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. 22, 1987
Filed:
Oct. 02, 1985
Applicant:
Inventors:
Florin Seng, Bergisch-Gladbach, DE;
Josef Bremen, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564343 ; 544175 ; 546237 ;
Abstract
.beta.-Aminoethyl ketones are obtained in a low-polluting manner by Mannich condensation of an aryl ketone having an acidic H with an aldehyde and ammonia or an amine by carrying out the reaction in organic nitriles in the presence of a sulphonic acid or in gycol either in the presence of a sulphonic acid or sulphuric acid.