<scp>l</scp>-Proline-Catalysed the Synthesis of Aromatic Aldehydes and Ketones and their Acridione Derivatives at Room Temperature
作者:Fang-Ming Wang、Dan Bao、Bing-Xiang Hu、Ze-Yu Zhou、Deng-Deng Huang、Li-Zhuang Chen、Yang-Mei Liu
DOI:10.3184/174751915x14377428213215
日期:2015.8
series of xanthene derivatives were prepared from cyclohexane-1,3-dione and aromaticaldehydes through Knoevenagel–Michael and cyclisation reactions in methanol:ethanol mixture (1:1), catalysed by a very small amount of l-proline at roomtemperature. Isomeric tetraketones were synthesised from dimedone and aromaticaldehydes under the same condition. Condensation of them with amines gave acridione derivatives
一系列呫吨衍生物是由环己烷-1,3-二酮和芳香醛通过 Knoevenagel-Michael 和在甲醇:乙醇混合物 (1:1) 中的环化反应制备的,在室温下由极少量的 l-脯氨酸催化。在相同条件下由二甲酮和芳香醛合成异构四酮。它们与胺缩合得到吖啶酮衍生物。获得并通过 X 射线单晶衍射确定吖啶酮的晶体结构。