[EN] PROCESS FOR PRODUCING AN AMINE IN A SOLVENT SYSTEM CONTAINING WATER<br/>[FR] PROCÉDÉ DE PRODUCTION D'UNE AMINE DANS UN SYSTÈME DE SOLVANT CONTENANT DE L'EAU
申请人:RHODIA OPERATIONS
公开号:WO2019174221A1
公开(公告)日:2019-09-19
The present invention pertains to a process for producing an amine from an aldehyde or a precursor thereof, or a ketone in a solvent system containing water. The process is more environmentally friendly and permits to obtain an amine compound under mild reaction conditions.
Reductive amination of 5-acetoxymethylfurfural over Pt/Al2O3 catalyst in a flow reactor
作者:Alexey L. Nuzhdin、Pavel A. Simonov、Galina A. Bukhtiyarova、Ilia V. Eltsov、Valerii I. Bukhtiyarov
DOI:10.1016/j.mcat.2020.111297
日期:2021.1
and Pt catalysts in the hydrogenation of imine obtained by reaction of AMF with aniline showed that Pt-based catalysts (both Pt/Al2O3 and Pt/C) are highly active and provide high selectivity and stability, while Pd and Au nanoparticles supported on γ-alumina and carbon show low selectivity. A wide range of N-substituted 5-(acetoxymethyl)-2-furfuryl amines was synthesized in good to excellent yields
氨甲基羟甲基呋喃衍生物具有药学活性。在这项工作中,提出了用于合成N-取代的5-(乙酰氧基甲基)-2-糠基胺的两步一锅法,该步骤包括两个连续的反应:5-乙酰氧基甲基糠醛(AMF)与伯胺的缩合以及在流动反应器中用氢在负载的金属催化剂上用氢还原得到的亚胺。AMF与苯胺反应制得的亚胺加氢中Au,Pd和Pt催化剂的性能比较表明,Pt基催化剂(均为Pt / Al 2 O 3)(Pt / C)和Pt / C)具有很高的活性,并具有较高的选择性和稳定性,而负载在γ-氧化铝和碳上的Pd和Au纳米颗粒的选择性较低。使用Pt / Al 2 O 3催化剂和甲醇作为溶剂,以良好至极佳的收率合成了多种N-取代的5-(乙酰氧基甲基)-2-糠胺。
Two-Step One-Pot Reductive Amination of Furanic Aldehydes Using CuAlOx Catalyst in a Flow Reactor
作者:Alexey L. Nuzhdin、Marina V. Bukhtiyarova、Valerii I. Bukhtiyarov
DOI:10.3390/molecules25204771
日期:——
two-step process, which includes the condensation of furanic aldehydes (HMF and 5-acetoxymethylfurfural) with primary amines in methanol on the first step and the reduction of obtained imines with hydrogen in a flow reactor over CuAlOx catalyst derived fromlayereddoublehydroxide on the second step. This process does not require isolation and purification of intermediate imines and can be used to
Reductive Amination, Hydrogenation and Hydrodeoxygenation of 5‐Hydroxymethylfurfural using Silica‐supported Cobalt‐ Nanoparticles
作者:Vishwas G. Chandrashekhar、Kishore Natte、Asma M. Alenad、Ahmad S. Alshammari、Carsten Kreyenschulte、Rajenahally V. Jagadeesh
DOI:10.1002/cctc.202101234
日期:2022.1.10
Valorization of HMF by cobalt-nanoparticles catalyzed reductiveamination, hydrogenation and hydrodeoxygenation processes produce bio-based amines and heterocycles as well as 2,5-bis(hydroxymethyl)furan, (5-methylfuran-2-yl)methanol.
Reductive Amination of 5-Hydroxymethylfurfural by the Hydrogenation of Intermediate Imines in the Presence of a Pt/Al2O3 Catalyst in a Flow Reactor
作者:A. L. Nuzhdin、P. A. Simonov、V. I. Bukhtiyarov
DOI:10.1134/s0023158421040091
日期:2021.7
Abstract The catalytic properties of a platinum catalyst supported on γ-alumina in the hydrogenation of imines formed during the condensation of 5-hydroxymethylfurfural (HMF) with primary amines in methanol have been studied. The reaction has been run in a flow reactor at a hydrogen pressure of 5 bar and a temperature of 15–65ºC. It has been found that the reductive amination of HMF with n-hexylamine;