Herein, a facile one-pot multicomponent protocol for the synthesis of biologically important pyrano[2,3-<italic>c</italic>]pyrazole and benzylpyrazolyl coumarin derivatives has been demonstrated using ZrO₂ nanoparticles as reusable catalyst at room temperature.

Free-ZnO nanoparticles have been employed as a mild, efficient and reusable catalyst for the one-pot multicomponent synthesis of tetrahydrobenzo[b]pyrans dihydropyrimidones in excellent yields. The ZnO NPs were recycled reused eight times.

Herein, we have reported hierarchical mesoporous RuO2/Cu2O nanoparticle-catalyzed selective aerobic oxidative homo/hetero azo-coupling of anilines under oxidant/base/additive-free conditions. The synergistic effect the individual oxides was established by density functional theory calculations and experimental studies.

Abstract Here, we have reported fabrication of graphitic polymeric C 3 N 4 supported CuCl 2 (Cu@g‐C ) and characterized by powder X‐ray diffraction, field emission scanning electron microscopy, high resolution transmission photoelectron spectroscopy studies. An efficient regioselective protocol for the on water synthesis 4‐aryl‐ NH ‐1,2,3‐triazole derivatives via 1,3‐diipolar cycloaddition reactions nitroolefins/phenylacetylenes to sodium azide were demonstrated using Cu@g‐C as robust...

Illustrated herein is a Pd(II)-catalyzed direct difunctionalization of two C(sp3)–H bonds aliphatic carboxylic acid derivatives by bifunctional reagents (BFRs) the 2-iodobenzoic series. The methyl 2-pyridyl sulfoximine (MPyS) bidentate directing group (DG), 2-chloro-5-trifluoromethylpyridine ligand, AgOAc as base, and NaBrO3 co-oxidant help concerted metalation deprotonation (CMD) inert bonds, well reductive elimination; density functional theory (DFT) studies shed light on these crucial...

Here, we have reported multicomponent synthesis of diverse pyran fused chromenes namely 2-aminochromene, dihydropyrano[3,2-<italic>c</italic>]chromene, and chromeno[4,3-<italic>b</italic>]chromene derivatives using fluorescent<italic>t</italic>-ZrO₂nanoparticles as reusable catalyst in water.

Here, we have demonstrated Michael addition of active methylene compounds, aromatic/aliphatic amines, thiols and alcohols to conjugated alkenes using magnetic nano-NiFe₂O₄ as reusable catalyst in water.

Here, we have demonstrated regioselective synthesis of novel 2-alkoxy-3-arylimidazo[1,2-<italic>a</italic>]pyridines using nano-NiFe₂O₄ as reusable catalyst <italic>via</italic> one-pot sequential aza-Michael addition, Fe-promoted ligand transfer and C–H imination reactions.

Here, we have demonstrated magnetic nano-NiFe₂O₄ catalyzed transfer hydrogenation of olefins/alkynes using isopropyl alcohol as source hydrogen under ligand and Ru/Pd-free conditions dehydrogenation alcohols oxidant-free conditions.

A Co-catalyzed one-pot double annulation of sulfoximine bearing thioamides with alkynes for the synthesis [6,6]-fused thiopyrano-isoquinolines is disclosed. The involves a 6π-electrocyclization 7-membered S-chelated cobaltacycle.

Here, we have reported enhanced molecular binding affinities of benzylpyrazolyl coumarin scaffolds with COX-II inhibitor and an ionic liquid catalyzed simple green synthetic route to access these scaffolds.

Here, we have reported CuO nanoparticles catalyzed synthesis of poly-functionalized furan derivatives <italic>via</italic> direct functionalization α,β-unsaturated carbonyl compounds through conjugate addition initiated domino reactions in aqueous ethanol.

Abstract An acid‐functionalised, magnetic, room‐temperature ionic liquid, 1‐acyl‐3‐methylimidazolium tetrachloroferrate ([AcMIm]FeCl 4 ), was synthesised and its optical, thermal properties were investigated. The magnetic moment (0.05402 emu in 2 T fields) showed strong paramagnetic behaviour, thermogravimetric analysis indicated very good stability with a decomposition temperature higher than 230 °C. Additionally, [AcMIm]FeCl efficiently catalysed the oxidative ipso ‐hydroxylation of...

Reversible epoxies using the Diels–Alder chemistry enables recycling processes through depolymerizing polymer at higher temperature and then repolymerizing upon cooling. Compared to conventional bulk heating, photothermal heating can save time resource and, consequently, reduce costs reach an elevated for of reversible epoxies. In previous studies, self‐healing cracks reattachments two broken pieces have been presented a laser; however, sample as whole is not feasible by such point light...

Regioselective synthesis of 2-alkoxyimidazopyridines by Fe-SBA-15 and screening their<italic>in silico</italic>binding affinity to biological targets.

Here we have developed novel bone-like superparamagnetic nanocomposites for bone tissue engineering. These exhibited high water uptake ability, excellent mechanical properties, good antimicrobial activities and blood compatibility.

Fe-based magnetic nanoparticles (MNPs) have attracted much attention due to its unique properties like high surface reactivity and selectivity, easy separation by external magnet recyclability. Here, in this review, recent advances on MNPs promoted multicomponent reactions (MCRs), oxidation/reduction carbon–carbon/carbon–heteroatom bond formation been discussed.

Abstract Here, we have demonstrated an efficient protocol for the synthesis of coumarin‐3‐carboxamides via one‐pot multicomponent reactions 2‐hydroxy‐benzaldehyde, ethyl cyanoacetate and aromatic/aliphatic amines using magnetically separable nano‐Fe 3 O 4 as reusable catalyst in aqueous ethanol. This is first to produce coumarin‐3‐carboxamides. The are very fast (5 min.) high yielding (74‐99%). was separated simply by external magnet, after completion reaction recycled up 10 times without...

Silica (SiO₂) supported bimetallic copper/silver nanoparticles (Cu/Ag@SiO₂NPs) were synthesized for clean oxidation of benzoins/benzyl alcohols. All the reactions fast, and high yielding (95–99%) Cu/Ag@SiO₂nano-catalyst was reused eight times without loss its catalytic performance.

We report mesoporous nano‐Pd‐MCM‐41 catalyzed rapid and efficient synthesis of 1,3,5‐triarylbenzenes via de‐nitrative cyclotrimerization β‐nitrostyrenes. All the reactions were very fast high yielding. The Pd‐MCM‐41 was also effective in catalyzing [3+2] cycloaddition β‐nitrostyrenes with TMSN 3 to synthesize 4‐aryl‐ NH ‐1,2,3‐triazoles. catalyst reused at least up eight times minimum loss catalytic activity.