Hu Xue-yi
2007
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Journal
Fine chemicals
Abstract
A one-pot process catalyzed by Mg-Al composite is used to synthesize 1,2-propylene glycol diacetate(PGDA) by inserting propylene oxide (PO) into acetic anhydride(AA) directly.The product is characterized by FTIR and ESI-MS.The selectivity for PGDA is 98.2% under the optimum reaction conditions that amount of Mg-Al composite is 1.6 g/100 g acetic anhydride,n(PO)/n(AA)=1,and drop PO at feeding rate of 0.75 g/min at 130~135 ℃.Compared with traditional method to synthesize glycol diesters,this novel one-pot process is a green chemistry approach with excellent atomic economy characteristics since neither extra reactant is needed nor by-product is produced.