An efficient procedure for rapidly synthesizing the 1,3,5-triarylpentane-1,5-diones compounds using aromatic aldehydes and aromatic ketones as starting materials by tandem aldol reactions/Michael additions under NaOH/Al2O3 and the solvent-free conditions has been described. All compounds were characterized by IR, 1H NMR and elemental analysis. Additionally, the crystal structure of 3-(2’,4’-dichlorophenyl)-1,5-diphenylpentane-1,5-dione was obtained and determined by X-ray single-crystal diffraction. The protocol offers several advantages such as a simple, eco-friendly procedure and mild reaction conditions.
                                    以芳香醛和
芳香酮为起始原料,在 NaOH/
Al2O3 和无溶剂条件下通过串联醛醇反应/迈克尔加成法快速合成 1,3,5-三芳基
戊烷-1,5-二酮化合物的高效程序已经得到描述。所有化合物都通过红外光谱、1H NMR 和元素分析进行了表征。此外,还获得了 3-(2',4'-二
氯苯基)-1,5-二苯基
戊烷-1,5-二酮的晶体结构,并通过 X 射线单晶衍射测定了其晶体结构。该方案具有程序简单、环保、反应条件温和等优点。