A simple and efficient procedure for the synthesis of 2-amino-3-cyanopyridines from aldehydes, ketones, malononitrile, and ammonium acetate via one-pot reaction is reported. Zinc zirconium phosphate (ZPZn) nanoparticles were used as a convenient and efficient catalyst for this multicomponent reaction (MCR) under solvent-free conditions, and fair to excellent yields were achieved. The catalyst w...

Three UV spectrophotometric methods have been developed, simultaneous equation method, multicomponent analysis (II) and derivative spectroscopy method (III). The absorption maxima of the drugs were found to be 247, 259 and 272 nm, respectively for efavirenz, tenofovir disoproxil fumarate and lamivudine in methanol:water (50:50) solvent system. Efavirenz, tenofovir disoproxil fumarate and lamivu...

A simple and efficient procedure for the synthesis of 2-amino-3-cyanopyridines from aldehydes, ketones, malononitrile, and ammonium acetate via one-pot reaction is reported. Zinc zirconium phosphate (ZPZn) nanoparticles were used as a convenient and efficient catalyst for this multicomponent reaction (MCR) under solvent-free conditions, and fair to excellent yields were achieved. The catalyst w...

The assessment of multicomponent adsorption pentavalent metalloids is important since they are often found together in groundwaters and mining runoff. For this purpose, As(V), Sb(V) P(V) onto iron-coated cork granulates was studied binary ternary systems. Data from equilibrium kinetic studies revealed that uptake these contaminants a multilayer, heterogeneous process well described by Freundlic...

In this research, Fischer Tropsch synthesis (FTS) has been modeled in the fixed bed chromatographic reactor for the first time by applying a rather complex dispersed plug flow model for fluid phase and linear driving force (LDF) model for adsorbent. Model equations are dynamic, multi-component, non-linear and heterogeneous including reaction and adsorption simultaneously Complex kinetics fo...

BACKGROUND Multimodal ion exchangers, containing ligands combining charged and hydrophobic moieties, exhibit enhanced separation compared to monomodal exchangers under low loading conditions. Commercial applications often require high protein loads such conditions have not been investigated extensively, especially for multimodal anion exchangers. This work compares adsorption by frontal chromat...

This paper presents the results of a study process hydrogenation 1-hexene in ethanol and phenylacetylene hexanewater suspension over multicomponent nickel skeleton catalysts It was demonstrated that activity is substantially dependent on nature additives introduced into bearing alloy. Introduction Cu, Pb Ta leads to an increase (W=196-295cm 3 /min-gNi). The major mechanism effect emulsion compo...