Day: April 19, 2022

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Organoruthenium (II) complexes featuring pyrazole-linked Schiff base ligands: Crystal structure, DNA/BSA interactions, cytotoxicity and molecular docking, the main research direction is ruthenium arene half sandwich pyrazole Schiff base complex preparation; DNA protein intercalation ruthenium arene pyrazole Schiff base complex; crystal structure ruthenium arene pyrazole Schiff base complex; mol structure ruthenium arene pyrazole Schiff base complex.Application of 3326-71-4.

Half-sandwiched ruthenium (II) arene complexes with piano stool-like geometry with the general formula [(p-cymene)RuClL1] and [(p-cymene)RuClL2] [where L1 = (Z)-N’-((1,3-diphenyl-1H-pyrazol-4-yl)methylene)furan-2-carbohydrazide and L2 = (Z)-N’-((1,3-diphenyl-1H-pyrazol-4-yl)methylene)thiophene-2-carbohydrazide] were synthesized and characterized. The single crystal X-ray data revealed that the complexes belong to the same crystal system (monoclinic) with octahedral geometry, where the ruthenium atom is surrounded by hydrazone ligand coordinated through ON atoms, one chloride labile co-ligand and the remaining three coordination sites covered by an electron cloud of p-cymene moiety. The interaction between the complexes and DNA/bovine serum albumin (BSA) was evaluated using absorption and emission titration methods showing intercalative modes of interaction. The DNA cleavage ability of the complexes was checked by agarose gel electrophoresis method exhibiting the destruction of DNA duplex arrangement. To understand the interaction between ruthenium complex and DNA/BSA mol., mol. docking studies were performed. In vitro cytotoxicity of the complexes was examined by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay on human lung cancer cell line, A549, and found that at lower IC50, cell growth inhibition has occurred. Similarly, the IC50 values of the complexes treated with cancerous cell lines have produced a significant amount of lactase dehydrogenase and nitrite content in the culture medium, which were evaluated as apoptosis-inducing factors, suggesting that the ruthenium (II) arene hydrazone complexes with pyrazole ligands have promising anticancer activities.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Furoic hydrazide( cas:3326-71-4 ) is researched.Name: 2-Furoic hydrazide.Peng, Hua-nan; Liu, Yi-qing; Huang, Jia-qi; Huang, Shou-Shun; Cai, Xin-ping; Xu, Shu-juan; Huang, Ai; Zeng, Qiang; Xu, Miao published the article 《A simple fluorescent probe for selective detection of Al3+ based on furan Schiff base and its crystal structure》 about this compound( cas:3326-71-4 ) in Journal of Molecular Structure. Keywords: aluminum furan Schiff base crystal structure fluorescent probe sensor. Let’s learn more about this compound (cas:3326-71-4).

A simple “”turn-on”” fluorescent probe L was synthesized by condensation of furan-2-carbohydrazide and 2-hydroxy-4-methoxybenzaldehyde, and its structure was confirmed by single crystal X-ray diffraction. The probe L exhibited excellent selectivity towards Al3+ over other coexistent metal ions with remarkable fluorescence enhancement, accompanied by color change from colorless to blue. Moreover, the probe L showed high sensitivity to Al3+ with low detection limit (3.10 x 10-8 M) in the pH range of 3.0-8.0. The possible sensing mechanisms of L toward Al3+ were determined by Job plots experiments, high resolution mass spectrometry (HRMS), 1H NMR spectra and the d. functional theory (DFT) calculations Addnl., the probe L was successfully applied for detection of Al3+ in water samples with satisfactory results.

Although many compounds look similar to this compound(3326-71-4)Name: 2-Furoic hydrazide, numerous studies have shown that this compound(SMILES:O=C(C1=CC=CO1)NN), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

SDS of cas: 3326-71-4. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Iodine-promoted one-pot synthesis of 1,3,4-oxadiazole scaffolds via sp3 C-H functionalization of azaarenes. Author is Mani, Geeta Sai; Donthiboina, Kavitha; Shankaraiah, Nagula; Kamal, Ahmed.

An efficient iodine-mediated one-pot synthetic protocol for the synthesis of 2,5-disubstituted 1,3,4-oxadiazoles scaffolds I [R = 2-furyl, Ph, 4-ClC6H4, etc.; R1 = 2-pyridyl, 2-quinolinyl, 7-Clquinolin-2-yl, etc.] was developed via sp3 C-H functionalization. This method involved oxidative amination with concomitant base-mediated cyclization of methylhetarenes and acylhydrazines by employing iodine and Cs2CO3. The key features of the present method included good functional group tolerance, a clean protocol, metal-free conditions and high yields, making this protocol an attractive strategy toward the synthesis of bioactive mols. and their key building blocks.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Synthetic Route of C5H6N2O2. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Green aqueous synthesis and antimicrobial evaluation of 3,5-disubstituted 1,2,4-triazoles. Author is Beyzaei, Hamid; Malekraisi, Farideh; Aryan, Reza; Ghasemi, Behzad.

