Tag: M.W:100-200

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.Yadav, Neetu; Kumar, Raj; Singh, Ashok Kumar; Mohiyuddin, Shanid; Gopinath, P. researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Electric Literature of C5H6N2O2.They published the article 《Systematic approach of chromone skeleton for detecting Mg2+, ion: Applications for sustainable cytotoxicity and cell imaging possibilities》 about this compound( cas:3326-71-4 ) in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy. Keywords: chromone skeleton fluorophore magnesium fluorescence imaging; Biocompatible; Chromone based ligands; Cytotoxicity; HeLa cancer cells. We’ll tell you more about this compound (cas:3326-71-4).

The systematic studies of chromone appended novel chemosensors, favored to Mg2+ ion detection, these were analyzed and characterized by different spectroscopic techniques such as NMR, mass spectroscopy, FTIR and optical techniques. The binding demeanor of the ligands was executed with the library of metal ions and shown the good coordination with Mg2+ ion to the ligand′s cavity. Both ligands demonstrated good binding behavior with Mg2+ ion. The ligands represented 1: 1 stoichiometry with Mg2+ ions through Job′s plot. The low limit of detection of Mg2+ ion was determined as 2.56 × 10-6 and 1.28 × 10-6 for La and Lb, resp. No interference was occurred in Inference study by foreign metal ions that supported the specific detection of Mg2+ ion among the other metal ions. Further, the cytotoxicity assay test of these chromone appended ligands revealed that both ligands and their resp. compound with Mg2+ ion shown negligible toxicity with HeLa cancer cell line. Further, due to the fluorescence properties of the ligands, with or without Mg2+ ion was successfully tested in bioimaging experiment of HeLa cancer cell lines and found that ligands with Mg2+ ions represented good imaging with HeLa cancer cell.

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

Synthetic Route of C8H12O4. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Reductive metabolism and its role in the disposition of the hydroxamic angiotensin-converting enzyme inhibitor idrapril calcium in rat. Author is Lippi, A.; Criscuoli, M.; Canali, S.; Subissi, A..

The metabolism of 14C-idrapril calcium, the prototype of a new class of angiotensin-converting enzyme inhibitors, was studied in rat after a single i.v. administration. Plasma, urine, feces, and bile were assayed for total and HPLC-fractionated radioactivity. Only one major metabolite (M1, 2-sarcosinamide-cis-1,2-cyclohexanedicarboxylamide) was observed, along with idrapril, in plasma. Three metabolites (M1, M2, cis-1,2-cyclohexanedicarboxylic acid, and M3, and glucuronate derivative of M1) were present in 0-8-h urine, unchanged idrapril being the most abundant product. In bile, two metabolites (M1, M3), but not the parent compound, were found. In conclusion i.v. idrapril undergoes hepatic reduction to M1 and hydrolysis to M2. M1 can be glucuronated to M3 and both are partially excreted in the bile and further processed in the gut to reabsorbable radioactive species.

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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 Kinetic and mechanistic analysis of oxidation of 2-furoic hydrazide by hexachloroirradate(IV) in a wide pH range, the main research direction is furoic hydrazide hexachloroiridate catalyst oxidation mechanism kinetics.SDS of cas: 3326-71-4.

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.

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

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Ultrasonic Cavitation Facilitates Rapid Synthesis of Trisubstituted Pyrazole Scaffolds through Michael Addition/Domino Cyclization, published in 2019, which mentions a compound: 3326-71-4, Name is 2-Furoic hydrazide, Molecular C5H6N2O2, Product Details of 3326-71-4.

A series of aryl/indolyl substituted 4, 5-dihydro-1H-pyrazole derivatives I [R = 2-benzyloxybenzene, 4-MeSC6H4, 4-ClC6H4, 1-methyl-indolyl; R1 = Ph, 4-MeOC6H4, 4-FC6H4, etc.; Ar = 2-furyl, 4-pyridyl, 4-ClC6H4, etc.] was synthesized via a domino method based on Michael addition mediated cyclization of chalcones and aryl hydrazines. The chalcones were prepared by Wittig reaction in which substituted aromatic aldehydes were treated with stable ylides under eco-friendly ultrasonic cavitation.

