Shvo-Catalyzed Hydrogenation of CO<sub>2</sub> in the Presence or Absence of Ionic Liquids for Tandem Reactions
Qiongyao Chen, Xingsi Kang, Xuehua Zhang, Yanwei Cao, Lin He
Abstract
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 1H 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.
Topics & Concepts
HydroformylationCatalysisIonic liquidFormamidesChemistryTandemDissociation (chemistry)FormylationOrganic chemistryPrimary (astronomy)Materials scienceRhodiumComposite materialAstronomyPhysicsCarbon dioxide utilization in catalysisCO2 Reduction Techniques and CatalystsIonic liquids properties and applications