反应详情

Adding 1,4-pentanediol carbonate and cyclopropanol in a tubular ester exchange reactor; then adding the metal-rare earth oxide composite catalyst prepared by the embodiment 3, uniformly mixing and performing an ester exchange reaction, distilling the reaction product to obtain dicyclopropanol carbonate, wherein the mole ratio of 1,4-pentanediol carbonate to cyclopropanol is 1:15, and the weight ratio of the metal-rare earth oxide composite catalyst to the total weight of 1,4-pentanediol carbonate and cyclopropanol is 2:100; the ester exchange reaction is performed at a temperature of 140° C. and under an absolute pressure of 0.5 MPa for 120 minutes; in the ester exchange reaction, the conversion rate of 1,4-pentanediol carbonate is 99%, and yield of the dicyclopropanol carbonate is 93%.

1. customprepared by the embodiment 3
2. additionuniformly mixing
3. distillationdistilling the reaction product