Method for synthesizing cyclic carbonate through CO<2> and propargyl alcohol

Abstract

The invention discloses a method for synthesizing cyclic carbonate through CO<2> and propargyl alcohol. The method is characterized in that propargyl alcohol, silver salt and quaternary ammonium salt are mixed into acetonitrile or methylbenzene or DMF solvent, CO<2> is introduced at the normal temperature and normal pressure for conducting a synthetic reaction, after reaction liquid is extracted, a product, namely the cyclic carbonate, is obtained, and the mole ratio of the propargyl alcohol to the silver salt, the quaternary ammonium salt to the acetonitrile and the methylbenzene to the DMF solvent is 100:5-45:30-150:5-10000. Compared with the prior art, the method is simple in process and high in yield, raw materials are cheap and easy to obtain, the green house gases such as carbon dioxide are effectively utilized, air pollution is greatly reduced, addition of propargyl alcohol and the carbon dioxide and effective synthesis of the cyclic carbonate are achieved at the same time, and the method is a quite convenient process route with great industrial value.

Description

technical field [0001] The invention relates to the technical field of organic chemical synthesis, in particular to a CO 2 Synthesis of cyclic carbonates with propargyl alcohol. Background technique [0002] C 1 Resource CO 2 The fixed utilization of CO2 has attracted more and more attention, how to use CO efficiently and greenly 2 become a hot topic. Cyclic carbonate, a particularly important chemical raw material and organic synthesis intermediate, can be 2 to get. CO 2 The reaction literature of catalyzing the synthesis of cyclic carbonate has been documented, and JeanMarcJoumie and PierreH.Dixneuf et al reported a kind of PBu 3 Catalytic acetylenic alcohols with high pressure CO 2 A method for synthesizing cyclic carbonates; GlenA.Russell et al reported in J.Org.Chem. (Vol.51, No.26, 1986) that Pd(II) ligands catalyzed the synthesis of cyclic carbonates with acetylenic alcohols; K.Uemura and Y.Inoue et al reported the catalytic effect of potassium carbonate-crow...

AI Technical Summary

Problems solved by technology

[0003] The above publicly reported CO 2 Catalytic synthesis of cyclic carbonate technology needs to be carried out under high temperature and high pressure, and the reaction conditions are relatively harsh, such as the use of phosphorus, the use of heavy metals such as Pd, high temperature and high pressure carbon dioxide, supercritical fluid carbon dioxide and other conditions, the amount of catalyst used is large, and the preparation process Complex, high production cost and equipment requirements

Images