Category: 3326-71-4

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 3326-71-4, is researched, SMILESS is O=C(C1=CC=CO1)NN, Molecular C5H6N2O2Journal, Article, Luminescence called A highly selective aggregation-induced emission fluorogen for sensitive detection of Al3+ in living cells, Author is Xie, Ya; Li, Xueming; Yan, Liqiang; Li, Jianping, the main research direction is A549 cell aggregation induced emission fluorogen aluminum; AIE; Al3+; Schiff’s base; coumarin; fluorescence probe.Reference of 2-Furoic hydrazide.

A Schiff’s base derivative was synthesized using a condensation reaction between 8-formyl-7-hydroxy-4-methylcoumarin and furan-2-carbohydrazide that produced marked aggregation-induced emission and had excellent ability to specifically recognize aluminum ions (Al3+). This compound displayed faint fluorescence in the benign solvent DMF, and exhibited obvious green fluorescence following addition of specific amounts of water. Moreover, it exhibited strong blue fluorescence after combination with Al3+ even in the presence of other interfering ions. These exptl. results demonstrated that this derivative could be used as a fluorescence probe for Al3+. The advantages, including significant fluorescence change, high selectivity and sensitivity, and fast response, meant that this probe could be used both to detect Al3+ in water samples and for fluorescence imaging in living cells.

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

Name: 2-Furoic hydrazide. 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 Synthesis of acylhydrazone based fluorescent probe for Al (III) and its property. Author is Long, Zhao-xian; Jiang, Guang-qi.

An acylhydrazone based fluorescent probe was synthesized by two-step reaction with tetrakis(bromomethyl) benzene and 2,4-dihyoxybenzaldehyde as raw materials. The compound showed excellent selectivity for Al3+ in the V(DMSO):V (H2O) = 19:1 solution, showing remarkable fluorescence enhancement effects towards Al3+ at the emission wavelength of 446 nm. The stoichiometry of 1:2 of the Al (III) complexes was determined by Job’s plots, 1HNMR titration experiments and LC-MS anal. The spectroscopic titration indicated that the detection limits of the probe for Al3+ were 1.16 × 10-7 mol/L and the complexing constant of the probe to Al3+ was 2.28 × 10-3 L/mol. Furthermore, the probe can be used for the determination of Al3+ in the river water and tap water samples.

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

Recommanded Product: 2-Furoic hydrazide. 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 Synthesis, crystal structures, and characterization of three zinc complexs with different acylhydrazone-type schiff base ligands. Author is Xie, Qing-fan; Chen, Yan-min.

Three zinc complexes, namely [Zn(Lss)(phen)(DMF)] (1), {[Zn (HLdis)]2·2CH3OH}n (2) and [Zn(Baf)2]·CH3OH (3), formed from different acylhydrazone-type Schiff base ligands were synthesized by using different methods, and the compounds were characterized by IR, UV-Vis spectra and TGA. The X-ray diffraction analyses revealed that 1 and 3 crystallized in the triclinic space group P1̅ while 2 in monoclinic system space group P21/n. In 1 and 3, coordination number of the Zn (II) was six, and the centric atom located in a distorted octahedron geometry, while in 2 Zn (II) was five-coordination in a distorted square-pyramidal geometry. The precursor of 3 was pyrazoline derivative with the formula C15H14N2O3 (Pzl) crystallizing in monoclinic system space group P21/c. Due to the coordination of Zn (II) causing the intramol. rearrangement of Pzl, the ring open product HBaf in the form of an acylhydrazone structure coordinated with Zn (II) to form complex 3.

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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 Modification of Monocarboxylic Acid Hydrazides with Tropylium Salts, published in 2019-12-31, which mentions a compound: 3326-71-4, Name is 2-Furoic hydrazide, Molecular C5H6N2O2, Recommanded Product: 3326-71-4.

