ortho-Aminocarbonitriles, cyclohexa-1,3-dienamines and 2-amino-3-cyanopyridines were synthesized by [Co(TPPASO3H)]Cl as an efficient pyridiniumporphyrazinato based catalyst.

The present investigation describes synthesis of a good range of henna‐based compounds in the presence of novel nano cobalt phthalocyanine like molten salt (tetra‐2,3‐pyridiniumporphyrazinato cobalt tribromomethanide) [Co (TPPABr)]CBr3 as an efficient, recyclable and thermally stable heterogeneous catalyst.

1,10‐Phenanthrolin‐1‐ium trinitromethanide (1,10‐PHTNM) as a novel nano molten slat with Y‐aromatic counter ion was synthesized and fully characterized by using various techniques such as FT‐IR, 1H NMR, 13C NMR, mass, TGA, DTG, XRD, SEM and TEM. A series of organic compounds include 1,4‐dihydropyrano[2,3‐c]pyrazoles, tetrahydrobenzo[b]pyran, pyrano[4,3‐b]pyrans, bispyrazole, 1H‐pyrazolo[3,4‐b]quinolones, hexahydroacridine‐1,8‐diones and methylenebis(3‐hydroxy‐5,5‐dimethylcyclohex‐2‐enones) were synthesized in the presence of 1,10‐PHTNM as a novel and efficient proton sponge nano molten slat catalyst. According to the results of FT‐IR, 1H NMR, 13C NMR, mass spectrum of 1,10‐PHTNM and due to high electron charge density and none bonded repulsion of lone pair electrons between two nitrogen atoms (peri‐effect), this catalyst is a type of proton sponge.

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In the current work, the design, synthesis, characterization, and catalytic performance of a novel pseudopolymeric magnetic nanoparticles bearing urea linkers were presented. After the synthesis of urea linker, it was applied for the synthesis of pseudopolymeric magnetic nanoparticles. The structure of the synthesized pseudopolymeric magnetic nanoparticles was confirmed by applying different methods including Fourier transform infrared (FT-IR) spectroscopy, energy dispersive X-ray (EDX) analysis, thermo gravimetric analysis/differential thermal analysis (TG/DTG), transmission electron microscopy (TEM), scanning electron microscopy (SEM), vibrating sample magnetometer (VSM), differential reflectance spectroscopy (DRS) and N 2 adsorption-desorption isotherms. The catalytic performance of the titled structure was tested towards the synthesis of tetrahydrodipyrazolopyridine derivatives under mild reaction conditions.

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In this work, [Fe 3 O 4 @SiO 2 (CH 2 ) 3 ][DABCO-H][C(CN) 3 ] 2 was prepared, identified by various analyses such as FT-IR, EDX, SEM coupled EDX (SEM mapping), XRD, FE-SEM, TEM, TGA, DTG, ICP and VSM and used as a nanomagnetic catalyst for the synthesis of henna-based benzopyrazolo[3,4-b]quinolindiones via cooperative vinylogous anomeric based oxidation under solventfree condition. Some of these products are new and reported for the first time.