Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 88, Issue 8, Pages 5044-5051Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.2c02321
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This study reveals the role of ionic liquids (ILs) in promoting the dissociation of Shvo's catalyst and enhancing the rate of carbon monoxide (CO) production. These CO molecules are then used in the tandem hydroformylation-reduction of alkenes, resulting in the production of valuable alcohols. Additionally, the absence of ILs allows for the formation of formamides through N-formylation of primary or secondary amines.
Ionic liquids (ILs) have been widely used in transition metal-catalyzed processes, but the precise behavior of ILs and catalysts in these reactions is unknown. Herein, the role of ILs and the interaction pattern between Shvo's catalyst and ILs have been revealed with characterization by H-1 NMR and crystallography based on the catalytic hydrogenation of CO2. ILs promote the dissociation of Shvo's catalyst and enhance the rate of production of CO. The CO that is produced is subsequently used in the tandem hydroformylation-reduction of alkenes to produce valuable alcohols. In the absence of ILs, formamides can be obtained by N-formylation of most primary or secondary amines.
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