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

Application of 610-09-3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Reduction mechanism of cyclohexene-1,2-dicarboxylic acid. Author is Fujita, Reiko; Sekine, Taro.

Reduction mechanism of cyclohexene-1,2-dicarboxylic acid (I) was polarog. examined at pH 0-6. The first of the 3 waves that appeared was due to the adsorption of the product in strongly acid media. The 2nd wave was interpreted as due to a CEC (chem.-electrode-chem.) process involving preprotonation of the acid. The 3rd wave that appeared only in weakly acid media involved a CEC mechanism by which the free acid was reduced. The rate constant of the protonation of the monoanion from I was calculated Controlled-potential electrolysis produced a mixture of trans- and cis-cyclohexanedicarboxylic acid in high yield at pH 0-6. The stereoisomeric ratio of the products was influenced by pH; this was due to the difference of the stability of the reaction intermediates.

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

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Synthesis called Photoinduced direct cyanation of C(sp3)-H bonds, Author is Hoshikawa, Tamaki; Yoshioka, Shun; Kamijo, Shin; Inoue, Masayuki, which mentions a compound: 37443-42-8, SMILESS is O=C(C1OCCC1)OC, Molecular C6H10O3, Computed Properties of C6H10O3.

A general and practical synthetic protocol for the direct transformation of unreactive C(sp3)-H bonds to C(sp3)-CN bonds has been developed. The homolytic cleavage of the C-H bond is initiated by photo-excited benzophenone, and the resulting carbon radical subsequently reacts with tosyl cyanide to afford the corresponding nitrile in a highly efficient manner. The present methodol. is widely applicable to various starting materials including ethers, alcs., amine derivatives, alkanes, and alkylbenzenes. This newly developed C-H cyanation protocol provides a powerful tool for selective one-carbon elongation for the construction of architecturally complex mols.

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

COA of Formula: C5H6N2O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about A simple and sensitive fluorescent sensor platform for Al3+ sensing in aqueous media and monitoring through combined PET and ESIPT mechanisms: practical applications in drinking water and bio-imaging. Author is Aydin, Duygu; Gunay, Ibrahim Berk; Karuk Elmas, Sukriye Nihan; Savran, Tahir; Arslan, Fatma Nur; Sadi, Gokhan; Yilmaz, Ibrahim.

In this study, a novel hydrazide-based compound, (E)-N′-(5-(benzo[d]thiazol-2-yl)-2-hydroxybenzylidene)furan-2-carbohydrazide (probe BOTH, I) was designed, characterized and prepared as a fluorogenic “”turn-on”” sensor for monitoring Al3+ in near-perfect aqueous media. All emission and absorbance spectral studies were performed in HEPES/DMSO (volume/volume, 99.95/0.05, pH = 7.0) media at 25 °C. The quantum yield of probe BOTH increases considerably in the presence of Al3+. Probe BOTH could sense Al3+ at a concentration as low as 6.47 nM. Probe BOTH could sense Al3+ with high sensitivity and selectivity, and a quant. correlation of R2 = 0.9887 in the Al3+ concentration range of 0.0-20.0 equivalent To evaluate the method parameters, a validation study was performed based on different anal. parameters. The formation of complex BOTH-Al3+ (2 : 1 stoichiometry) was confirmed by 1H-NMR titration and MALDI-TOF MS, as well as Job′s methods. pH-Dependent and Benesi-Hildebrand plot studies also supported this proposed sensing mechanism. Besides, the binding mechanism of Al3+ with probe BOTH was further verified by theor. studies. Moreover, probe BOTH could be used for monitoring Al3+ in living-cells and water samples.

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

SDS of cas: 610-09-3. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Crown Ethers and Their Alkali Metal Ion Complexes as Assembler Groups in Uranyl-Organic Coordination Polymers with cis-1,3-, cis-1,2-, and trans-1,2-Cyclohexanedicarboxylates. Author is Thuery, Pierre; Atoini, Youssef; Harrowfield, Jack.

