6310-75-4

Upstream product

• 90-02-8 salicylaldehyde 
• 112-24-3 triethylentetramine 
• 89-95-2 2-methyl-benzyl alcohol 

Downstream Products

• 139702-04-8 1,12-bis(2-hydroxybenzyl)-1,5,8,12-tetraazadodecane 
• 73939-59-0 ThCl₄*C₂₀H₂₆N₄O₂ 
• 73939-60-3 ThI₄*C₂₀H₂₆N₄O₂ 
• 115287-85-9 {V(bis(salicyldehyde)triethylenetetramine)Cl₂}Cl 

Relevant academic research and scientific papers

Inducing spin crossover in amphiphilic iron(III) complexes

Thermal spin crossover (SCO) was induced in a high-spin FeIII complex by alkylation of the polyamino ligand backbone. The SCO profile was responsive to chain length with partial crossover observed with C6 alkylation and full transiti

Catalytic synthesis of benzimidazoles and organic carbamates using a polymer supported zinc catalyst through CO2 fixation

Utilization of carbon dioxide in chemical fixation for synthesis of fine chemicals like benzimidazoles, organic carbamates, etc. is in high demand in recent years as carbon dioxide is a cost effective, sustainable, and green renewable C1 source. In this article we present the design and synthesis of an organically modified polystyrene bound heterogeneous [PS-Zn(ii)-SALTETA] catalyst. The catalyst has been characterized thoroughly by Fourier transform infrared spectroscopy, atomic absorption spectroscopy, thermo gravimetric analysis, PXRD, SEM and EDAX studies. The catalyst was used for cyclization of o-phenylenediamines through insertion of carbon dioxide in order to produce benzimidazoles in the presence of dimethylamine borane (DMAB). The developed catalytic procedure is sustainable, economical and efficient owing to the utilization of ethanol/water as a biodegradable and environment friendly solvent system. Besides benzimidazole production the catalyst was also very active for manufacture of organic carbamates from anilines and n-butyl bromide under atmospheric CO2 pressure under solvent free conditions at room temperature and the catalytic protocol showed outstanding functional group tolerance. Moreover the catalyst is highly recyclable and reusable.

Binding multidentate ligands to Ni2+: Kinetic identification of preferential binding sites

The kinetics of the reactions between [Ni(MeOH)6]2+ (hereafter Ni2+) and a variety of neutral Schiff base multidentate ligands have been measured in methanol at 25.0°C using stopped-flow spectrophotometry. The ligands cont

Synthesis, catalytic activity and phytotoxicity of a supported nickel(II) Schiff base complex

A supported Ni(II) complex has been synthesized and characterized by FTIR, UV-vis diffuse reflectance spectroscopy, thermogravimetric analysis and scanning electron microscopy. Its catalytic activity was evaluated for alkyne-azide coupling and benzothiazo

Merging constitutional and motional covalent dynamics in reversible imine formation and exchange processes

The formation and exchange processes of imines of salicylaldehyde, pyridine-2-carboxaldehyde, and benzaldehyde have been studied, showing that the former has features of particular interest for dynamic covalent chemistry, displaying high efficiency and fast rates. The monoimines formed with aliphatic α,ω-diamines display an internal exchange process of self-transimination type, inducing a local motion of either "stepping-in- place" or "single-step" type by bond interchange, whose rate decreases rapidly with the distance of the terminal amino groups. Control of the speed of the process over a wide range may be achieved by substituents, solvent composition, and temperature. These monoimines also undergo intermolecular exchange, thus merging motional and constitutional covalent behavior within the same molecule. With polyamines, the monoimines formed execute internal motions that have been characterized by extensive one-dimensional, two-dimensional, and EXSY proton NMR studies. In particular, with linear polyamines, nondirectional displacement occurs by shifting of the aldehyde residue along the polyamine chain serving as molecular track. Imines thus behave as simple prototypes of systems displaying relative motions of molecular moieties, a subject of high current interest in the investigation of synthetic and biological molecular motors. The motional processes described are of dynamic covalent nature and take place without change in molecular constitution. They thus represent a category of dynamic covalent motions, resulting from reversible covalent bond formation and dissociation. They extend dynamic covalent chemistry into the area of molecular motions. A major further step will be to achieve control of directionality. The results reported here for imines open wide perspectives, together with other chemical groups, for the implementation of such features in multifunctional molecules toward the design of molecular devices presenting a complex combination of motional and constitutional dynamic behaviors.

Use of immobilized transition metal complexes as recyclable catalysts for oxidation reactions with hydrogen peroxide as oxidant

A tetradentate Schiff base (teta), obtained from triethylenetetramine and salicylaldehyde, has been covalently bonded to divinylbenzene cross-linked chloromethylated polystyrene. This chelating ligand, abbreviated as PS-teta (PS = polymeric support), reacts with metal chlorides (Cu2+, Co 2+, and Ni2+) in methanol to give polymerbound transition metal complexes, PS-Cu(II)teta/(Cat-1), PS-Ni(II)teta/(Cat-2), and PS-Co(II)teta/(Cat-3), formation of which has been established by various physiochemical methods and spectroscopic techniques. The catalytic potential of these materials has been tested for the oxidation of various alkenes, alkanes, alcohols, and thioethers in the presence of 30% H2O2 as an oxidant. At the same time, these catalysts are very stable and could be reused in oxidation reactions for more than five times without noticeable loss of their catalytic activity. Springer Science+Business Media B.V. 2011.

New dicopper(II/II) complexes with oxygen and sulfur bridges: Synthesis, characterization and cyclic voltammetric studies

A new family of acetato oxygen and dithiocarbonato sulfur bridged dinuclear copper(II) complexes with weak imidazolidine bridge support is described for the first time; these complexes are studied for possible synthetic models of dicopper active sites.

Syntheses of polystyrene supported chelating resin containing the Schiff base derived from salicylaldehyde and triethylene tetramine and its copper (II), nickel (II), cobalt (II), iron (III), zinc (II), cadmium (II), molybdenum (VI), zirconium (IV) & uran

A new polymer-anchored chelating ligand has been synthesized by the reaction of chloromethylated polystyrene (containing 0.94 mmol of Cl per gram of resin and 1% cross-linked with divinylbenzene) and the Schiff base derived from salicylaldehyde and trieth

Mixed Ligand Complexes of Chromium(III) containing some Bidentate Amines and Quadridentate Schiff Base Ligands

A number of new mixed ligand complexes of chromium(III) using two diamines and three Schiff bases have been synthesised, having the compositions: X*nH2O, 2-)NCS)2>NCS, 2-)NCS)2>NCS, NCS, where L=NH2(CH3)3NH2 or NH2(CH2)6NH2; X=Cl or NCS; n=0 or 4.Molar conductance data reveal that dichloro and thiocyanato complexes of the diamines, thiocyanato complexes of the salicylaldehyde Schiff base of triethylene tetramine and thiophene 2-aldehyde Schiff base of N,N-bisdiaminoethyl-1,3-propanediamine are 1:1 electrolytes in DMSO while thiocyanato complex with 1,6-diaminohexane is 1:1 electrolyte in nitromethane.But dichloro complex with 1,3-diaminopropane and thiocyanato complex of salicylaldehyde Schiff base of 1,3-diaminopropane are non-electrolytes.Magnetic and spectral data support octahedral stereochemistry for the complexes.