Ruthenium‐Catalyzed Hydroformylation of Alkenes by using Carbon Dioxide as the Carbon Monoxide Source in the Presence of Ionic Liquids. Issue 8 (7th July 2014)

• Record Type: Journal Article
• Authors: Ali, Meher; Gual, Aitor; Ebeling, Günter; Dupont, Jairton
• Is Part Of: ChemCatChem. Volume 6:Issue 8(2014:Aug.)
• Page Start: 2224
• Page End: 2228
• Publication Date: 2014-07-07
• Subjects: Catalysis -- Periodicals; 541.39505
• DOI: 10.1002/cctc.201402226
• Languages: English
• ISSNs: 1867-3880

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The reaction of [BMI<bold>⋅</bold>Cl] (BMI=1‐butyl‐3‐methylimidazolium) or [BMMI<bold>⋅</bold>Cl] (BMMI=3‐butyl‐1, 2‐dimethylimidazolium) with Ru₃(CO)₁₂ generates Ru–hydride–carbonyl–carbene species in situ that are efficient catalysts for a reverse water gas shift/hydroformylation/hydrogenation cascade reaction. The addition of H₃PO₄ increased the catalytic activity of the first step (i.e., the hydrogenation of CO₂ to CO). Under the optimized reaction conditions [120 °C and 6.0 MPa CO₂/H₂ (1:1) for 17 h], cyclohexene and 2, 2‐disubstituted alkenes were easily functionalized to alcohols through sequential hydroformylation/carbonyl reduction.</p> </abstract>