Synthesis of N,N-dimethylformamide from carbon dioxide in aqueous biphasic solvent systems

被引：11

作者：

Kuhlmann, R. ^{[1
]}

Schmitz, S. ^{[1
]}

Hassmann, K. ^{[1
]}

Pruellage, A. ^{[1
]}

Behr, A. ^{[1
]}

机构：

[1] Tech Univ Dortmund, Dept Biochem & Chem Engn, Chair Tech Chem, Emil Figgestr 66, D-44227 Dortmund, Germany

来源：

APPLIED CATALYSIS A-GENERAL | 2017年 / 539卷

关键词：

Carbon dioxide; Hydrogenation; Formamide; Homogeneous catalysis; Catalyst recycling; HOMOGENEOUS HYDROGENATION; CATALYTIC-HYDROGENATION; RUTHENIUM COMPLEXES; CAPTURE; CO2; DIMETHYLFORMAMIDE; BICARBONATE; CHEMICALS;

D O I：

10.1016/j.apcata.2017.03.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper presents the homogeneous catalyzed hydrogenation of carbon dioxide to N,N-dimethylformamide (DMF) with an in-situ generated ruthenium catalyst based on RuCl3 x H2O and the phosphine ligand 2,2'-bis(diphenylphosphinomethyl)-1,1'-biphenyl (BISBI). Investigations showed that the complex formation of an active species requires the presence of an amine. The catalyst was recycled by immobilization in a nonpolar alcoholic solvent while the formed product was extracted in-situ into the aqueous phase. The self-assembling reaction system showed stability for 10 recycling runs without a significant loss of activity resulting in an average yield of 31% DMF at 40 bar and 140 degrees C without the occurrence of any byproducts. Furthermore, a combination of the developed reaction system with ternary amines enables the application of wash amine solutions as carbon dioxide carrier. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：90 / 96

页数：7

共 35 条

[1] Catalysis for the Valorization of Exhaust Carbon: from CO2 to Chemicals, Materials, and Fuels. Technological Use of CO2 [J].