Category: 1691-93-6

Marchetti, Fabio published the artcileSynthesis and characterization of copper(I) and copper(II) coordination compounds containing 4-acylpyrazolon-5-ato ligands. Crystal structure of [(4-trifluoroacetyl-1-phenyl-3-methylpyrazolon-5-ato)bis(triphenylphosphine)copper(I)], SDS of cas: 1691-93-6, the main research area is crystal structure copper trifluoroacetylphenylmethylpyrazolone triphenylphosphine; copper acylpyrazolone derivative preparation triphenylphosphine reduction.

New [(Q)2CuII] and [(Q)2(L)CuII] derivatives (in general QH is 1-R-3-methyl-4-R’-pyrazol-5-one; in particular: Q’H: R = C6H5, R’ = C6H5(C=O); Q”H: R = C6H5, R’ = CH3(C=O); QFH: R = C6H5, R’ = CF3(C=O); QClH: R = C6H5, R’ = CCl3(C=O); QBrH: R = C6H5, R’ = p-BrC6H4(C=O); QAH: R = C6H5, R’ = p-CH3O-C6H4(C=O), QEH: R = C6H5, R’ = C6H13(C=O); QMH: R = CH3, R’ = C6H5(C=O); QDH: R = CH3, R = CH3(C=O); QBH: R = C6H5, R’ = C6H5(C=N(p-CH3C6H4)); L = 2,2′-bipyridine or 1,10-phenanthroline) were synthesized and characterized through anal. and spectral techniques. When (Q)2CuII interacted with an excess of PPh3, reduction to Cu(I) was observed and (Q)Cu1(PPh3)2 complexes were synthesized. (QF)CuI(PPh3)2 was characterized by single crystal x-ray diffraction in monoclinic space group P21/c, R = 0.069. The coordination environment of Cu is a distorted tetrahedron: the P-Cu-P angle is 127.8(1)° and the ligand bite O-Cu-O angle is 87.8(3)°; the Cu-O bond distances are 2.075(7) and 2.109(7) Å, while Cu-P are 2.246(3) and 2.254(3) Å.

Polyhedron published new progress about Crystal structure. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, SDS of cas: 1691-93-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Drozdov, A. published the artcileNew volatile heterocyclic metal diketonates for MOCVD, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is crystal structure copper barium acylpyrazolone phen bipy tetraglyme; acylpyrazolone copper barium phen bipy tetraglyme preparation structure; copper acylpyrazolone phen bipy preparation structure CVD; barium acylpyrazolone phen tetraglyme preparation structure.

The new type of β-diketonate ligand, 4-acylpyrazol-5-ones were used for preparation of Cu(II) and Ba complexes. Two Cu and two Ba complexes containing neutral N- and O-donor ligands (such as phen, bipy, tetraglyme) were structurally characterized by single crystal x-ray diffractometry. The volatility of Cu compounds obtained was studied. The preliminary CVD experiments were conducted.

Journal de Physique IV: Proceedings published new progress about Crystal structure. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Barkanov, Artem published the artcileNIR-OLED structures based on lanthanide coordination compounds: synthesis and luminescent properties, SDS of cas: 1691-93-6, the main research area is lanthanide complex NIR OLED luminescence.

Electroluminescence complexes based on ytterbium and 5-methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-2,4-dihydro-3H-pyrazol-3-one (HL) ligand and various diimine-type ancillary ligands (2,2-bipyridine, bathophenanthroline, 1,10-phenanthroline) have been synthesized, and corresponding crystals were investigated. [Yb(L)3(bipy)] and [Yb(L)3(bath)] complexes have triclinic structure (P-1), while [Yb(L)3(phen)] complex has orthorhombic structure (P212121). The crystallog. parameters were determined The photoluminescence of the complexes demonstrated only bands resulted from 2F5/2→2F7/2 transition and corresponding three Stark subcomponents generated due to the crystal field action. NIR-OLED structures with emitting layers based on the [Yb(L)3(bipy)], [Yb(L)3(bath)], and [Yb(L)3(phen)] complexes have been fabricated, and their electroluminescence demonstrated maxima intensities at 978 and 1005 nm. Comparison of NIR-OLEDs power d. showed that the maximal power densities of 2.17 (978 nm) and 1.92 (1005 nm) μW x cm-2 were determined for the NIR-OLED based on [Yb(L)3(bath)] complex.

Journal of Materials Science published new progress about Crystal structure. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, SDS of cas: 1691-93-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Marchetti, F. published the artcileInfluence of sterically demanding groups on the structure and stability in the solid and solution state of (acylpyrazolonate)bis(phosphine)copper(I) derivatives, HPLC of Formula: 1691-93-6, the main research area is crystal structure copper acylpyrazolonato phosphine complex; copper acylpyrazolonate phosphine preparation structure reaction; pyrazolonate acyl copper phosphine preparation structure.

