Propylene glycol monomethyl ether propionate compounds and the process for the preparation thereof

摘要

Propylene glycol monomethyl ether propionate compounds are obtained by the esterification of propylene glycol monomethyl ether with propionic acid at an elevated temperature above 80 DEG C. in the presence of acidic catalyst and azeotropic agent. The compounds are rectified for removing acid residue and moisture in order to yield the desirable product having high purity.