作者:J. Carlos Menéndez、Vellaisamy Sridharan、Subbu Perumal、Carmen Avendaño
DOI:10.1055/s-2005-922760
日期:——
The solid-state reaction between anilines and phenacyl bromides in the presence of an equimolecular amount of sodium bicarbonate gives N-phenacylanilines. Microwave irradiation of mixtures of these compounds with anilinium bromides at 540 W for 45-60 s provides a mild, general, and environmentally friendly method for the synthesis of 2-arylindoles in 50-56% overall yields. A one-pot variation of the method, involving irradiation of 2:1 mixtures of anilines and phenacyl bromides, was also developed, allowing a simplified experimental procedure and leading to improved yields (52-75%).
苯胺与苯基溴化物在等分子量的碳酸氢钠存在下发生固态反应,生成 N-苯基苯胺。在 540 瓦的条件下,用微波辐照这些化合物与溴化苯胺的混合物 45-60 秒,可提供一种温和、通用且环保的方法来合成 2-芳基吲哚,总产率为 50-56%。此外,还开发出了该方法的单锅变体,即对苯胺和苯酰溴的 2:1 混合物进行辐照,从而简化了实验过程并提高了产率(52-75%)。