Provided are a novel metal catalyst for preparing cyclic carbonate, and a method for preparing cyclic carbonate using the same, and more particularly, a method for selectively preparing cyclic carbonate in a high yield and at a higher conversion rate as compared to the existing catalysts, using the metal complex including a ligand represented by Chemical Formula 1 below and a trivalent metal in Group 8 or Group 13 as a catalyst and using various structures of epoxide compounds and carbon dioxide as raw materials. In addition, provided are the prepared cyclic carbonate, and an electrolyte including the same:
in Chemical Formula 1, R
1
is hydrogen, (C1-C20)alkyl or halogen; R
2
is hydrogen, (C1-C20)alkyl, (C1-C20)alkoxy, halogen or nitro.
提供了一种用于制备环状
碳酸酯的新型
金属催化剂,以及使用该催化剂制备环状
碳酸酯的方法,更具体地说,使用包括
化学式1所示的
配体和第8族或第13族的三价
金属作为催化剂,并利用环氧化合物和
二氧化碳等原料,以高产率和更高转化率选择性制备环状
碳酸酯的方法,相较于现有催化剂。此外,提供了制备的环状
碳酸酯,以及包括该
碳酸酯的电解质:在
化学式1中,R1为氢、(C1-C20)烷基或卤素;R2为氢、(C1-C20)烷基、(C1-C20)烷氧基、卤素或硝基。