Correction to “Bifunctional Porphyrin Catalysts for the Synthesis of Cyclic Carbonates from Epoxides and CO<sub>2</sub>: Structural Optimization and Mechanistic Study”
We prepared bifunctional MgII porphyrin catalysts 1 for the solvent-free synthesis of cycliccarbonates from epoxides and CO2. The activities of 1d, 1h, and 1i, which have Br–, Cl–, and I– counteranions, respectively, increased in the order 1i < 1h < 1d. Catalysts 1d and 1j–m, which bear four tetraalkylammonium bromide groups with different alkyl chain lengths, showed comparable but slightly different
Bifunctional Porphyrin Catalysts for the Synthesis of Cyclic Carbonates from Epoxides and CO<sub>2</sub>: Structural Optimization and Mechanistic Study
ring closure formed the cyclic carbonate and regenerated the catalyst. Density functional theory calculations gave results consistent with the experimental results, revealing that the quaternary ammoniumcation underwent conformational changes that stabilized various anionic species generated during the catalytic cycle. The high activity of 1d and 1o was due to the cooperative action of the Mg(II) and
METALLOPORPHYRIN COMPLEX, MANUFACTURING PROCESS THEREFOR AND ITS USE AS CARBON DIOXIDE FIXATION CATALYST, AS WELL AS PROCESS FOR MANUFACTURING CYCLIC CARBONATE
申请人:National University Corporation Okayama University