作者:Xinquan Hu、An Ding、Nan Sun、Baoxiang Hu、Zhenlu Shen、Liqun Jin
DOI:10.1021/acs.oprd.9b00334
日期:2019.11.15
A reported two-step procedure for preparing dimethyl 4-oxo-4H-pyran-3,5-dicarboxylate was extensively optimized. It was found that the reactions can be carried out in toluene as a single solvent and the product was directly obtained by a simple filtration. More importantly, considering potential solvent recovering and recycling, the effluent of the process can be remarkably reduced. This new process facilitated the potential scale-up with commercial significance.