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. 04, 2018
Filed:
Oct. 01, 2015
Applicant:
Purac Biochem Bv, Gorinchem, NL;
Inventors:
Bastiaan Jeroen Victor Verkuijl, Gorinchem, NL;
Jurgen Cornelis Henricus Maas, Gorinchem, NL;
Assignee:
PURAC BIOCHEM B.V., Gorinchem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 231/02 (2006.01); C07C 231/16 (2006.01); C07C 231/24 (2006.01); C07C 235/06 (2006.01);
U.S. Cl.
CPC ...
C07C 235/06 (2013.01); C07C 231/02 (2013.01); C07C 231/16 (2013.01); C07C 231/24 (2013.01);
Abstract
A method for the manufacture of N,N-dialkyllactamide, whereby at least one of the compounds selected from the series made of alkyl lactate, lactide and polylactic acid is mixed with dialkylamine in order to form a reaction mixture, under conditions whereby aminolysis takes place in the reaction mixture. The method is characterized in that the reaction mixture further includes a Lewis acid. As a result of the method, N,N-dialkyllactamides can be manufactured in high yields and with high optical purity.