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:
Apr. 23, 2019
Filed:
Nov. 18, 2014
Rhodia Operations, Paris, FR;
Philippe Marion, Vernaison, FR;
Didier Morvan, Mornant, FR;
RHODIA OPERATIONS, Paris, FR;
Abstract
Process for the manufacture of an amino ester of formula (I) R—O—C(O)—(CH)—NH(I) in which n is an integer from 10 to 15 from an unsaturated ester responding to formula (II) R—O—C(O)—(CH)—CH═CH—R(II) in which Ris either H or a saturated alkyl group containing from 1 to 5 carbon atoms; Ris either H or an alkyl group containing from 1 to 10 carbon atoms, either saturated or containing 1 or 2 unsaturations and bearing optionally a hydroxyl, a carboxylic or an ester group, and m is equal to 7, 8, 9, 10 or 11; said process comprising: submitting the unsaturated ester of formula (II) to a catalytic cross-metathesis reaction with a pentenenitrile chosen among 2-pentenenitrile or 3-pentenenitrile in order to obtain a ester-nitrile responding to formula (III) R—O—C(O)—(CH)—CH═CH—(CH)—CN (III) in which m is equal to 7, 8, 9, 10 or 11 and p is equal to 0 or 1, and submitting the obtained ester-nitrile of formula (III) to an hydrogenation in order to obtain the amino ester of formula (I).