Gold Nanoparticles Supported on Imidazole‐Modified Bentonite: Environmentally Benign Heterogeneous Catalyst for the Three‐Component Synthesis of Propargylamines in Water

Gold nanoparticles supported on imidazole‐modified bentonite, Bent@Im@Au NPs, has been developed for the first time as an effective heterogeneous catalyst for the synthesis of propargylamines under mild reaction conditions in water at a loading of 0.07 mol % of Au. Various techniques such as X‐ray diffraction, high‐resolution transmission electron microscopy, Fourier transform infrared spectroscopy, and element mapping by scanning electron...