Highly Enantioselective Catalytic System for Asymmetric Copolymerization of Carbon Dioxide and Cyclohexene Oxide. Issue 39 (11th August 2014)

• Record Type: Journal Article
• Authors: Hua, Yuan‐Zhao; Lu, Liu‐Jie; Huang, Pei‐Jin; Wei, Dong‐Hui; Tang, Ming‐Sheng; Wang, Min‐Can; Chang, Jun‐Biao
• Is Part Of: Chemistry. Volume 20:Issue 39(2014)
• Page Start: 12394
• Page End: 12398
• Publication Date: 2014-08-11
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201403088
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A new ligand can be easily prepared, and its intramolecular dinuclear zinc complexes act as a high performance catalyst for the asymmetric alternating copolymerization of cyclohexene oxide and CO₂ under very mild conditions (1 atm CO₂, room temperature), affording completely alternating polycarbonates with up to 93.8 % enantiomeric excess (<italic>ee</italic>) and 98 % yield. A high <italic>M</italic>_n value of 28 600 and a relatively narrow polydispersity (<italic>M</italic>_w/<italic>M</italic>_n ratio) of 1.43 were also achieved.</p> </abstract>