Synthesis of symmetric triarylmethane derivatives catalyzed by AIL ionic liquid
作者:Li Q. Kang、Han Gao、Yue Q. Cai
DOI:10.1007/s00706-017-2053-2
日期:2018.1
AbstractAn efficient, eco-friendly ionicliquid was described for the synthesis of symmetric triarylmethane derivatives via Baeyer condensation of N,N-dimethylaniline with different active aromatic aldehyde compounds using amide ionicliquid as a catalyst. The syntheses were achieved for the first time using amide ionicliquid as a catalyst eliminating the need for a volatile organic solvent. The advantages
A convenient and practical method for the synthesis of unsymmetrical triarylmethanes was demonstrated through a one-pot three-component double Friedel–Crafts reaction of various aliphatic, aromatic, or heteroaromatic aldehydes with N,N-dialkylanilines and indoles by using a Brønstedacidicionicliquid as the catalyst. This method was successfully applied under metal- and solvent-free conditions at
通过使用布朗斯台德酸性离子液体,各种脂肪族、芳香族或杂芳香族醛与N , N - 二烷基苯胺和吲哚的一锅三组分双傅克反应,证明了一种方便实用的合成不对称三芳基甲烷的方法作为催化剂。该方法在 80 °C 的无金属和无溶剂条件下成功应用,从广泛的底物中以中等至高产率提供了相应的不对称三芳基甲烷产物。此外,通过定量NMR分析研究了该反应的机理。
An efficient and convenient protocol for the synthesis of diaminotriarylmethanes
作者:Jun-Tao Hou、Jian-Wu Gao、Zhan-Hui Zhang
DOI:10.1007/s00706-011-0461-2
日期:2011.5
A novel and efficient procedure was developed for the preparation of diaminotriarylmethanes through the Baeyer condensation of aromatic aldehydes and N,N-dimethylaniline or N,N-diethylaniline in the presence of niobium chloride under solvent-free conditions. This approach offers several advantages, such as short reaction time, high yields, low cost, and mild reaction conditions.