Cycloaddition of CO2 to Epoxides Using a Highly Active Co(III) Complex of Tetraamidomacrocyclic Ligand

Ghosh A; Ramidi P; Pulla S; Sullivan SZ; Collom SL; Gartia Y; Munshi P; Biris AS; Noll BC; Berry BC

Catalysis Letters, Vol.137, No.1-2, 1-7, 2010

DOI10.1007/s10562-010-0325-0 Export Citation

Cycloaddition of CO2 to Epoxides Using a Highly Active Co(III) Complex of Tetraamidomacrocyclic Ligand

Ghosh A, Ramidi P, Pulla S, Sullivan SZ, Collom SL, Gartia Y, Munshi P, Biris AS, Noll BC, Berry BC

Synthesis of various cyclic carbonates with yield up to 100% and turn over frequency (TOF) of 351 h(-1) using CO2 and epoxides and a cobalt (III) complex of tetraamidomacrocyclic ligand is described. The catalyst was characterized by single crystal X-ray crystallography. A study of reaction conditions indicates that 2 MPa pressure of CO2 without any co-solvent is sufficient to achieve the desired product.

Keywords:Cyclic carbonates;CO2-epoxides;Co(III)-Tetraamidomacrocyclic ligand catalyst;Co-catalysts