New catalysts of water soluble bifunctional metalloporphyrins M(TTMAPP)I4(X) (M = Co,Fe,Mn,and Cr; X = OAc,CF3COO,CCl3COO,OTs,Cl,Br,and Ⅰ) were synthesized and used to catalyze the synthesis of cyclic carbonate through the coupling reaction of terminal epoxides and CO2. The effects of reaction temperature,various metals as the Lewis acidic center,counterions,and recycling of the catalysts were studied. 5,10,15,20-Tetra-(p-N,N,N-trimethylphenyl ammonium iodide)porphyrinium cobalt(Ⅲ) acetate [Co(Ⅲ)-(TTMAPP)I4...