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• 996-98-5 oxalic acid hydrazide 
• 90-02-8 salicylaldehyde 

Relevant academic research and scientific papers

Bis-dioxomolybdenum (VI) oxalyldihydrazone complexes: Synthesis, characterization, DFT studies, catalytic epoxidation potential, molecular modeling and biological evaluations

Two cis-bis-dioxomolybdenum oxalylsalicylidenedihydrazone complexes (MoO2L1 and MoO2L2) were synthesized via the complexation of dioxomolybdenum (VI) acetylacetonate with oxalylsalicylidenedihydrazone (H2L1) and p-sodium s

A highly selective fluorescent sensor for the detection of Al3+ and CN- in aqueous solution: Biological applications and DFT calculations

A new "turn-on fluorescence type" chemosensor 1 (N′1,N′2-bis((E)-2-hydroxybenzylidene)oxalohydrazide) with a simple structure was devised and synthesized. In aqueous solution, receptor 1 could efficiently detect both Al3+ and CN- at

Bovine serum albumin–vanadium complex hybrid: Synthesis, crystal structure, SOD activities and asymmetric catalytic oxidation of sulfides

Two symmetrical double-sided Schiff base ligands, H4L1 and H4L2, were synthesized by condensation of salicylaldehyde and 2-hydroxy-1-naphthaldehyde with oxalodihydrazine, respectively. The crystal structures of their vanadium complex

N1,N2-Bis[1-(2-hydroxyphenyl)methylidene] ethanedihydrazide as a neutral ionophore for preparation of a new Ho 3+ PVC-membrane sensor

N1,N2-Bis[1-(2-hydroxyphenyl)methylidene] ethanedihydrazide (MEH) was used as new compound which plays the role of an excellent ion carrier in the fabrication of a Ho(III) membrane electrode. The electrode shows a good selectivity fo

Physicochemical studies on some selected oxaloyldihydrazones and their novel palladium(II) complexes along with using oxaloyldihydrazones as corrosion resistants

New palladium (II) oxaloyldihydrazone complexes are reported and characterized. The mode of bonding as well as the structure of the isolated compounds have been ascertained on the basis of data obtained from elemental analyses (CHNM), spectral (UV-Vis., IR, mass and 1H NMR) and thermal (TG and DTA) measurements. Some optical parameters such as indirect optical band gap and refractive index were estimated for the isolated compounds. The inhibitive properties of all synthesized hydrazones toward the corrosion of carbon-steel in 1?M HCl solutions were tested. The adsorption of hydrazone inhibitors on steel surface proceeded as a spontaneous first order reaction.

Dinuclear vanadium, copper, manganese and titanium complexes containing O,O,N-dichelating ligands: Synthesis, crystal structure and catalytic activity

O,O,N-or O,N-dichelating ligands, H4L1, H 4L2, derived from new bis(hydroxybenzylidene)-substituted terephthalo and oxalo hydrazides were prepared and characterized by FT-IR and NMR spectroscopy (H4-L1 = dicondensation of salicylaldehyde and terephthalic acid dihydrazide, H4L2 = dicondensation of sali-cylaldehyde and oxalic acid dihydrazide). [{VO 2}2(H2L1)] (1), [{Cu(CH 3OH)}2(L1)] (2), [{Mn(CH3OH)} 2(L1)] (3) and [TiO(H3L1) 2] (4) complexes of the potentially hexadentate 2[ONO] donor hydrazone ligand [L1]4 were synthesized by reaction of the appropriate metal salts with H4L1. The complexes [{VO(CH3O)(CH3OH)}2(L2)] (5), [{Cu(CH3OH)}2(L2)] (6), [{Mn(H 2O)2(CH3OH)}2(L2)] (7) and [{TiO(CH3OH)}2(L2)]·2H2O (8) were synthesized by the reaction of corresponding metal salts with H 4L2. All complexes were characterized by microanalyses, FT-IR, UV-Vis and NMR spectroscopic methods. The crystal structures of 1 and 5 were established by X-ray analyses. Compound 1 is a one-dimensional coordination polymer. The catalytic potential of the complexes was evaluated for oxidation of hydrocarbons including cycloalkenes, cyclic alkanes and benzylalcohol using H2O2 as terminal oxidant. Of the studied aroylhydrazone complexes, 4 showed the best selectivity and activity as catalyst.

Highly efficient divanadium(V) pre-catalyst for mild oxidation of liquid and gaseous alkanes

A new binuclear oxovanadium(V) complex bearing an NO2-donor Schiff base ligand, [{VO(EtO)(EtOH)}2(1κ2O,κN: 2κ2O,κN-L)]·2H2O (H4L = bis(2-hydroxybenzylidene)oxalohydrazonic acid) was prepared and fully characterized by IR, 1H NMR and electronic spectroscopies, elemental analysis and single crystal X-ray diffraction. In the presence of 2-pyrazinecarboxylic acid (PCA) or another acid promoter, this compound acts as a highly efficient pre-catalyst towards the oxidation of gaseous and liquid alkanes by aqueous H2O2 under mild conditions, in aqueous MeCN. Total yields of oxygenates up to 45% and overall turnover numbers up to 7.8 × 103 are achieved.

SYNTHESIS AND CHARACTERIZATION OF CHROMIUM(III), MANGANESE(III), IRON(III) AND COBALT(III) COMPLEXES OF DIHYDRAZONES DERIVED FROM SALICYLALDEHYDE AND ALIPHATIC DICARBOXYLIC ACID DIHYDRAZIDES

Two types of chromium(III), manganese(III), iron(III) and cobalt(III) complexes, M2LX4nH2O and M2LX2.nH20, where X=Cl, NO3, OAc or OH, n=0-2 and L= a dihydrazone derived from salicylaldehyde and oxalic acid dihydrazide (osdH4), malonic acid dihydrazide (m