Method For Ammonolysis Of Bromoalkanoic Acids

Abstract: The invention relates mainly to a method for producing ?-aminoalkanoic acid of formula NH2-(CH2)n-COOH, in which n is an integer between 9 and 11, by reacting the corresponding ?-bromoalkanoic acid with ammonia, comprising the following steps: i) reacting the ?-bromoalkanoic acid with an aqueous solution of excess ammonia, and ii) separating the ?-aminoalkanoic acid that is formed from the reaction mixture, characterised in that the aqueous solution of ammonia has a concentration of 35 to 70 wt% and in that step i) is carried out at a pressure higher than atmospheric pressure, between 0.11 and 2.0 MPa absolute pressure.

Patent Information

Application #

Filing Date

26 July 2023

Publication Number

49/2023

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

ARKEMA FRANCE

420 rue d'Estienne d'Orves 92700 COLOMBES

Inventors

1. DEVAUX, Jean-François

CRRA (ARKEMA) Rue Henri Moissan CS 42063 69491 PIERRE-BENITE CEDEX

2. PEES, Bernard

MARSEILLE (ARKEMA) - PLANT 123, bd de la Millière CS 90108 13374 MARSEILLE CEDEX 11

Specification

Documents

Application Documents

#	Name	Date
1	202317050374-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [26-07-2023(online)].pdf	2023-07-26
2	202317050374-STATEMENT OF UNDERTAKING (FORM 3) [26-07-2023(online)].pdf	2023-07-26
3	202317050374-PRIORITY DOCUMENTS [26-07-2023(online)].pdf	2023-07-26
4	202317050374-POWER OF AUTHORITY [26-07-2023(online)].pdf	2023-07-26
5	202317050374-FORM 1 [26-07-2023(online)].pdf	2023-07-26
6	202317050374-DECLARATION OF INVENTORSHIP (FORM 5) [26-07-2023(online)].pdf	2023-07-26
7	202317050374-COMPLETE SPECIFICATION [26-07-2023(online)].pdf	2023-07-26
8	202317050374-Proof of Right [10-11-2023(online)].pdf	2023-11-10
9	202317050374-FORM 3 [10-11-2023(online)].pdf	2023-11-10
10	202317050374-FORM 18 [16-01-2025(online)].pdf	2025-01-16