Tag: M.W=250-300

Dong, W.-K. published the artcileSupramolecular chelate copper(II) complex with 4-[(ethoxyimino)(phenyl)methyl]-5-methyl-2-phenyl-1Hpyrazol-3(2H)-one: Synthesis, crystal structure, and properties, Recommanded Product: 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, the publication is Russian Journal of General Chemistry (2013), 83(6), 1131-1135, database is CAplus.

A supramol. Cu(II) complex, [Cu(L)₂(H₂O)]·C₂H₅OH (1) {HL (2) = 4-[(ethoxyimino)(phenyl)methyl]-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one} was synthesized and characterized structurally. The structure of the Cu(II) complex consists of one Cu(II) atom, two bidentate L-units, one coordinated H₂O and one crystallization ethanol mol. The Cu(II) atom of the complex has a slightly distorted tetragonal pyramidal geometry. Moreover, every Cu(II) complex mol. links four other mols. into an infinite 2D-layer supramol. structure via intermol. O-H…O, O-H…N, and C-H…O hydrogen bonds.

Russian Journal of General Chemistry published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Recommanded Product: 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Zong, Ziao published the artcileCrystal structures and anticancer activities of five novel pyrazolone-enamine transition metal complexes with 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one, Synthetic Route of 4551-69-3, the publication is Journal of Molecular Structure (2018), 333-339, database is CAplus.

Three pyrazolone-enamine ligands HL¹, HL² and H₂L³ were synthesized by the reaction of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HPMBP) with Me 4-aminophenylacetate, 4-aminobenzamide and 2-amino-5-methylphenol, resp., followed by tautomeric reactions. Their complexes [Zn(L¹)₂] (1), [Co(L²)₂(H₂O)₂] (2), [CuL³(H₂O)₂] (3a), [ZnL³(H₂O)₂] (3b) and [CdL³(H₂O)₂] (3c) were synthesized and characterized by single-crystal x-ray, IR, elemental anal., ¹H NMR, TGA. Single-crystal x-ray anal. reveals that HL¹, complex 1 and complex 2 are all connected by hydrogen bonds, C-H···π interactions and van der Waals forces to form the 3-D network. The Zn(II) ion in complex 1 is four coordinated to two L¹ ligands. The Co(II) ion in complex 2 is six coordinated to two L² ligands and two water mols. The metal ions in complexes 3a, 3b and 3c are five coordinated to one L³ ligand and two water mols. After coordination, the structures of the ligands reversed to the Schiff base structures. Moreover, the anticancer activities were investigated, complexes 3a and 3b can effectively inhibit the proliferation of human breast cancer MDA-MB-231 cells. Besides, complexes 1, 2, 3b and 3c exhibit excellent luminescence properties.

Journal of Molecular Structure published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C37H30ClIrOP2, Synthetic Route of 4551-69-3.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Xu, Li published the artcileSupramolecular structure of bis(4-benzoyl-3-methyl-1-phenyl-5-(2H)-2-pyrazolonato)copper(II), COA of Formula: C17H14N2O2, the publication is Asian Journal of Chemistry (2013), 25(13), 7629-7630, database is CAplus.

The mol. of the Cu(II) complex with the empirical formula C₃₄H₂₆N₄O₄Cu, bis(4-benzoyl-3-methyl-1-phenyl-5(2H)-2-pyrazolonato)copper(II), is rigorously centrosym. [symmetry codes: -x + 1, -y + 1, -z + 1]. Each Cu(II) atom is four-coordinated by two O atoms (O1 and O1#) from pyrazolone ring in deprotonated enol-form and other two O atoms (O2 and O2#) in carbonyl-form forming a rigorously square planar geometry. In the crystal structure, weak intermol. C-H···O H bonds link the title mols. into an infinite 1-dimensional supramol. chains structure.

Asian Journal of Chemistry published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C28H18O4, COA of Formula: C17H14N2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Liu, Deng-Feng published the artcileRing-opening copolymerization of CHO and MA catalyzed by mononuclear [Zn(L²)(H₂O)] or trinuclear [Zn₃(L²)₂(OAc)₂] complex based on the asymmetrical bis-Schiff-base ligand precursor, Application of 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, the publication is Journal of Molecular Catalysis A: Chemical (2014), 136-145, database is CAplus.

