Method for producing asymmetric linear carbonate

A method for preparing an asymmetric linear carbonate, the method comprising:

• transesterifying a first symmetric linear carbonate and a second symmetric linear carbonate under a catalyst represented by Chemical Formula 1:
• wherein, in Chemical Formula 1,
• R1 to R3 are the same as or different from each other, and are each independently hydrogen;
• or a straight-chained or branched alkyl group having 1 to 4 carbon atoms, and
• at least one of R1 to R3 is a straight-chained or branched alkyl group having 1 to 4 carbon atoms.