A unique route to the synthesis of 2-alkyl-2-arylphenylsulphonylacetonitriles via the nucleophilic aromatic substitution (SNAr) of chloroarene cyclopentadienyliron complexes with 2-alkyl phenylsulphonylacetonitriles has been investigated. Reactions of chloroarene complexes (1 ad) with 2-alkyl phenylsulphonylacetonitrile (2 a, b) in the presence of K2CO3 in DMF at room temperature led to the formation of complexes 3 ad and 4 a, c, d in good ...
