| 摘要 |
Cyclic carbonate esters are reacted with polycarboxylic acids to produce bis(hydroxyalkyl) esters from aromatic polycarboxylic acids in the presence of selected catalysts comprising at least one of phosphines, phosphonium halides, sulfonium halides, sulfoxonium halides, and ammonium and alkyl ammonium halides. In the preferred embodiment, ethylene carbonate is reacted with terephthalic acid to produce bis(2-hydroxyethyl) terephthalate and/or polymers thereof.
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