ELECTROCARBOXYLATION OF ORGANIC-COMPOUNDS WITH CARBON-DIOXIDE CATALYZED BY METALLOPORPHYRINS .1. CATALYTIC ACTIVITIES OF METALLOPORPHYRINS FOR ELECTROCARBOXYLATION OF BENZYL-CHLORIDE

The electrocarboxylation of benzyl chloride with CO2 catalyzed by meta lloporphyrins and the effects of different kinds of central metals and ligands on catalytic activities are reported firstly in this research ing range. Metallopophyrins whose central metal can form corresponding M (I) complex compoundes such as CoTPP, FeTPP possess higher activiti es of catalyzation. Metalloporphyrins with water-soluble ligands such as (Co, Fe)TPPS, (Co, Fe)TTMAPPI are better catalysts. Electron-withdr awing groups on the rings of porphyrins cause the lowing of metallopor phyrinscatalytic activities.