Alkali metal cations (Na+, K+) and crown ether mols. (12C4, 15C5, 18C6) were used as addnl. reactants during the hydrothermal synthesis of uranyl ion complexes with cis/trans-1,3-, cis-1,2- and trans-1,2-cyclohexanedicarboxylic acids (c/t-1,3-chdcH2, c-1,2-chdcH2, and t-1,2-chdcH2, resp., the latter as racemic or pure (1R,2R) enantiomer). Oxalate anions generated in situ are present in all the six complexes isolated and crystallog. characterized, [(UO2)2(c-1,3-chdc)2(C2O4)][UO2(H2O)5]·(12C4)·2H2O (1), [(UO2)4Na2(c-1,2-chdc)2(C2O4)3(15C5)2] (2), [(UO2)4K2(c-1,2-chdc)2(C2O4)3(18C6)1.5(H2O)1.5] (3), [(UO2)12K5(R-t-1,2-chdc)4(C2O4)10(18C6)5(OH)(H2O)3]·4H2O (4), [(UO2)12K5(rac-t-1,2-chdc)4(C2O4)10(18C6)5(OH)(H2O)3]·4H2O (5), and [(UO2)8K4(rac-t-1,2-chdc)4(C2O4)6(18C6)3(H2O)2] (6). In complex 1, the [UO2(H2O)5]2+ counterions link the ladderlike uranyl-containing one-dimensional polymers and the uncomplexed crown ether mols. through hydrogen bonds. In all the other complexes, two-dimensional uranyl/chdc/oxalate subunits are formed, with topologies depending on the stoichiometry, in which the 1,2-chdc2- ligands are bound to three uranium atoms, one of them chelated by the two carboxylate groups, and the oxalate ligands are bis-chelating. In complex 2, the Na(15C5)+ cations are bound to one layer through double Na-carboxylate or Na-oxo cis-bonding and they are thus mere decorating groups. In contrast, the quasi-planar K(18C6)+ groups in 3-6, partially affected by disorder, are generally trans-coordinated to two uranyl oxo groups pertaining to different layers, thus uniting the latter into a three-dimensional framework.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about Novel 1,3,4-Oxadiazole-2-carbohydrazides as Prospective Agricultural Antifungal Agents Potentially Targeting Succinate Dehydrogenase.Product Details of 3326-71-4.

A novel simple 1,3,4-oxadiazole-2-carbohydrazides was reported to discover low-cost and versatile antifungal agents. Bioassay results suggested that a majority of the designed compounds were extremely bioactive against four types of fungi and two kinds of oomycetes. This extreme bioactivity was highlighted by the applausive inhibitory effects of compounds 4b, 4h, 5c, 5g, 5h, 5i, 5m, 5p, 5t, and 5v against Gibberella zeae, affording EC50 values ranging from 0.486μg/mL to 0.799μg/mL, which were superior to that of fluopyram (2.96μg/mL) and comparable to those of carbendazim (0.947μg/mL) and prochloraz (0.570μg/mL). Meanwhile, compounds 4g, 5f, 5i, and 5t showed significant actions against Fusarium oxysporum with EC50 values of 0.652, 0.706, 0.813, and 0.925μg/mL, resp. Pharmacophore exploration suggested that the N’-phenyl-1,3,4-oxadiazole-2-carbohydrazide pattern is necessary for the bioactivity. Mol. docking of 5h with succinate dehydrogenase (SDH) indicated that it can completely locate the inside of the binding pocket via hydrogen-bonding and hydrophobic interactions, revealing that this novel framework might target SDH. This result was further verified by the significant inhibitory effect on SDH activity. In addition, SEM patterns were performed to elucidate the anti-G. zeae mechanism. Given these features, this type of frameworks is a suitable template for future exploration of alternative SDH inhibitors against plant microbial infections.

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

Qian, Peng; Zhou, Zhenghong; Wang, Li; Wang, Zhicheng; Wang, Zhongwei; Zhang, Zhenlei; Sheng, Liangquan published an article about the compound: 2-Furoic hydrazide( cas:3326-71-4,SMILESS:O=C(C1=CC=CO1)NN ).Application of 3326-71-4. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:3326-71-4) through the article.

An intramol. decarboxylative coupling reaction for the construction of 2-(1,3,4-oxadiazol-2-yl)aniline derivatives was developed from readily available isatins and hydrazides by virtue of electrochem. In this reaction, isatins were employed as amino-attached C1 sources, providing a variety of 2-(1,3,4-oxadiazol-2-yl)aniline derivatives with moderate to good yields.

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