98 ;
Abstract
A method for the production of N-(2-chloroethyl) methanesulfonamide of high purity, which method comprises causing methanesulfonyl chloride to react with ethylene imine in the presence of ethylene dichloride and then distilling there resultant reaction mixture thereby separating therefrom N-(2-chloroethyl) methanesulfonamide, if necessary subjecting the resultant reaction mixture to extraction from water, separating the aqueous layer consequently formed, and subjecting the organic layer resulting from said extraction to distillation thereby separating N-(2-chloroetyl) methanesulfonamide.