New Syntheses of 3-Aroylflavone Derivatives; Knoevenagel Condensation and Oxidation versus One-Pot Synthesis
作者:Diana Pinto、Artur Silva、Patrícia Vaz、Djenisa Rocha、José Cavaleiro
DOI:10.1055/s-0032-1317159
日期:——
syntheses of 3-aroylflavones have been established. In the first synthesis the use of microwave irradiation led to an improvement in the yields of both the Knoevenagel condensation of β-diketones with aldehydes to afford 3-aroylflavanones and of their oxidation to 3-aroylflavones. In the second and more general synthesis, a novel and efficient procedure for 3-aroylflavones involves a one-pot reaction between
已经建立了 3-芳酰基黄酮的两种合成方法。在第一次合成中,微波辐射的使用导致 β-二酮与醛的 Knoevenagel 缩合得到 3-芳酰基黄烷酮以及它们氧化为 3-芳酰基黄酮的产率的提高。在第二个和更一般的合成中,3-芳酰基黄酮的新型有效程序涉及在双(三甲基甲硅烷基)氨基锂存在下 2'-羟基苯乙酮和芳酰氯之间的一锅反应。