An eco-friendly and simple procedure was proposed for the synthesis of 3,5-disubstituted 1,2,4-triazoles I [R = Ph, 4-pyridyl, 2-furyl, etc.] by optimized reaction of benzamidine hydrochloride and various aryl hydrazides. The products were generated in good to high yields in one step and sufficient purity after a simple workup. Inhibitory activity of all prepared derivatives was evaluated against 10 pathogenic bacterial strains including both Gram-pos. and Gram-neg., as well as 2 mold and 1 yeast strains. The prepared derivatives showed good antimicrobial activities and 1,2,4-triazoles containing 2-hydroxynaphthalen-3-yl and 5-chlorothiophen-2-yl substituents at position 3 showed the best antifungal and antibacterial properties, resp.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about A highly selective fluorescent sensor for Ca2+ and Sr2+ based on diarylethene with a furan-carbohydrazide unit, the main research direction is fluorescent sensor calcium strontium diarylethene furan carbohydrazide.Safety of 2-Furoic hydrazide.

A fluorescent sensor based on diarylethene (I) has been designed and synthesized. The sensor not only exhibited excellent photochromic properties, but also has distinguishing ability for Ca2+ and Sr2+ from other metal ions. Upon addition of Ca2+ and Sr2+, its emission intensity enhanced 27-fold and 24-fold resp., accompanied by the emission peak shifted from 439 nm to 484 nm for Ca2+, and to 479 nm for Sr2+. The 1:1 stoichiometry between the sensor and the two ions was confirmed by Job’s plot and HRMS. The LOD for Ca2+ and Sr2+ was determined to be 9.4 × 10-8 mol L-1 and 7.2 × 10-8 mol L-1, resp. Furthermore, the sensor was applied in the detection of Ca2+ and Sr2+ in practical samples successfully.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Methyl tetrahydrofuran-2-carboxylate(SMILESS: O=C(C1OCCC1)OC,cas:37443-42-8) is researched.Related Products of 415918-91-1. The article 《Chlorination of tetrahydrofuran-2-carboxylic acid esters》 in relation to this compound, is published in Khimiya Geterotsiklicheskikh Soedinenii. Let’s take a look at the latest research on this compound (cas:37443-42-8).

Photochem. chlorination of Me tetrahydro-2-furancarboxylate in CCl4 at -15 to -20° gave the chlorofurancarboxylate I and small amounts of the dihydrofuran II (8%) and Me 2-furancarboxylate (2%). Et tetrahydro-2-furancarboxylate was similarly chlorinated. The by-products were formed by dehydrochlorination of intermediate x-chlorination products.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ) is researched.Synthetic Route of C8H12O4.Chandramalar, A. V. M.; Lim, Y. Y.; Leong, Y. K. published the article 《The effects of cis-trans configuration of cyclohexane multi-carboxylic acids on colloidal forces in dispersions: steric, hydrophobic and bridging》 about this compound( cas:610-09-3 ) in Colloids and Surfaces, A: Physicochemical and Engineering Aspects. Keywords: configuration effect cyclohexanecarboxylic acid zirconia colloidal force; yield stress pH zirconia cyclohexanecarboxylic acid configuration effect. Let’s learn more about this compound (cas:610-09-3).

The effects of cis- and trans-1,2-, trans-1,4-cyclohexanedicarboxylic acid, 95% cis-1,3,5-cyclohexane tricarboxylic acid and cis-1,2,3,4,5,6-cyclohexanehexacarboxylic acid on the yield stress-pH behavior of concentrated ZrO2 dispersions are reported. Adsorbed cis-1,2,3,4,5,6-cyclohexanehexacarboxylic acid imparts predominantly steric interactions. It forms a steric barrier keeping the interacting particles apart. Adsorbed cis- and trans-1,2 increase the maximum yield stress and this was attributed to a hydrophobic force resulting from the part of the cyclohexane ring sticking out into the solution which is devoid of charged or hydrophilic group. Adsorbed trans-1,4 increases the maximum yield stress by ≥3-fold and its configuration favors strong bridging interaction with an adjacent particle. Predominantly, cis-1,3,5 also increases the maximum yield stress but only by 60% at the same additive concentration This was attributed to a smaller degree of bridging.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Formula: C5H6N2O2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Kinetic and mechanistic analysis of oxidation of 2-furoic hydrazide by hexachloroirradate(IV) in a wide pH range. Author is Yao, Haiping; Tian, Hongwu; Xu, Liyao; Xia, Yanqing; Zhou, Li; Liu, Chunli; Shi, Tiesheng.

