139593-54-7

Upstream product

• 118-93-4 o-hydroxyacetophenone 
• 107-15-3 ethylenediamine 
• 78605-60-4 2-hydroxy-2-(trifluoromethyl)chroman-4-one 
• 109-81-9 N-methyl-ethane-1,2-diamine 

Downstream Products

• 91915-31-0 2,2′-{ethane-1,2-diylbis[nitrile(1E)eth-1-yl-1-ylidene]}diphenol 

Relevant academic research and scientific papers

Synthesis, characterization, and X-ray crystal structures of copper(II) and nickel(II) complexes with Schiff base

New copper(II) complexes, [Cu2L1L2] · ClO4 (I) and [Ni(L3)2] (II), where L1 is the monoanionic form of 2-[1-(2-emthylaminoethylimino)ethyl] phenol, L2 is the dianionic form of N,N′-ethylene-bis(2- hydroxyacetophenonylideneimine), L3 is the mono-anionic form of 2-(1-iminoethyl)phenol, were prepared and characterized using elemental analysis, FT-IR spectroscopy, and X-ray single-crystal diffraction. In complex I, the Cu(1) atom is coordinated by the NNO tridentate ligand L1 and the two phenolate O atoms of L2, forming a square pyramidal geometry. The Cu(2) atom in complex I is coordinated by the NNOO tetradenate ligand L2, forming a square planar geometry. The Ni atom in complex II is coordinated by two phenolate O and two imine N atoms from two ligands L 3, forming a square planar geometry. In the crystal structure of I, the perchlorate anions are linked to the dinuclear copper(II) complex cations through intermolecular N-H.O hydrogen bonds. In the crystal structure of II, the mononuclear nickel complex molecules are linked through intermolecular N-H.O hydrogen bonds, forming a trimer.

Exploration of selective recognition of iodide with dipodal sensor: 2,2′-[ethane-1,2-diylbis(iminoethane-1,1-diyl)]diphenol

A dipodal fluorescent receptor, 2,2′-[ethane-1,2-diylbis(iminoethane- 1,1-diyl)]diphenol (2), with amine and hydroxyl moieties as binding sites has been synthesised and characterized with spectroscopic methods and single crystal X-ray techniques. The reco

2-Hydroxyacetophenone and ethylenediamine condensed Schiff base: Fluorescent sensor for Al3+ and PO43?, biological cell imaging and INHIBIT logic gate

The condensation product of 2-hydroxyacetophenone and ethylene diamine (L) acts as fluorescent sensor for Al3+ by “off-on” mode over the metal ions – Na+, K+, Ca2+, Mn2+, Fe2+, Fe3+/s

Hexacoordinate organosilicon(IV) compounds with a tetradentate azomethine ligand

Hexacoordinate silicon compounds with the tetradentate azomethine ligand N, N′-ethylenebis(2-hydroxyacetophenoneimine) have been prepared and characterized by elemental analyses, molecular weight determinations and spectral (IR, 1H, 13/su

Biomimetic complexes of Mn(II), Fe(III), Co(II), and Ni(II) with 1,10-phenanthroline and a salen type ligand: tailored synthesis, characterization, DFT, enzyme kinetics, and antibacterial screening

A symmetrical tetradentate Schiff base, o-HACPHENEN, was prepared by condensation of 1,2-bis(ethylenediamine) with o-hydroxyacetophenone in 1:2 molar ratio. The Schiff base ligand and 1,10-phenanthroline were used for the tailored synthesis of four mixed-

Solvent-Dependent Bending Ability of Salen-Derived Organic Crystals

The formation of plastic or brittle organic crystals of salen derivatives that depend on the solvents employed for crystallization is demonstrated. Large yellow crystals (ranging from mm to cm size) of ten different salen derivatives were obtained and inv

Synthesis and antibacterial studies of some reduced schiff base derivatives

A series of N,N-substituted ethylene-1,2-diamine derivatives have been prepared from reaction of 2-hydroxybenzaldehyde derivatives and 1,2-diamine derivatives in the presence of NaBH4 through Schiff base intermediate. The synthesized compounds were screened for their antibacterial activities. Compound SB01, SB02 and SB09 displayed significant activity at MIC ranges from 0.40-6.25 μg/mL.

Methylene spacer-regulated structural variation in cobalt(II/III) complexes with bridging acetate and salen- or salpn-type Schiff-base ligands

Two linear, trinuclear mixed-valence complexes, [CoII{(μ- L1)-(μ-OAc)CoIII(OAc)}2] (1) and [Co II{(μ-L2)(μ-OAc)CoIII(OAc)}2] (2) and two mononuclear CoIII complexes [CoIII{L 3}(OAc)] (3), and [CoIII{L4}(OAc)] (4) were prepared and the molecular structures of 1, 2 and 4 elucidated on the basis of X-ray crystallography [OAc = Acetate ion, H2L1 = H 2Salen = 1,6-bis(2-hydroxyphenyl)-2,5-diazahexa-1,5-diene, H 2L2 = H2Me2-Salen = 2,7-bis(2-hydroxyphenyl)-2,6-diazaocta-2,6-diene, H2L3 = H2Salpn = 1,7-bis(2-hydroxyphenyl)-2,6-diazahepta-1,6-diene, H 2L4 = H2Me2Salpn = 2,8-bis(2-hydroxyphenyl)-3,7-diazanona-2,7-diene]. In complexes 1 and 2, the acetate groups show both monodentate and bridging bidentate coordination modes, whereas chelating bidentate acetate is present in 4. The terminal Co IIIN2O4 centres in 1 and 2 exhibit uniform facial arrangements of both non-bridged N2O and bridging O 3 donor sets and the CoII centre is coordinated to six (four phenoxo and two acetato) oxygen atoms of the bridging ligands. The effective magnetic moment at room temperature corresponds to the presence of high-spin CoII in both 1 and 2. The complexes 1 and 2 are thus CoIII(S = 0)-CoII(S = 3/2)-CoIII(S = 0) trimers. Complexes 3 and 4 are monomeric and diamagnetic containing low-spin CoIII(S = 0) with chelating tetradentate Schiff base and bidentate acetate. Calculations based on DFT rationalise the formation of trinuclear or mononuclear complexes. Wiley-VCH Verlag GmbH & Co. KGaA, 2008.

Reactions of aromatic and heteroaromatic β-amino-β-polyfluoroalkylvinyl ketones with ethylenediamine. A new synthesis of N,N′-unsubstituted imidazolidines

The reactions of aromatic and heteroaromatic β-amino-β-polyfluoroalkylvinyl ketones with ethylenediamine results in the formation of 2,3-dihydro-1H-1,4-diazepines, N,N′-unsubstituted imidazolidines, or N,N′-ethylenebis(aminovinyl ketones). The reaction route depends on the reaction conditions, the nature of the substituent at the carbonyl group, and the number of fluorine atoms in the polyfluoroalkyl radical.