Design of 1-methylimidazolium tricyanomethanide as the first nanostructured molten salt and its catalytic application in the condensation reaction of various aromatic aldehydes, amides and beta-naphthol compared with tin dioxide nanoparticles

摘要

1-Methylimidazolium tricyanomethanide {[HMIM]C(CN)(3)} as a novel, green and nano molten salt catalyst was designed and fully identified by IR, H-1 NMR, C-13 NMR, mass, thermal gravimetric (TG), derivative thermal gravimetric (DTG), X-ray diffraction (XRD) pattern, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses. The catalytic application of {[HMIM]C(CN)(3)} for the one-pot three-component condensation reaction of various aromatic aldehydes, amides and beta-naphthol was studied through the preparation of 1-amidoalkyl-2-naphthols at room temperature under solventfree conditions in comparison with nano SnO2. In the presented investigations, some products were produced and reported for the first time.