Oxidation of 2-furoic hydrazide (FH) by hexachloroiridate(IV) ([IrCl6]2-) was studied kinetically in a wide pH range in aqueous solution of 1.0 M ionic strength. The oxidation reaction followed well-defined second-order kinetics: – d[IrCl62-]/dt = k'[FH]tot[IrCl62-], where [FH]tot denotes the total concentration of FH and k’ stands for the observed second-order rate constants The established k’-pH profile displays that k’ increases drastically with pH and a plateau region exists between pH 4 and 6. A stoichiometric ratio of Δ[FH]tot/Δ[IrCl62-] = 1/4 was revealed by spectrophotometric titrations 1H NMR spectroscopic studies indicated that FH was cleanly oxidized to 2-furoic acid. The kinetic data suggest a reaction mechanism in which all the three protolysis species of FH react with [IrCl6]2- in parallel, forming the rate-determining steps. Two stabilized hydrazyl radicals are generated in the rate-determining steps, in which a single electron is transferred to [IrCl6]2-. The two hydrazyl radicals react rapidly in consecutive steps requiring 3 mol of Ir(IV) to form 2-furoic acid as the final product. Rate constants of the rate-determining steps were deduced through a simulation of the rate expression to the k’-pH dependency data. Values of these rate constants demonstrate that the three protolysis species of FH have a huge reactivity span, changing by about 109 times toward reduction in [IrCl6]2- and that FH can be readily oxidized in neutral and basic media. Rapid scan spectra and the measured activation parameters suggest that an outer-sphere electron transfer is probably taking place in each of the rate-determining steps. This is the first kinetic study on the oxidation reactions of FH and provides concurrently the protolysis constants of FH (pKa1 = 3.04 ± 0.08 and pKa2 = 11.6 ± 0.1) at 25.0 °C and 1.0 M ionic strength.

Although many compounds look similar to this compound(3326-71-4)Formula: C5H6N2O2, numerous studies have shown that this compound(SMILES:O=C(C1=CC=CO1)NN), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

Safety of Methyl tetrahydrofuran-2-carboxylate. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: Methyl tetrahydrofuran-2-carboxylate, is researched, Molecular C6H10O3, CAS is 37443-42-8, about Synthesis of mono-acylation piperazine compounds.

1-(2-Furoyl)piperazine (90.6%) and 1-(terahydro-2-furoyl)piperazine were synthesized by the esterification of 2-furoic acid and 2-tetrahydrofuroic acid with methanol, and then amidation with piperazine, resp. The structures were characterized by 1H NMR and IR.

Although many compounds look similar to this compound(37443-42-8)Safety of Methyl tetrahydrofuran-2-carboxylate, numerous studies have shown that this compound(SMILES:O=C(C1OCCC1)OC), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: cis-Cyclohexane-1,2-dicarboxylic acid(SMILESS: O=C([C@H]1[C@@H](C(O)=O)CCCC1)O,cas:610-09-3) is researched.Category: pyridine-derivatives. The article 《Zinc(II) and cadmium(II) complexes with mixed 1,3-di(1H-imidazol-4-yl)benzene and cyclohexanedicarboxylate ligands: Synthesis, structure and property》 in relation to this compound, is published in Polyhedron. Let’s take a look at the latest research on this compound (cas:610-09-3).

Eight new coordination polymers Zn(L)(cis-1,2-CHDA)| (1), Zn(L)(trans-1,3-CHDA)|·2.5H2O (2), Zn(L)(cis-1,3-CHDA)|·H2O (3), Cd(L)(cis-1,2-CHDA)|·3H2O (4), Cd2(L)2(cis-1,2-CHDA)2|·3H2O (5), Cd(L)(cis-1,3-CHDA)|·H2O (6), Cd(L)(cis-1, 4-CHDA)|·5H2O (7) and Cd(L)(cis-1,4-CHDA)| (8) were synthesized by reactions of corresponding metal salt with 1,3-di(1H-imidazol-4-yl)benzene (L) and different carboxylic acids such as 1,2-cyclohexanedicarboxylic acid (1,2-H2CHDA), 1,3-cyclohexanedicarboxylic acid (1,3-H2CHDA) and 1,4-cyclohexanedicarboxylic acid (1,4-H2CHDA), resp. The results of crystal structure anal. revealed that 4, 7 and 8 are chains, 1, 3, 5 and 6 are (3)-connected 2D networks with Point (Schlaefli) symbol of (63), while 2 is a (3,3)-connected 2D network with Point (Schlaefli) symbol of (44,62). Thermal stability and photoluminescence of the complexes were investigated. Furthermore, DFT calculations were carried out on 2-5, and 7 and 8 to discuss the temperature dependent reaction of the complexes.

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Reference:
Benzisoxazole – Wikipedia,
Benzisoxazole – an overview | ScienceDirect Topics