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:
Aug. 20, 2019
Filed:
Sep. 08, 2015
Instituto Mexicano Del Petróleo, Mexico City, MX;
Rafael Martínez Palou, Mexico City, MX;
Ricardo Cerón Camacho, Mexico City, MX;
Alba Adriana Vallejo Cardona, Mexico City, MX;
Romeo Jesús Reyes Ávila, Mexico City, MX;
Juan de la Cruz Clavel Lopez, Mexico City, MX;
César Bernal Huicochea, Mexico City, MX;
Mario Ramiréz De Santiago, Mexico City, MX;
Jorge Arturo Aburto Anell, Mexico City, MX;
Instituto Mexicano Del Petroleo, Mexico City, MX;
Abstract
Embodiments of the present invention provide for efficient methods and processes for preparing ionic amino acid esters from a specific synthesis route. The disclosed embodiments consist of a single reaction step: reacting a natural or synthetic unprotected amino acid with an aliphatic, branched or aromatic fatty alcohol of even or odd number of carbon atoms from 6 to 20 with or without unsaturation(s), in stoichiometric amounts, in the presence of an organic acid (HX) like carboxylate, mesylate, tosylate or sulfonate, employed as catalyst and under conventional heating (CC) of 1 to 3 hours at a temperature in the range of approximately 60 to 150° C. and pressure the range of approximately 0 to approximately 250 psi; the product obtained is cooled and recrystallized from ethanol.