公开(公告)号：US20230391712A1

公开(公告)日：2023-12-07

申请号：US18228658

申请日：2022-01-31

Applicant: Arkema France

Inventor： Jean-François DEVAUX ,  Bernard PEES

IPC: C07C227/08 ,  C07C227/40

CPC classification number: C07C227/08 ,  C07C227/40

Abstract: A process for the manufacture of ω-aminoalkanoic acid of formula NH2—(CH2)n—COOH, in which n is an integer from 9 to 11, by reaction of the corresponding ω-bromoalkanoic acid with ammonia, including the following stages: i) reaction of the ω-bromoalkanoic acid with an aqueous excess ammonia solution, and ii) separation of the ω-aminoalkanoic acid formed from the reaction mixture. The aqueous ammonia solution exhibits a concentration of 35% to 70% by weight, and stage i) is carried out under a pressure greater than atmospheric pressure, from 0.11 to 2.0 MPa absolute.

公开(公告)号：US20160185705A1

公开(公告)日：2016-06-30

申请号：US14909775

申请日：2014-08-07

Applicant: ARKEMA FRANCE

Inventor： Bernard BERTHE ,  Bernard PEES ,  Philippe ANNOOT ,  Jean-Luc DUBOIS ,  Ornella ZOVI

IPC: C07C51/363 ,  C08G69/08 ,  C07C227/08

Abstract: A process for synthesizing a product of formula Br—(CH2)n—R by hydrobromination, by reacting: a reagent of formula (I) R1-CH═CH—R2 in which R1 and R2, identical or different, are chosen from H or an alkyl radical comprising 1 to 30 carbon atoms, which is saturated or unsaturated, linear or branched, functionalized or non-functionalized, with a molar excess of HBr relative to the reagent of formula (I), in the presence of a radical initiator, and optionally in the presence of at least one solvent, said process including a step A of mixing at least reagent I and the HBr, each of the latter arriving in the form of a flow of liquid into a mixing device dA.

Abstract translation: 通过氢溴酸合成式Br-（CH2）n-R的产物的方法，通过使式（I）的试剂R1-CH = CH-R2反应，其中R1和R2相同或不同，选自H 或包含1至30个碳原子的烷基，其在自由基引发剂存在下是饱和或不饱和的，官能化或非官能化的，具有相对于式（I）的试剂的摩尔过量的HBr ，并且任选地在至少一种溶剂的存在下，所述方法包括将至少试剂I和HBr混合的步骤A，后者各自以液体流的形式进入混合装置dA。