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Efficient Conversion of Carbon Dioxide with Si‐Based Reducing Agents Catalyzed by Metal Complexes and Salts
Author(s) -
Motokura Ken,
Pramudita Ria Ayu
Publication year - 2019
Publication title -
the chemical record
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.61
H-Index - 78
eISSN - 1528-0691
pISSN - 1527-8999
DOI - 10.1002/tcr.201800076
Subject(s) - carbon dioxide , catalysis , metal , reducing agent , chemistry , carbon fibers , inorganic chemistry , materials science , combinatorial chemistry , organic chemistry , composite number , composite material
Homogeneous metal complex and salt catalysts were developed for the reductive transformation of CO 2 with Si‐based reducing agents. Cu‐bisphosphine complexes were found to be excellent catalysts for the hydrosilylation of CO 2 with polymethylhydrosiloxane (PMHS). The Cu complexes also showed high catalytic activity and a wide substrate scope for formamide synthesis from amines, CO 2 , and PMHS. Simple fluoride salts such as tetrabutylammonium fluoride acted as good catalysts for the reductive conversion of CO 2 to formic acid in the presence of hydrosilane, disilane, and metallic Si. Based on the kinetics, isotopic experiments, and in‐situ NMR measurements, the reaction mechanism for both catalyst systems, the Cu complex and the fluoride salt, have been proposed.