Article

Catalysis Letters

, Volume 137, Issue 1, pp 1-7

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

  • Anindya GhoshAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock Email author 
  • , Punnamchandar RamidiAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock
  • , Sharon PullaAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock
  • , Shane Z. SullivanAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock
  • , Samuel L. CollomAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock
  • , Yashraj GartiaAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock
  • , Pradip MunshiAffiliated withReliance Industries Limited, Research Center Email author 
  • , Alexandru S. BirisAffiliated withDepartment of Applied Science and Nanotechnology Center, University of Arkansas at Little Rock
  • , Bruce C. NollAffiliated withBruker AXS Inc.
    • , Brian C. BerryAffiliated withDepartment of Chemistry, University of Arkansas at Little Rock

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Abstract

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.

Graphic Abstract

 
http://static-content.springer.com/image/art%3A10.1007%2Fs10562-010-0325-0/MediaObjects/10562_2010_325_Figa_HTML.gif

Keywords

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