2,2,2‐Trifluoroethanol‐mediated hydroarylation of fluorinated alkynes with indoles: Application to diindolylmethanes
作者:Philipp Flury、Olga Eppler、Dieter Schollmeyer、Stefan Laufer、Thanigaimalai Pillaiyar
DOI:10.1002/ardp.202100488
日期:2022.8
A new mild and practically simple alkyne hydroarylation protocol for the synthesis of 3-(indol-3-yl)-3-(trifluoromethyl)acrylic acid esters by the reaction of indole derivatives with ethyl/methyl 4,4,4-trifluoro-3-(indol-3-yl)but-2-enoates in trifluoroethanol was developed. This method has the following advantages: no catalyst, atom economy, high yields, broad substrate scope, and large-scale synthesis
通过吲哚衍生物与乙基/甲基 4,4,4-trifluoro-3 反应合成 3-(indol-3-yl)-3-(三氟甲基)丙烯酸酯的一种新的温和且实用的炔烃加氢芳基化方案开发了三氟乙醇中的-(indol-3-yl)but-2-enoates。该方法具有无催化剂、原子经济、收率高、底物范围广、合成规模大等优点。该协议的潜在应用通过合成各种 CF 3取代合成子和一类新的(非)对称 3,3′-二吲哚甲烷(具有可能具有生物活性的季碳核心)得到进一步证明。