Open AccessNovel Homogeneous and Heterogeneous Catalysts for the Synthesis of Formic-Acid Derivatives from CO₂
Author(s) -
Oliver Kröcher,
René A. Köppel,
A. Baiker
Publication year - 1997
Publication title -
chimia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.387
H-Index - 55
eISSN - 2673-2424
pISSN - 0009-4293
DOI - 10.2533/chimia.1997.48
Subject(s) - catalysis , formic acid , selectivity , phosphine , chemistry , homogeneous , ruthenium , denticity , turnover number , formate , heterogeneous catalysis , homogeneous catalysis , inorganic chemistry , organic chemistry , crystal structure , physics , thermodynamics
Recently developed homogeneous and heterogeneous catalysts for the synthesis of N,N-dimethylformamide (DMF) and methyl formate (MF) from carbon dioxide are compared with respect to their catalytic performance. Among all catalysts known today, ruthenium catalysts with bidentate phosphine ligands show best performance in the synthesis of DMF and MF, affording turnover frequencies of 360000 h-1 at 100% selectivity (DMF) and 830 h-1 (MF), respectively. Among the heterogeneous catalysts, a hybrid gel made up of [RuCl2{P(CH3)2(CH2)2Si(OC2H5)3}3] incorporated into a silica matrix exhibits best performance, reaching turnover frequencies of 1860 h-1 for DMF and 85 h-1 for MF synthesis, respectively.