•Metal complexes (Co, Fe, Mn) bearing ONO ligands are highly active catalysts in CO2/epoxide coupling reaction.•Synthetized catalysts were tested successfully in catalytic coupling of CO2 with propylene oxide using PPNCl as co-catalyst.•The catalytic conditions for the Mn complex were optimized and reach the TOF of 1600 h−1. The use of carbon dioxide as feedstock in copolymerization reaction with epoxides has been ideally proposed as an alternative route to produce chemicals without the use of phosgene. One of the most appealing strategies is to use metal complexes as catalysts to form cyclic organic carbonates. These organic compounds are very interesting in industry due to their enormous scope of applications. In this paper, the use of catalytic systems based on sustainable, non-toxic and cheap metal complexes (Mn, Fe, Co) containing Schiff-base tridentate ONO ligands in the synthesis of propylene carbonate (PC) from carbon dioxide and propylene oxide (PO), are discussed. All complexes were tested successfully, affording cyclic carbonate in high productivities (3800 mol PC/mol cat) using a co-catalyst. Synthetized iron and manganese complexes have shown significantly higher activities compared with the activity showed by the new cobalt complexes. The catalytic conditions using the manganese (II) complex 2 were optimized and a TOF of 1600 h−1 was reached.