Nicotinic, isonicotinic, and furan-2-carboxylic acid hydrazides reacted with 2 equiv of tropylium perchlorate or tetrafluoroborate to give the corresponding N’N’-di(cyclohepta-2,4,6-trein-1-yl) derivatives as a result of electrophilic substitution of both hydrogen atoms in the primary amino group. The reaction of furan-2-carbohydrazide with an equimolar amount of tropylium salt gave N’-(cyclohepta-2,4,6-trien-1-yl)furan-2-carbohydrazide.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 3326-71-4, is researched, SMILESS is O=C(C1=CC=CO1)NN, Molecular C5H6N2O2Journal, Chemistry of Heterocyclic Compounds (New York, NY, United States) called The synthesis of 3-(het)aryl-6,7-dihydro-5H-[1,2,4]-triazolo[3,4-a][2]benzazepines, Author is Glushkov, Vladimir A.; Babentsev, Dmitry N.; Dmitriev, Maksim V.; Stepanova, Kseniya A.; Kharintseva, Anastasiya Yu.; Simakhina, Anastasiya E., the main research direction is aryldihydrotriazolobenzazepine preparation; benzazepine hydrazide cyclization.Safety of 2-Furoic hydrazide.

4-Aryl-2-methylbutan-2-ols with methoxy or methylenedioxy substituents participate in the Graf-Ritter reaction with Me thiocyanate in the presence of an acid (H2SO4, MeSO3H) forming 1-methylsulfanyl-2-benzazepines in low yields (11-35%), which underwent cyclization with benzhydrazide or hetarenecarboxylic acid hydrazides upon reflux in o-dichlorobenzene into the corresponding 3-phenyl- and 3-hetaryl-6,7-dihydro-5H-1,2,4-triazolo[3,4-a][2]benzazepines I (R1 = R2 = OMe, R1+R2 = OCH2O; R3 = H, OMe; R4 = Ph, 2-furyl, 2-thienyl, 4-pyridyl) (45-74% yields).

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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: 2-Furoic hydrazide(SMILESS: O=C(C1=CC=CO1)NN,cas:3326-71-4) is researched.COA of Formula: C6H13NO. The article 《Facile synthesis of 1,3,4-oxadiazoles via iodine promoted oxidative annulation of methyl-azaheteroarenes and hydrazides》 in relation to this compound, is published in Tetrahedron. Let’s take a look at the latest research on this compound (cas:3326-71-4).

An oxidative sp3 C-H bond of methyl-azaheteroarenes protocol RCH3 (R = quinolin-2-yl, benzo[f]quinolin-3-yl, pyridin-2-yl, etc.) was reported for the synthesis of 1,3,4-oxadiazoles I (R1 = 2H-1,3-benzodioxol-5-yl, furan-2-yl, prop-1-en-2-yl, etc.) via [4+1] annulation with hydrazides R1C(O)NHNH2. This protocol enables 1,3,4-oxadiazole and quinoline linked diheterocycles I via selective oxidation of sp3 C-H bond of methyl-azaheteroarenes in the presence of I2-DMSO. The reaction has a broad substrate scope and good functional group tolerance for methyl-azaheteroarenes and hydrazides.

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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 Synthesis, characterization, and nonlinear optical properties of some new series of S-(5-aryl-1,3,4-oxadiazol-2-yl)-2-chloroethanethioate derivatives, published in 2019, which mentions a compound: 3326-71-4, Name is 2-Furoic hydrazide, Molecular C5H6N2O2, Electric Literature of C5H6N2O2.

In the present investigation, some novel S-(5-aryl-1,3,4-oxadiazol-2-yl)-2-chloroethanethioate I [Ar = Ph, 2-ClC6H4, 2-furanyl, 2-O2NC6H4, 3-O2NC6H4] derivatives were synthesized and their impact on optical properties was studied. The nonlinear refractive indexes of compounds I were also measured in dichloromethane via Z-scan method using a continuous wave diode-pumped laser at 532 nm wavelength. The nonlinear refractive coefficient of compounds I was obtained from 1011 m2/W order. Regarding the appropriate nonlinearity of these compounds, they could be considered good candidates for biooptical and photonic applications. All the synthesized compounds I were also evaluated for their antibacterial and antifungal activities. The bioactive assay showed that the synthetic compounds displayed variable inhibition zones against tested bacterium Escherichia coli and fungus Aspergillus fumigatus in comparison to enrofloxacin and amphotericin as reference drugs, which are normally used for treating such infections. Synthesized compounds were characterized by elemental anal. and various spectroscopic methods including FTIR, 1H NMR, 13C NMR and UV-Vis techniques.

