cis-polybutadiene was functionalized using in–situ generated dmd as oxidant and tetra-n-butyl ammonium bromide as phase transfer catalyst (ptc). the epoxidation process was investigated by 1hnmr spectroscopy. 1hnmr spectrum analysis of products confirms the absence of ring opening side products in epoxidation reaction. various factors such as reaction temperature, reaction time and the concentr...

Spinel structured Mn3O4, Co3O4 and Fe3O4 nanoparticles were prepared, characterized, and tested in degradation of aqueous phenol in the presence of peroxymonosulfate. It was found that Mn3O4 and Co3O4 nanoparticles are highly effective in heterogeneous activation of peroxymonosulfate to produce sulfate radicals for phenol degradation. The activity shows an order of Mn3O4>Co3O4>Fe3O4. Mn3O4 coul...

Chiral and C2-symmetric seven-membered cycloalkanones 2--6 bearing 1,2-diphenylethane-1,2-diamine and cyclohexane-1,2-diamine backbones were synthesized and evaluated their asymmetry inductive behaviours in an asymmetric epoxidation of stilbene with oxone. Although the reaction of the ketones 2 and 3 of a 1,2-diphenylethane-1,2-diamine backbone gave stilbene oxide in trace to 31% yield, those o...

Catalytic degradation of tartrazine in the presence Oxone? activated by a catalyst constituted cobalt supported on nanocomposite smectite with chitosan-derived carbon was investigated. The synthesized using impregnation followed carbonization at 773 K an inert atmosphere. previously fully characterized appropriate characterization methods, including XRPD, XPS, FTIR, HR-TEM, and low-temperature ...

Wastewater from the olive oil industry is an environmental problem which growing in Mediterranean region. Presence of phenolic compounds and high organic matter load are characteristics this effluent that make it difficult to treat. In study, applicability sulfate radical based advanced oxidation processes (SRbAOPs), using peroxymonosulfate (PMS) as oxidant, was evaluated treatment synthetic mi...