NaOH-Al2O3 Catalyzed Synthesis of 1, 3, 5-triarylpentane-1, 5-diones Derivatives Under Solvent-Free Condition and Crystal Structure of 3-(2', 4'-dichlorophenyl)-1, 5-diphenylpentane-1, 5-dione
作者:Xianqiang Huang、Qiu Feng、Yanliang Sun、Qingpeng He、Yong Wang
DOI:10.2174/157017812800233732
日期:2012.4.24
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。