n-propylsulfamic acid supported onto magnetic fe3o4 nanoparticles (mnps-psa) was investigated as an efficient and magnetically recoverable catalyst for the one-pot synthesis of substituted coumarins from the reaction of coumarin with variety aromatic aldehydes in high to excellent yield at room temperature under solvent-free conditions. the magnetic nanocatalyst can be readily recovered easily ...

An efficient procedure and green route has been developed by using eco-friendly green synthesized palladium nanoparticles (Pd-NPs) as reusable heterogeneous nanocatalyst (Pd@nanocat) for the synthesis of diaryl ethers from the cross coupling reaction of the aryl halides with the phenol in the presence of dimethylsulfoxide (DMSO) as a solvent at 110 oC under natural ligand condition capped Pd-NP...

A simple and efficient method for the synthesis of quinolines and polycyclic quinolines using Li+ modified nanoporous Na+-montmorillonite is described. This new nanocatalyst proceeds via Friedlander annulation under solvent-free conditions. It describes our observations about a trend of catalytic activity of Lithium cation in nanoporous Na+-montmorillonite. In this study, several types of 1,3-d...

Graphene films were fabricated over synthesized MCM-41 nanocatalyst by chemical vapordeposition method, and the reaction was carried in atmospheric pressure at 750˚C. Acetylenegas used as a carbon precursor and the synthesis reaction took place in hydrogen atmosphere.Mesoporous MCM-41 was synthesized at room temperature, using wet chemical method. Thesynthesized metal free catalyst was characte...

Recycling consumed commercial polymers is considered a highly important issue that chemists and engineers must take care of to develop the proper recycling techniques. The main objective this study find radical solution problems plastic waste by (water bottles) studying effect produced Degraded Polyethylene Terephthalate (DPET) on properties paints. DEPT was added in six quantities paint mixtur...

Chemoselective hydrogenation of unsaturated aldehyde to alcohol has attracted growing interests in recent years due its widespread applications fine chemicals. However, the C=O bond was thermodynamically and kinetically unfavorable over C=C bond. Thus, obtain from is very difficult most catalytic systems. In this work, ZnAl-hydrotalcite-supported cysteine-capped Au25 nanoclusters were used as p...

Mass transfer during the reaction process is limited in industrial biodiesel manufacture. Therefore, to overcome this problem, a reactor from castor oil transesterified using ZnO nanocatalyst was designed. can be used as catalyst for production due nature of which has high catalytic activity, low material costs and environmentally friendly. This study aims design manufacture zinc oxide (ZnO) na...

A novel AgO/ZnO/HY-zeolite bimetallic nanocatalyst was designed and synthesized by an impregnation method. The purpose of this to remove dibenzothiophene as the primary sulfur content from a model light gasoil in catalytic oxidative desulfurization (ODS) process. characteristics were determined Fourier transform IR spectroscopy, Brunauer-Emmett-Teller analysis, scanning electron microscopy, X-r...

a new magnetic nanocatalyst has been prepared using immobilization of vanadate onto aminopropyl functionalized sio2/fe3o4(vo3-/nh3+-sio2/fe3o4). the obtained magnetic catalyst was characterized by ft-ir, xrd, vsm and sem techniques and used for sulfoxidation of sulfide compounds to the correspondingsulfoxides in presence of h2o2 as oxidant at room temperature. the optimum of reaction conditions...