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Updated: Aug 22, 2025

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
Highly Reactive Palladium-Catalyzed and Acetonitrile-Mediated Three-Component Reactions for Arylsulfone Synthesis
Muhammad Aliyu Idris1, Sunwoo Lee1
1Department of Chemistry, Chonnam National University, Gwangju 61186, Republic of Korea.
Abstract:
Arylsulfone groups play an important role in the synthesis of functionalized molecules. The acetonitrile-mediated three-component reactions for arylsulfone synthesis were developed in the presence of a 0.00025 mol % palladium catalyst. Arylboronic acids reacted with potassium metabisulfite (K2S2O5) and benzyl bromide in the presence of LiF and a very low concentration of PdCl2 in acetonitrile solvents to produce the corresponding benzyl arylsulfones in moderate to good yields. Various arylboronic acids reacted with K2S2O5 and carbon electrophiles to produce the desired arylsulfones under the optimized conditions. It was proposed that acetonitrile accelerated the generation of aryl anion species from the reaction of arylboronic acids and LiF.
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