New neutral derivatives [Cu(L)(PR3)2] (LH = 1-phenyl-3-methyl-4-R1(C:O)-pyrazol-5-one, in detail L1H, R1 = C6H5; L2H, R1 = CH3; L3H, R1 = CF3; L4H, R1 = C6H11; L5H, R1 = C6H5CH2; L6H, R1 = Ph2CH; R = C6H5, p-CH3C6H4, C6H5CH2 or C6H11) and [Cu(L)2] (L = L4, L5 and L6) were synthesized and characterized by anal. and spectroscopic techniques. The x-ray crystal and mol. structures of [Cu(L1)(PCy3)2], [Cu(L5)(PPh3)2] and [Cu(L6)(PPh3)2] were resolved, in which the copper atom is found in a strongly distorted tetrahedral CuO2P2 environment. The interbond angles P-Cu-P, P-Cu-O and O-Cu-O are strongly influenced by the steric properties of PR3 and also to a lesser degree by the 4-acyl moiety of the L donor. [Cu(L)(PR3)2] undergo partial dissociation in chloroform solution through breaking of Cu-P and, when R = Cy, also of Cu-O bonds. [Cu(L4)(PPh3)2] reacts with 1-methylimidazoline-2-thione (Hmimt), with 1,10-phenanthroline (Phen), with 2,9-dimethyl-1,10-phenanthroline (Cupr) and with bis(diphenylphosphino)propane (DPPP), yielding the mixed-ligand compounds [Cu(PPh3)(Hmimt)3](L4), [Cu(L4)(PPh3)(Phen)], [Cu(Cupr)2](L4) and [Cu(DPPP)2](L4), resp.

Inorganica Chimica Acta published new progress about Bond angle, dihedral. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, HPLC of Formula: 1691-93-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Modi, C. K. published the artcileSynthetic, spectroscopic and thermal aspects of some heterochelates, Recommanded Product: 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is transition metal pyrazolylethylideneaminobenzoate benzylideneethylenediamine preparation; reaction kinetics activation energy thermolysis transition metal pyrazolylethylideneaminobenzoate benzylideneethylenediamine; activation entropy enthalpy thermolysis transition metal pyrazolylethylideneaminobenzoate benzylideneethylenediamine; free energy thermolysis transition metal pyrazolylethylideneaminobenzoate benzylideneethylenediamine.

The present article describes the synthesis, structural features and thermal studies of heterochelates [M(SB)(benen)(H2O)]·nH2O [where H2SB = (Z)-2-(2,2,2-trifluoro-1-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)ethylideneamino)benzoic acid, benen = bis(benzylidene)ethylenediamine and M = Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and VO(IV)]. The Schiff base (H2SB) was characterized from elemental anal., IR, 1H and 13C NMR. The heterochelates were characterized from elemental analyses, magnetic measurements, solid state conductivity measurements, IR, reflectance spectra, and thermal studies. The FAB mass spectrum of [Co(SB)(benen)(H2O)] was carried out. The kinetic parameters such as order of reaction (n) and the energy of activation (Ea) are reported using Freeman-Carroll method. The pre-exponential factor (A), the activation entropy (ΔS#), the activation enthalpy (ΔH#) and the free energy of activation (ΔG#) were calculated

Journal of Thermal Analysis and Calorimetry published new progress about Activation energy (thermolysis). 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Recommanded Product: 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Nwankwoala, Reginaid N. P. published the artcileAnti inflammatory property of new pyrazolon derivatives, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is antiinflammatory inflammation pyrazolone derivative phenylbutazone.

The anti inflammatory effects of 4-trifluoroacety1-1-pheny1-3-methy1 pyrazolone (HTFP) and 4-sebacyl-1-bis 1-pheny1-3-methy1 pyrazolone (HSP) were investigated and compared with those of phenylbutazone (PTZ) using carrageenan-induced paw inflammation model in rats. Different doses of PTZ, HTFP and HSP were intra-peritoneally administered to rats and one hour thereafter, inflammation was induced by injecting carrageenan into the left foot of the rat. The right foot received saline. Five (5) rats received carrageenan and saline only. Both the left and right feet were measured hourly for four hours. PTZ, HTFP and HSP significantly reduced carrageenan induced inflammation. 100Mg/kg PTZ caused 62.5 ± 5.25% reduction of the inflammatory response whereas 10mg/kg HTFP and 10mg/kg HSP reduced inflammatory response by 53.6 ± 5.0% and 32.5 ± 4.50% resp. Thus anti-inflammatory properties of these drugs were less at lower doses. These results show that (1) HTFP and HSP possess anti-inflammatory property, (2) HTFP is more potent than HSP and (3) The anti-inflammatory potency of phenylbutazone drug is greatly enhanced by substitution of trifluoroacety1-1-group at position 4 of the pyrazolone mol.

