Chemical reduction technique was used to synthesize nickel powder using hydrazine hydrate as reducing agent, nickel chloride hexahydrate as precursor and polyvinylpyrrolidone (PVP) as capping agent in ethylene glycol medium. Experiments were carried out with mole ratios 13:1 and 20:1 of hydrazine to nickel chloride hexahydrate by keeping the amounts of ethylene glycol and NaOH as constant. Vari...

A series of new 2-[(1-substituted phenylethylidine) hydrazine]-N-phenyl-1H-benzo[d]imidazole-1-carbothioamides (4a-n) were designed and synthesized to have the pharmacophoric elements essential for anticonvulsant activity. The key step in the synthesis of the title compounds involves the reaction of 2-mercaptobenzimidazole with hydrazine hydrate, substituted acetophenones and phenylisothiocyana...

An indole hydrazone has successfully been synthesized employing Schiff base reaction conditions starting from 4,6-dimethoxy-2,3-diphenylindole-7-carbaldehyde with hydrazine hydrate. The of this compound acetone yielded based imine compound. structure targeted was identified by mass and 1H spectroscopy along single crystal X-ray diffraction technique. Also, bromination bis-indole N-bromo succini...

Materials: Chemicals were purchased from Sigma-Aldrich BV and used as received: the surfactants, sodium bis(2-ethylhexyl)sulphosuccinate (Na-AOT, 99%) and 4(1,1,3,3-Tetramethylbutyl)phenyl-polyethylene glycol (Triton-X 100, 99.999%); the solvents, n-heptane (99.9%) and toluene (≥99.5%); the metal precursors, chloroplatinic acid hydrate (99.9%), iron chloride (≥99%), cobalt acetate tetrahydrate ...

6-carbethoxy-5-(3'-bromophenyl)-3-aryl-2-cyclohexenones 2a-j were obtained from the1-aryl-3-(3'-bromophenyl)-2-propene-1-ones 1a-j by micheal addition of ethyl acetoacetate, followed by internal claisen condensation. reaction of 2a-j with hydrazine hydrate afforded the corresponding 6-aryl-4-(3'-bromophenyl)-3-oxo-2,3a,4,5-tetrahydro-2h-indazoles 3a-j. the structures of newly syn...

reaction of aryl methyl ketone with isatin in the presence of a base afforded 2- arylquinoline-4-carboxylic acid (3). reaction of diazomethane with compound 3 yielded the ester 4. compound 5 was prepared from the reaction of n, n'-dialkylethyl (or propyl) arnine with 4. addition of hydrazine hydrate to compound 4a gave 2- (2- pyridyl) quinoline-4-carboxylic acid hydrazide (6). reaction of ...

The CuSnO3:SiO2 catalyst was synthesized by hydrothermal method. polycrystalline products were analyzed using various physical investigative techniques including XRD, SEM, TEM and BET surface area. present study deals with one-pot, four component reaction of aldehydes, malononitrile hydrazine hydrate ethyl acetoacetate in the presence catalytic amount Silica grafted CuSnO3 ethanol at 70°C to pr...

Cross-linked sulfonated polyacrylamide (Cross-PAA-SO3H) attached to nano-Fe3O4 as an efficientheterogeneous solid acid catalyst has been used for the preparation of spiro[pyrazoloquinoline-oxindoles]and spiro[chromenopyrazolo-oxindoles] through a four-component reactions of phenylhydrazineor hydrazine hydrate, isatins, ketoesters and naphthylamine or 2-naphthol under reflux co...

An effective and rapid method for the detection of hydrazine hydrate is urgently needed as a result its high toxicity extensive use. Here, copper nanoparticles supported on carbon (written as: Cu NP/C) oxide polycrystalline solids CuO PS), synthesized by calcining same metal–organic framework at temperature, were respectively used electrode materials electrochemical sensing hydrazine. The resul...