Eco-Friendly Homo- and Cross-Etherification of Benzyl Alcohols Catalyzed by Iron(II/III) Chloride in Propylene Carbonate as a Green and Recyclable Solvent
Hanen Slimi, Zaineb Litim, Thierry Ollevier, Jamil Kraı̈em
Abstract
High Resolution Image Download MS PowerPoint Slide A new catalytic approach toward the symmetrical and nonsymmetrical etherification of benzyl alcohols was developed. The symmetrical etherification reaction was carried out in the presence of FeCl 3 ·6H 2 O (5 mol %) as the catalyst and propylene carbonate as a green and recyclable solvent and led to the corresponding symmetrical ethers in 53 to 91% yields. The nonsymmetrical etherification of benzylic alcohols was achieved by using FeCl 2 ·4H 2 O (10 mol %) in the presence of a pyridine bis-thiazoline ligand (12 mol %) and allowed for high selectivity and in 52 to 89% yields. These methods take advantage of eco-friendly conditions.
Topics & Concepts
Propylene carbonateCatalysisChemistryPyridineSolventSelectivityEnvironmentally friendlyOrganic chemistryCarbonateChlorideElectrodeBiologyElectrochemistryEcologyPhysical chemistryCarbon dioxide utilization in catalysisSulfur-Based Synthesis TechniquesChemical Synthesis and Reactions