Research Journal of Medicine and Medical Sciences published new progress about Anti-inflammatory agents. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Safety of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Mathur, J. N. published the artcileThermodynamics of americium(3+)-substituted pyrazolone-crown ether adducts, COA of Formula: C12H9F3N2O2, the main research area is americium pyrazolone crown ether adduct.

The thermodn. parameters for the extraction of Am3+ with pyrazolones (HA = HPMBP or HPMTFP) alone as well as their mixtures with one of the crown ethers B15C5 or DCH18C6 were calculated in chloroform at 30° by using the temperature coefficient method. The self-adduct species Am(A)3.HA is enthalpy stabilized. The adduct species Am(A)3.HA.DCH18C6 are stabilized by entropy and opposed by enthalpy. The adduct species Am(A)3.HA.B15C5 (HA = HPMBP) and Am(A)3.B15C5 or Am(A)3.2B15C5 (HA = HPMTFP) are stabilized by enthalpy. These data were correlated with the difference in the nature of binding of the two crown ethers with Am3+.

Solvent Extraction and Ion Exchange published new progress about Complexation enthalpy. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, COA of Formula: C12H9F3N2O2.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Okafor, Emmanuel Chukwuemeka published the artcileThe metal complexes of heterocyclic β-diketones and their derivatives. IX. Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (HPMTFP). Proton, carbon-13, and fluorine-19 NMR, IR, and UV-visible spectral studies, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is UV spectra pyrazolone lanthanide complex; pyrazolone lanthanide complex NMR.

Lanthanon chelates of 3-methyl-1-phenyl-4-trifluoroacetylpyrazol-5-one (LH) were synthesized and investigated. Characterization was by elemental anal., conductivity measurements, Karl Fischer titrations, and IR and 1H NMR spectra. The complexes were neutral chelates with the empirical formula M(L)3.xH2O.yEtOH where for M = La, Nd, Eu, Dy, Er, Pr, and Lu, x = 2 and y = 0, whereas for M = Y and Gd, x = 2 and y = 0.5. 1H, 13C, and 19F NMR, IR, and UV-visible spectral results together with assignments are presented. The parameters of S. P. Sinha (1966) were calculated and discussed for Nd and Er.

Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy published new progress about Bathochromic effect. 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Application of 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Umetani, Shigeo published the artcileSolvent extraction of alkaline earth metals, and lithium with 1-phenyl-3-methyl-4-acylpyrazol-5-ones and trioctylphosphine oxide, Recommanded Product: 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, the main research area is alk earth extraction phenylmethylacylpyrazolone; pyrazolone derivative extraction alk earth; octylphosphine oxide extraction alk earth; lithium extraction pyrazolone derivative.

The synergic extraction of Mg, Ca, Sr, Ba, and Li into cyclohexane or benzene containing 1-phenyl-3-methyl-4-acyl-pyrazol-5-one (HA) [acyl = benzoyl or trifluoroacetyl] and tri-n-octylphosphine oxide (TOPO) was investigated as a function of pH, HA and TOPO concentrations The extracted species when the 4-benzoyl compound was used, were MA2(TOPO)2 (M = Mg, Ca, Sr), BaA2(TOPO)3 and LiA(TOPO)2. When the 4-trifluoroacetyl derivatives was used, the extracted species were the same except for SrA2(TOPO)3. Extraction constants for the synergic extractions were calculated

Analytica Chimica Acta published new progress about Alkaline earth metals Role: PRP (Properties). 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Recommanded Product: 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics

Ghani, Lubna published the artcileLiquid-liquid extraction of Eu(lll) using synergic mixture of 1-phenyl-3-methyl-4-trifluoroacetyl-2-pyrazolin-5-one and crown ethers, Quality Control of 1691-93-6, the main research area is europium HPMTFP crown ether liquid extraction.

Synergic extraction of Eu(III) as representative of rare earth elements was conducted with 0.01 mol dm-3 of trifluoroacetyl-pyrazolin-5-one (HPMTFP) and then with synergic mixture of HPMTFP and crown ethers (benzo-15-crown-5, 18-crown-6, 15-crown-5) in dichloromethane (DCM) from aqueous solution having pH 1.0-3.5. Slope anal. method was used for determining the composition of the synergic adduct i.e. Eu(PMTFP)3 that came out to be Eu(PMTFP)3·2S, where S = neutral oxo-donor and -PMTFP = conjugate base of HPMTFP mol. Selective extraction of Eu(III) was found in the presence of various masking agents like citrate, oxalate, bromide, thiosulfate, chromate ions and of some cations. The accuracy of the developed procedure was checked by analyzing real lake sample (IAEA-SL-3) as a reference material.

SN Applied Sciences published new progress about Actinides Role: TEM (Technical or Engineered Material Use), USES (Uses). 1691-93-6 belongs to class pyrazoles-derivatives, name is 5-Methyl-2-phenyl-4-(2,2,2-trifluoroacetyl)-1H-pyrazol-3(2H)-one, and the molecular formula is C12H9F3N2O2, Quality Control of 1691-93-6.

Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics