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. 19, 2020
Filed:
May. 15, 2017
Applicant:
Multichem Ip Llc, Clearwater, FL (US);
Inventors:
Gabriele Segalla, Peschiera del Garda, IT;
Marco Segalla, Carpiano, IT;
Assignee:
MULTICHEM IP LLC, Clearwater, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 213/803 (2006.01); B01D 3/10 (2006.01);
U.S. Cl.
CPC ...
C07D 213/803 (2013.01); B01D 3/10 (2013.01); B01D 2257/70 (2013.01);
Abstract
Disclosed is a process for preparing menthyl nicotinate with high purity and yield, which consists of a transesterification reaction of menthol with a C-Calkyl ester of the nicotinic acid, in the presence of an alkaline catalyst belonging to the class of C-Calkoxides, linear or branched, and a vacuum distillation of the mixture of reaction products, in the presence of activated carbons.