An Efficient Homogeneous Chloro–Aluminum–[N2O2] Catalyst for the Coupling of Epoxides with Carbon Dioxide. Issue 26 (8th August 2013)

• Record Type: Journal Article
• Authors: Fuchs, Monica A.; Altesleben, Christiane; Zevaco, Thomas A.; Dinjus, Eckhard
• Is Part Of: European journal of inorganic chemistry. Issue 26(2013)
• Page Start: 4541
• Page End: 4545
• Publication Date: 2013-08-08
• Subjects: Carbon dioxide fixation -- Homogeneous catalysis -- Aluminum -- Copolymerization -- N, O ligands; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201300634
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: The coupling reaction of epoxides and CO2 is in the focus of many research activities in academia as well as in the industry. In this contribution we report on a versatile aluminum‐based homogeneous catalyst utilizing an easy‐to‐synthesize N2 O2 ligand system in combination with various cocatalysts, all of them producing pure alternating poly(cyclohexene carbonate)s with Mn values in the range 10000–15000 g mol –1 . This system also efficiently catalyzes the formation of propylene carbonate. Abstract : A new homogeneous aluminum catalyst based on a N2 O2 ligand obtained from diethyl ethoxymethylenemalonate was used in the conversion of epoxides with carbon dioxide. Copolymerization with cyclohexene oxide led to alternating polycarbonates in the presence of a cocatalyst even at only 2 bar CO2 pressure. Propylene oxide afforded selectively the corresponding cyclic carbonate in high yields.