A series of new 8-aryl-7,8-dihydro[1,3]dioxolo[4,5-g]chromen-6-ones were synthesized via a three-component reaction of 3,4-methylenedioxyphenol, aromatic aldehydes and Meldrum’s acid in the presence of CeCl3·7H2O under solvent-free conditions. The method provided several advantages such as easy work-up, high yields and environmentally benign procedure.
一系列新的8-芳基-7,8-二氢[1,3]二氧杂杂环[4,5-g]色苷-6-酮通过3,4-亚甲二氧基苯酚、芳香醛和梅尔德鲁姆酸在CeCl3·7H2O存在下在无溶剂条件下进行三组分反应合成。该方法具有易于操作、高产率和环保的优点。