OLIGOMERS OF FDCA AND GLYCOLS FROM A ONE-POT ESTERIFICATION-TRANSESTERIFICATION PROCESS USING WATER-TOLERANT METAL TRIFLATE CATALYST

摘要

A method for preparing sugar-based oligomers is described. The process involves sequential (one-pot) esterification of 2,5-furan-dicarboxylic acid (FDCA) with an alcohol and transesterification with a glycol, as catalyzed by relatively low amounts of homogeneous water-tolerant Lewis acid catalysts, which can be retained in the product mixture from the esterification through transesterification.