Based on the half-unit Schiff-base ligand precursor HL¹ and the asym. bis-Schiff-base ligand precursor H₂L² synthesized from the reaction of 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP), o-phenylenediamine and/or o-vanillin, three complexes containing low toxicity Zn²⁺ ions, mononuclear [Zn(L¹)₂] (1), [Zn(L²)(H₂O)] (2) and trinuclear [Zn₃(L²)₂(OAc)₂] (3), are obtained, resp. Complex 1 proves to be inactive, resulting from its saturated octahedral coordination environment around the central Zn²⁺ ion, while in complex 2 or 3, the unsaturated five and/or four-coordinate coordination environment for the catalytic active centers (Zn²⁺ ions) permits the monomer insertion for the effective bulk or solution copolymerization of CHO (cyclohexene oxide) and MA (maleic anhydride). All the bulk copolymerizations afford poly(ester-co-ether)s, while some of the solution copolymerizations produce perfectly alternating polyester copolymers. Moreover, higher polymerization temperature, lower catalyst and co-catalyst concentration and shorter reaction time are helpful for the formation of alternating copolymers in bulk or solution copolymerization Of the three co-catalysts, DMAP (4-(dimethylamino)pyridine) is found to be the most efficient, while an excess thereof is detrimental for chain growth of the copolymers.

Journal of Molecular Catalysis A: Chemical published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Application of 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Yan, Xingchen published the artcileCrystal structures and theoretical calculations of two peculiar compounds derived from 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one, Product Details of C17H14N2O2, the publication is Journal of Molecular Structure (2014), 609-616, database is CAplus.

A potassium coordination polymer [K₂(PMBP)₂(H₂O)₃]_n·2nH₂O (1) was prepared by reaction of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (HPMBP) with potassium hydroxide. The single crystal of the supermol. C₆H₁₁NH⁺₃·PMBP^– (2) was then obtained by utilizing cyclohexylamine as the proton acceptor. It is a diketonate salt with an organic base where the PMBP^– anions are stabilized by the intermol. weak interactions (including hydrogen bonding, π-π stacking interactions and Van der Waals forces), rather than by coordination to a metal center. Geometrical parameters of the isolated PMBP^– anion were optimized through quantum chem. calculation to simulate the state without any disturbances or interactions. Comparison of geometric parameters of compound 1 with the optimized structure of PMBP^– provides an approach to study weak intermol. interactions in the crystal state. The coordination sites and the proton acceptors of hydrogen bonds predicted by theor. calculations are consistent to the exptl. results.

Journal of Molecular Structure published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C19H15NO3, Product Details of C17H14N2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Conroy, Nathan A. published the artcileA Novel Method for Tracer Concentration Plutonium(V) Solution Preparation, Synthetic Route of 4551-69-3, the publication is Analytical Chemistry (Washington, DC, United States) (2016), 88(8), 4196-4199, database is CAplus and MEDLINE.

Preparation of relatively pure low concentration Pu(V) solutions for environmental studies is nontrivial due to the complex redox chem. of Pu. Ozone gas generated by an inexpensive unit designed for household-use was used to oxidize a 2 × 10^-8 M Pu(IV) solution to predominantly Pu(VI) with some Pu(V) present. Over several days, the Pu(VI) in the solution reduced to Pu(V) without further reducing to Pu(IV). The reduction from Pu(VI) to Pu(V) could be accelerated by raising the pH of the solution, which led to an immediate conversion without substantial conversion to Pu(IV). The aqueous Pu is stable as predominately Pu(V) for greater than one month from pH 3-7; however, at circumneutral pH, a sizable fraction of Pu was lost from solution by either precipitation or sorption to the vial walls. This method provides a fast means of preparing Pu(V) solutions for tracer concentration studies without numerous extraction or cleanup steps.

Analytical Chemistry (Washington, DC, United States) published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Synthetic Route of 4551-69-3.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Patel, Rashmi B. published the artcileSynthesis of Metal Catalysts from Industrial Waste Effluents and its Catalytic Application in Biginelli Reaction, Safety of 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, the publication is Current Organocatalysis (2016), 3(3), 270-276, database is CAplus.

Background: Industries are using various metals containing salts, for various purposes. However, some amount of metal salts is leached, which creates environmental pollution. Removal of these pollutants is essential. Various groups are working to remove them by different techniques, but here we have applied simple techniques to extract and then these materials are used as a catalyst for the synthesis of organic compounds Presently, as per our knowledge, this type of approach is adopted by us. Method: The ligand pyrazole-thiosemicarbazide was prepared by green chem. method, which was well characterized by various anal. techniques. This ligand is used for the extraction of various salts of metal from the effluent. The metal salts are converted into metal complexes. The metal complexes from the waste are used for the preparation of important biol. active derivatives Results: The ligand extracts the metals very fast. We have also studied the metal – ligand ratio and found that it is 1:1. These complexes are used as a catalyst for Biginalli reaction and in the presence of the catalysts the reaction is faster as compared to the absence of a catalyst. Conclusion: Based on a study we conclude that the ligand can work efficiently for the extraction of metal from the waste water. The formed complexes are the efficient catalysts for the preparation of dihydropyrimidines and its recycle and reuse.

