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. 10, 2016
Filed:
Jun. 03, 2010
Applicants:
Hans Lammers, Arnhem, NL;
Martin Heus, Arnhem, NL;
Tjerk Oedse Boonstra, Duiven, NL;
Adrianus Maria Reichwein, Velp, NL;
Inventors:
Hans Lammers, Arnhem, NL;
Martin Heus, Arnhem, NL;
Tjerk Oedse Boonstra, Duiven, NL;
Adrianus Maria Reichwein, Velp, NL;
Assignee:
AKZO NOBEL CHEMICALS INTERNATIONAL B.V., Amersfoort, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 227/18 (2006.01); C07C 253/30 (2006.01); C07C 253/08 (2006.01); C07C 229/24 (2006.01);
U.S. Cl.
CPC ...
C07C 253/08 (2013.01); C07C 229/24 (2013.01);
Abstract
The present invention relates to a process comprising the reaction of a cyanide with an amino acid and an aldehyde, characterized in that the cyanide is a cyanide salt, the amino acid is aspartic acid and/or glutamic acid in the acidic form, and the process is performed under acidic pH by the addition of between 0 and 1 equivalent of an acid based on the amount of aspartic or glutamic acid.