title: Robust bifunctional aluminium-salen catalysts for the preparation of cyclic carbonates from carbon dioxide and epoxides.
abstract: Two new one-component aluminium-based catalysts for the reaction between epoxides and carbon dioxide have been prepared. The catalysts are composed of aluminium-salen chloride complexes with trialkylammonium groups directly attached to the aromatic rings of the salen ligand. With terminal epoxides, the catalysts induced the formation of cyclic carbonates under mild reaction conditions (25-35 °C; 1-10 bar carbon dioxide pressure). However, with cyclohexene oxide under the same reaction conditions, the same catalysts induced the formation of polycarbonate. The catalysts could be recovered from the reaction mixture and reused.
authors.affiliation: Nesmeyanov Institute of Organoelement Compounds, Moscow 19991, Russia.
authors.forename: Yuri A
authors.initials: YA
authors.lastname: Rulev
authors.affiliation: Nesmeyanov Institute of Organoelement Compounds, Moscow 19991, Russia.
authors.forename: Zalina
authors.initials: Z
authors.lastname: Gugkaeva
authors.affiliation: Nesmeyanov Institute of Organoelement Compounds, Moscow 19991, Russia.
authors.forename: Victor I
authors.initials: VI
authors.lastname: Maleev
authors.affiliation: Green Chemistry Centre of Excellence, Department of Chemistry, University of York, Heslington, York, YO10 5DD, UK.
authors.forename: Michael
authors.initials: M
authors.lastname: North
authors.affiliation: Nesmeyanov Institute of Organoelement Compounds, Moscow 19991, Russia.
authors.forename: Yuri N
authors.initials: YN
authors.lastname: Belokon
keywords: aluminium; carbon dioxide; cyclic carbonate; epoxide; salen