In the last few decades in chemical science have seen efforts being made to make the
process of chemical synthesis greener. The green chemistry principles demand a catalytic …

The synthesis of heterocyclic compounds is always one of the most important challenges
among synthetic chemists. Pyranopyrazoles are an important class of heterocyclic …

A new and green heterogeneous MCM-41@ PDCA-Co catalyst has been prepared via
immobilization of cobalt (II) complex onto the surface of MCM-41. This was characterized by …

A nano-sized Fe3O4-supported Lewis acid ionic liquid catalyst for the synthesis of
polyhydroquinolines and propargylamines under ultrasound irradiation has been …

We report the synthesis of a new porous polymeric network (PPN) using triphenylamine and
α, α‐dibromo‐p‐xylene by a Friedel–Crafts alkylation promoted by anhydrous FeCl3 as an …

Sucrose chelated Bismuth ferrite (BiFeO3) nanoparticles as a novel heterogeneous catalyst
was synthesized by an auto combustion route. Different calcination temperatures (150° C …

A green approach for the promotion of the synthesis of Hantzsch products using poly
(vinylpyrrolidinium) perchlorate {[PVPH] ClO 4} as a new modified polymeric catalyst in the …

A series of 4‐(1H‐pyrazol‐4‐yl)‐polyhydroquinolines were synthesized through one‐pot
four‐component Hantzsch condensation of 1, 3‐diphenyl‐1H‐pyrazole‐4‐carbaldehydes …

Dimedone (5, 5-dimethylcyclohexane-1, 3-dione) is an alicyclic diketone, occasionally
considered as building blocks in design and synthesis of a wide variety of heterocycles. The …

Piperazinium nano silica sulfonate (PNSS) is simply prepared by the reaction of piperazine
with nano sized silica sulfuric acid. After preparation it was completely characterized using …