Iron‐Based Deep Eutectic Solvents: Key Players for Amide and Sulfonamide Synthesis and Alcohol Oxidation
作者:Luciana Cicco、Sara Urselli、Claudia Favia、Filippo Maria Perna、Paola Vitale、Vito Capriati
DOI:10.1002/ejoc.202400300
日期:2024.6.24
Selective and sustainable oxidation of secondaryalcohols to their corresponding carbonyl compounds, alongside their applications as selective mono-alkylating reagents for both amide and arylsulfonamide derivatives, is achieved under aerobic and mild (40 °C) conditions in reusable Fe-based Lewis acidic deep eutectic solvents.
A convenient and user-friendly method to yield benzamides from primary and secondary amines and various benzylic alcohols in the presence of a cheap iron salt (FeCl2 center dot 4H(2)O) and tert-butylhydroperoxide (70% in water) as a stoichiometric oxidant is described. Control experiments indicated that this reaction might involve radical species. This method proved to be general, generating a family of 30 benzamides and was applied to the preparative synthesis of anti-anxiety drug moclobemide. (C) 2014 Published by Elsevier Ltd.