A multifunctional room temperature ionic liquid [DDQM][TFSI] has been designed and its properties have been investigated to be used as an electrolyte. The RTIL bears superior catalytic properties as well...

In this work, we report the synthesis of nanostructured ZnC 2 O 4 .2H 2 O with irregular sheet-like morphology using a simple hydrothermal procedure. The as-synthesized ZnC 2 O 4 .2H 2 O nanocrystal (ZnC 2 O 4 NC) is very stable and therefore, explored for the first time as highly efficient recyclable catalyst for the azide-alkyne cycloaddition (AAC) reaction. Our catalytic protocol is highly efficient and amenable to a variety of aromatic/aliphatic azide and alkyne substrates under mild reaction condition to afford regioselective 1,4-disubstituted 1,2,3-triazoles with good to excellent yields. Also, for the one pot synthesis of desired products, the developed method is exceedingly sustainable where azides are formed in-situ from their respective precursors. Our catalytic results outperformed most of the reported state-ofthe-art works involving copper free nanoparticulate and zincbased catalysts. All the original features of the recovered catalyst remained intact after 5 th catalytic cycle which clearly suggests the efficiency of the Zn-based stable nanostructured material as alternative copper free catalysts for AAC reactions. The developed methodology could be extended for gramscale synthesis of 1,2,3-triazoles.

A novel and sustainable way of constructing medicinally active compounds, 4-aryl-1,2,3-(NH)-triazoles, has been developed by employing Ni(OH)2–ZnO nanostructured mixed crystals. The one-pot multicomponent synthesis necessitating the nanosheet-like reusable catalyst in...

1, 2, 3-triazoles display enormous applications in the extensive fields of chemistry such as pharmaceuticals, ligands, conjectures, etc. Among these classes of compounds, the N-unsubstituted triazole emerges as a potent applicant for various fields of chemistry and therefore synthetic procedures for this molecular scaffold possess certain importance. Moreover, from an environmental perspective, metal-free organic synthesis gains tremendous attention as most of the metals are persistent in nature. In this review, we are going to discuss only the metal-free synthetic routes for the construction of N-unsubstituted 1,2,3-triazoles reported during the last decade.