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

Gamov, G. A.; Khodov, I. A.; Belov, K. V.; Zavalishin, M. N.; Kiselev, A. N.; Usacheva, T. R.; Sharnin, V. A. published the article 《Spatial structure, thermodynamics and kinetics of formation of hydrazones derived from pyridoxal 5′-phosphate and 2-furoic, thiophene-2-carboxylic hydrazides in solution》. Keywords: pyridoxal phosphate hydrazone conformer hydrolysis kinetics overhauser effect.They researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Application of 3326-71-4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:3326-71-4) here.

The spatial structure of pyridoxal 5′-phosphate hydrazones of 2-furoic hydrazide; thiophene-2-carboxylic hydrazide in aqueous solution was studied by means of quantum chem. calculations and NOE experiment The hydrazones could exist as a mixture of different conformers; however, the specific ones could be suggested from exptl. and calculated data. The stability constants of hydrazones at pH of 1.9; 6.6; 7.0; 7.4 were determined using UV-Vis spectroscopy. Rate constants of the hydrazone formation and hydrolysis reaction within the range of 6.6-7.4 pH were obtained. Isothermal calorimetric titration was performed in order to determine the change in the free Gibbs energy, enthalpy and entropy of hydrazones formation at pH of 6.6. Hydrazones were synthesized and characterized by means of 1H, 13C, 31P NMR, IR, UV-Vis, fluorescent, MS-spectroscopy as well as DSC and elemental anal.

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

Reference of 2-Furoic hydrazide. 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 Lemon Juice as a Biocatalyst Under Ultrasound Irradiation: Synthesis and Pharmacological Evaluation of 2-amino-1,3,4-thiadiazoles. Author is Prasad, Malavattu G.; Lakshmi, Chapala V.; Katari, Naresh K.; Pal, Manojit.

An ultrasound-assisted method facilitated by lemon juice has been developed to synthesize 2-amino-1,3,4-thiadiazole derivatives I (Ar = Ph, 2-methoxy-5-nitrophenyl, pyridin-3-yl, etc.) that could act as potential anticancer agents. Accordingly, a convenient method has been developed for the rapid synthesis of this class of compounds I under a mild and non-hazardous reaction condition in good yields. The methodol. involved the reaction of various acid hydrazides ArC(O)NHNH2 with TMSNCS in the presence of lemon juice in PEG-400 at room temperature (25-30°C) under ultrasound irradiation These compounds I were assessed for their cytotoxic properties against two different metastatic breast cancer cell lines e.g., MDAMB-231 and MCF-7 and subsequently against SIRT1. The 2-amino 1,3,4-thiadiazole derivatives I (Ar = 4-methoxyphenyl, 3-methoxyphenyl, 2,3-dimethoxyphenyl, 2-methoxy-5-nitrophenyl) showed promising growth inhibition of MDAMB- 231 and MCF-7 cell lines and SIRT1 inhibition in vitro. Indeed, I (Ar = 3-methoxyphenyl) was found to be a potent inhibitor of SIRT1.

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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 Naphthalimide-based probe for the detection of hypochlorite in a near-perfect aqueous solution.Reference of 2-Furoic hydrazide.

A novel fluorescent turn-off sensor JM for hypochlorite was synthesized. JM showed a remarkable selectivity for ClO- over diverse competitive analytes, including reactive oxygen species (ROS), via deprotonation reaction. Detection limit for ClO- turned out to be 0.60μM. Sensor JM successfully determined ClO- in natural water samples with satisfactory recovery. The sensing mechanism of JM to hypochlorite was demonstrated by fluorescent and UV-visible spectroscopy, ESI-mass, NMR titration and TD-DFT calculations

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