Nucleophilic aromatic substitution reactions under aqueous, mild conditions using polymeric additive HPMC
作者:Niginia Borlinghaus、Tharique N. Ansari、Leon H. von Garrel、Deborah Ogulu、Sachin Handa、Valentin Wittmann、Wilfried M. Braje
DOI:10.1039/d1gc00128k
日期:——
nucleophilic aromatic subsitution (SNAr) reactions between various nucleophiles and electrophiles. The mild reactionconditions facilitate a broad functional group tolerance that can be utilized for subsequent derivatization for the synthesis of pharmaceutically relevant building blocks. The use of only equimolar amounts of all reagents and water as reaction solvent reveals the greenness and sustainability
A novel protocol for the copper-catalysedS-arylation of thiophenol derivatives with aryl halides leading to diaryl sulfides is reported. The reactions were catalysed by a combination of a copper salt and a 1,2-diamine derivative (acting both as the ligand and as the base) using exclusively water as the solvent. The recovery and successful reutilisation of the aqueous medium containing the active catalyst