Ionic Liquid-Attached Colloidal Silica Nanoparticles as a New Class of Silica Nanoparticles for the Preparation of Propargylamines

چکیده مقاله

We reported a novel class of organic–inorganic hybrid material based on the ionic liquid bis(1(3- trimethoxysilylpropyl)-3-methyl-imidazolium) nickel tetrachloride tethered to colloidal silica nanoparticles and characterized by 1H NMR spectroscopy, scanning electron microscope, energy dispersive spectroscopy, thermogravimetric analysis, and dynamic light scattering. Meanwhile,we compared the catalytic activity of ionic liquid immobilized colloidal nano-silica with ionic liquid immobilized nano-SiO2 produced by sol–gel route. A proper, atom-economical, straightforward one-pot multicomponent synthetic route for the synthesis of propargylamines in good yields has been devised using ionic liquid tethered to colloidal silica nanoparticles.