NOVEL TRIDENTATE COMPLEXES AND PROCESS OF PRODUCING POLYCARBONATE BY COPOLYMERIZATION OF CARBON DIOXIDE AND EPOXIDE USING THE SAME AS CATALYST

摘要

Provided are a complex synthesized from a novel tridentate ligand including an ammonium salt and a process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as a catalyst. A novel tridentate complex may be cheaply prepared as compared to the existing tetradentate complex containing four ammonium salts but have an advantage in that the novel tridentate complex may have an activity at a level similar to that of the existing tetradentate complex by adopting a cis-β conformation. Further, since in the tridentate complex, the number of ammonium salt serving as an initiator is small but the number of vacant sites is large as compared to the tetradentate complex containing four ammonium salts, the tridentate complex may have excellent activity.

主权项

1. A complex represented by the following Chemical Formula 1: In Chemical Formula 1, M is trivalent cobalt or trivalent chromium; A is an oxygen or sulfur atom; Q is a diradical linking two nitrogen atoms; R1 to R9 are each independently hydrogen; halogen; (C1-C20)alkyl; (C1-C20)alkyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C2-C20)alkenyl; (C2-C20)alkenyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkyl(C6-C20)aryl; (C1-C20)alkyl(C6-C20)aryl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)aryl(C1-C20)alkyl; (C6-C20)aryl(C1-C20)alkyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkoxy; (C6-C30)aryloxy; formyl; (C1-C20)alkylcarbonyl; (C6-C20)arylcarbonyl; —[CR103-m{(CR11R12)nY+R13R14R15}m(Z−)m], two of R1 to R9 being linked to each other to form a ring; at least one of R1 to R9 is —[CR103-m{(CR11R12)nY+R13R14R15}m(Z−)m]; Y is nitrogen or phosphorus; R10 to R15 are each independently hydrogen; (C1-C20)alkyl; (C1-C20)alkyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C2-C20)alkenyl; (C2-C20)alkenyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkyl(C6-C20)aryl; (C1-C20)alkyl(C6-C20)aryl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)aryl(C1-C20)alkyl; or (C6-C20)aryl(C1-C20)alkyl containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; two of R13, R14, and R15 being linked to each other to form a ring; m is an integer of 1 to 3; n is an integer of 1 to 20; and X1, X2, and Z are each independently a halide ion; BF4−; ClO4−; NO3−; PF6−; HCO3−; (C6-C30)aryloxy anion; (C6-C30)aryloxy anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkylcarboxylate anion; (C1-C20)alkylcarboxylate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)arylcarboxylate anion; (C6-C20)arylcarboxylate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkoxy anion; (C1-C20)alkoxy anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkylcarbonate anion; (C1-C20)alkylcarbonate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)arylcarbonate anion; (C6-C20)arylcarbonate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkylsulfonate anion; (C1-C20)alkylsulfonate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)arylsulfonate anion; (C6-C20)arylsulfonate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus;(C1-C20)alkylamido anion; (C1-C20)alkylamido anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)arylamido anion; (C6-C20)arylamido anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C1-C20)alkylcarbamate anion; (C1-C20)alkylcarbamate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus; (C6-C20)arylcarbamate anion; or (C6-C20)arylcarbamate anion containing at least one selected from halogen, nitrogen, oxygen, silicon, sulfur, and phosphorus.