Recyclable and reusable<i>n</i>-Bu<sub>4</sub>NBF<sub>4</sub>/PEG-400/H<sub>2</sub>O system for electrochemical C-3 formylation of indoles with Me<sub>3</sub>N as a carbonyl source
作者:Fei Ling、Didi Cheng、Tao Liu、Lei Liu、Yujin Li、Jingyi Li、Weihui Zhong
DOI:10.1039/d1gc00661d
日期:——
A safe, practical and eco-friendly electrochemical methodology for the synthesis of 3-formylated indoles has been developed by the utilization of Me3N as a novel formylating reagent. Stoichiometric oxidants, metal catalysts, and activating agents were avoided in this method, and an aqueous biphasic system of n-Bu4NBF4/PEG-400/H2O was used as a recyclable and reusable reaction medium, which made this
通过使用Me 3 N作为新型甲酰化试剂,开发了一种安全,实用且环保的电化学方法,用于合成3-甲酰化的吲哚。该方法避免了化学计量的氧化剂,金属催化剂和活化剂,并且将n -Bu 4 NBF 4 / PEG-400 / H 2 O的水相双相体系用作可循环和可重复使用的反应介质,从而实现了这种电合成方法更可持续和环保。该工艺扩大了N -EDG和N的底物范围和官能团耐受性-EWG吲哚。此外,通过这种途径实现了药物和天然产物的后期功能化和全部/正式合成。