N,N-Dimethylbenzimidazolium iodide as an Efficient Catalyst for a Green Reaction of Intermolecular Stetter Reaction in Water

Abstract

N,N-dimethylbenzimidazolium iodide in the presence of NaOH catalyst intermolecular Stetter reaction in water was developed to afford the desired 1,4-addition products in satisfactory to good yields, although aroin products occurred competitively. The benzimidazolium salt catalyst and NaOH mixture can be reused several times without significant loss of efficiency.