[reaction: see text] A task-specific ionic liquid, [bmIm]OH, has been introduced as a catalyst and reaction medium in Michael addition. Very interestingly, although the addition to alpha,beta-unsaturated ketones proceeds usual way, giving monoaddition products, this liquid always drives of open-chain 1,3-dicarbonyl compounds with esters nitriles toward bis-addition produce exclusively bis-adducts one stroke.

A simple strategy for detection of glutathione (GSH) in physiologically relevant concentrations is reported by manipulating the electron transfer pathways surface-modified quantum dots. The probe consisted fluorescent CdS:Mn/ZnS core/shell dots (Qdot) properly conjugated to dopamine through CS2-assisted zero-length covalent coupling. Qdots exhibited bright yellow-orange emission at ∼ 592 nm, which could be attributed 4T1 → 6A1 transition Mn2+ ions Qdot core. fluorescently dark (OFF state)...

Here we report a simple strategy for selective detection of cadmium ions by manipulating the electron transfer pathways surface-engineered quantum dots.

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.

A variety of structurally diverse epoxides undergo facile cleavages by ionic liquid, [AcMIm]X without any catalyst and solvent to produce the corresponding vicinal halohydrins in high yields. The are considerably fast highly regioselective.

A simple and straightforward route for the synthesis of thioethers, thioesters, vinyl thioethers thio-Michael adducts has been demonstrated using silica nanoparticles (NPs) as a reusable catalyst via 1,2-addition thiols to alkenes, alkynes alkyl/acyl halides, 1,4-addition conjugated alkenes at room temperature.

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...

[reaction: see text] Diphenyl diselenide (and disulfide) undergo facile reaction with indium(I) iodide and the corresponding intermediate complex condenses in situ a variety of substituted vinyl bromides presence catalytic amount tetrakis(triphenylphosphine)palladium(0) [Pd(PPh3)4] THF at room temperature to produce vinylic selenides sulfides good yields. The conversion (E)-vinyl is remarkably stereoselective giving sulpfides) whereas stereoselectivity (Z)-vinyl not very good.

A novel, heterogeneous Pd-MCM-48 catalyst has been developed by encapsulating palladium nanoparticles into the cubic phase of mesoporous MCM-48 matrix at room temperature. The demonstrated excellent chemo- and regioselectivity for hydrogenation olefins temperature within 30-80 min. turnover frequency is very high (4400 h(-1)). Interestingly, selectivity was significantly influenced mode addition precursor. Moreover, also effective coupling reactions with formation carbon-carbon...

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.

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.

The literature survey reveals that the individual coumarin and heterocyclic molecules have biological pharmaceutical activities. Moreover, integrated coumarinfused compounds shown interesting physiochemical properties thus, designing development of coumarin-fused are great interest in field synthetic organic chemistry. Several been synthesized by using different strategies such as multistep method, one-pot multi-component protocol, coupling condensation method. wide applications stimulated...

We report the fabrication of self-assembled Co3O4 nano-flake material by dissociation CoCl2.6H2O under basic medium using co-precipitation method. The electronic/crystalline structure and morphology elemental purity have been analyzed UV–Vis, fluorescence, powder X-ray diffraction, field emission scanning electron microscopy, energy dispersive measurement. has demonstrated excellent catalytic activity in one-pot multicomponent synthesis tetrahydrobenzo[b]pyran 2-aryl-1,3-benzothazole...

Abstract The design of efficient catalyst for the aza‐Michael addition aromatic amines to conjugated alkenes is a crucial area in organic synthesis. This work employs fabrication sheet‐like CuCo ₂ O ₄ material as effective heterogeneous aza‐Michale reactions. was prepared via oxalate decomposition method and extensively characterized using various characterization techniques such powder X‐ray diffraction (XRD), field emission scanning electron microscopy (FESEM), energy dispersive (EDX),...