article i nfo Recyclable ZnO nano particles (ZnO NPs) provide an efficient and economic route for synthesis of multi com- ponent A 3 coupling reaction of propargylamines under solvent free condition. It was found that without using co-catalyst and any other activator, high catalytic activity was obtained in short reaction time in case of zinc oxide when compared to other metal ion and/or metal oxide catalysts. In addition, ZnO NPs catalyst can be easily recycled and reused for ten times without any significant loss of catalytic activity with excellent yields. ZnO NPs were synthesized by a simple, economic and elegant chemical bath deposition technique.