Current Organocatalysis published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Safety of 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Kumari, N. published the artcileExtractant mediated nano-aggregate formation in Triton X-114 aided cloud formation: structural insights from TEM and SANS studies, Formula: C17H14N2O2, the publication is RSC Advances (2015), 5(116), 95613-95617, database is CAplus.

Nanoaggregate formation by self assembly was noticed during the cloud formation of Triton X-114 ((1,1,3,3-tetramethylbutyl)phenyl-polyethylene glycol) in the presence of dibenzoylmethane (DBM), thenoyltrifluoroacetone (HTTA) and 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and tri-Bu phosphate (TBP). Transmission Electron Microscopy (TEM) measurements showed that the nature of the extractant influences the clouding behavior of Triton X-114 and the formation of vesicles of different orientations. SANS studies suggested that the majority of Triton X 114 participated in the cloud formation process. Viscosity measurements at different temperatures were used to calculate the activation energy for viscous flow.

RSC Advances published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Formula: C17H14N2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Mir, J. M. published the artcileQuinoline and pyrazolone functionalized cis-dioxomolybdenum(VI) complexes: synthesis, hyphenated experimental-DFT studies and bactericidal implications, Quality Control of 4551-69-3, the publication is Journal of Coordination Chemistry (2018), 71(23), 3860-3873, database is CAplus.

Mixed-ligand complexes of dioxomolybdenum(VI) [MoO₂(L)(8-hq)(H₂O)], where 8-hq = 8-hydroxyquinoline and LH = 4-acylpyrazolones viz., 3-methyl-1-phenyl-4-propionyl-2-pyrazolin-5-one (pmphpH), 4-butyryl-3-methyl-1-phenyl-2-pyrazolin-5-one (bumphpH), 4-iso-butyryl-3-methyl-1-phenyl-2-pyrazolin-5-one (iso-bumphpH) or 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one (bmphpH) were synthesized by the reaction of [MoO₂(acac)₂] and the target ligands in EtOH medium. The complexes have been characterized by elemental analyses, decomposition temperature, molar conductance, magnetic susceptibility, thermogravimetric studies, FTIR, UV-visible, ¹H NMR, ¹³C NMR, and FAB mass spectral studies. The thermal decomposition processes of complex cis-[MoO₂(iso-bumphp)(8-hq)(H₂O)] is discussed with the evaluation of the order of reaction (n) and the activation energy (E_a) calculated from the thermogravimetric (TG) curve. Antibacterial study of one of the complexes at various dilutions also was carried in comparison with the ligands and metal precursor using ampicillin as a standard drug. Gaussian 09 software package was employed to carry out the theor. study using d. functional theory DFT/B3LYP level of theory under LANL2MB (for Mo)/6-311 + G (for nonmetallic elements) basis set for one of the complexes, cis-[MoO₂(bmphp)(8-hq)(H₂O)]. Based on exptl. and theor. data, suitable pseudo pentagonal bipyramidal structures are proposed for this class of metal complexes.

Journal of Coordination Chemistry published new progress about 4551-69-3. 4551-69-3 belongs to pyrazoles-derivatives, auxiliary class Benzenes, name is 4-Benzoyl-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one, and the molecular formula is C17H14N2O2, Quality Control of 4551-69-3.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics

Chen, Long-Wang published the artcileMetronidazole containing pyrazole derivatives potently inhibit tyrosyl-tRNA synthetase: design, synthesis, and biological evaluation, COA of Formula: C16H12N2O2, the publication is Chemical Biology & Drug Design (2016), 88(4), 592-598, database is CAplus and MEDLINE.

As an important enzyme in bacterial protein biosynthesis, tyrosyl-tRNA synthetase (TyrRS) has been an absorbing therapeutic target for exploring novel antibacterial agents. A series of metronidazole-based antibacterial agents has been synthesized and identified as TyrRS inhibitors with low cytotoxicity and significant antibacterial activity, especially against Gram-neg. organisms. Of the compounds obtained, I is the most potent agent which inhibited the growth of Pseudomonas aeruginosa ATCC 13525 (MIC = 0.98 μg/mL) and exhibited TryRS inhibitory activity (IC₅₀ = 0.92 μM). Docking simulation was performed to further understand its potency. Membrane-mediated apoptosis in P. aeruginosa was verified by flow cytometry.

Chemical Biology & Drug Design published new progress about 13599-22-9. 13599-22-9 belongs to pyrazoles-derivatives, auxiliary class Pyrazole,Carboxylic acid,Benzene, name is 1,5-Diphenyl-1H-pyrazole-3-carboxylic acid, and the molecular formula is C16H12N2O2, COA of Formula: C16H12N2O2.

Referemce:
https://en.wikipedia.org/wiki/Pyrazole,
Pyrazoles – an overview | ScienceDirect Topics