Tag: M.W:100-200

HPLC of Formula: 3326-71-4. 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: 2-Furoic hydrazide, is researched, Molecular C5H6N2O2, CAS is 3326-71-4, about DMF as Methine Source: Copper-Catalyzed Direct Annulation of Hydrazides to 1,3,4-Oxadiazoles. Author is Wang, Shoucai; Wang, Kai; Kong, Xiangfei; Zhang, Shuhua; Jiang, Guangbin; Ji, Fanghua.

An unprecedented Cu-catalyzed direct annulation of hydrazides with N,N-dimethylformamide (DMF) was developed, providing an efficient synthesis of valuable 1,3,4-oxadiazoles. This process featured short reaction time and safely conducted on gram scale. The reaction also facilitated the convenient synthesis of 1,3,4-oxadiazole-2(3H)-ones. Moreover, the mechanistic studies suggested that the source of CH was from the N-Me group of DMF.

From this literature《DMF as Methine Source: Copper-Catalyzed Direct Annulation of Hydrazides to 1,3,4-Oxadiazoles》,we know some information about this compound(3326-71-4)HPLC of Formula: 3326-71-4, but this is not all information, there are many literatures related to this compound(3326-71-4).

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

Hijji, Yousef; Benjamin, Ellis; Jasinski, Jerry P.; Butcher, Ray J. published the article 《Crystal structure of the thalidomide analog (3aR*,7aS*)-2-(2,6-dioxopiperidin-3-yl)hexahydro-1H-isoindole-1,3(2H)-dione》. Keywords: isoindole thalidomide analog crystal structure; crystal structure; pseudomerohedral twinning; thalidomide analogs.They researched the compound: cis-Cyclohexane-1,2-dicarboxylic acid( cas:610-09-3 ).Safety of cis-Cyclohexane-1,2-dicarboxylic acid. 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:610-09-3) here.

The title compound, C13H16N2O4, crystallizes in the monoclinic centrosym. space group, P21/c, with four mols. in the asym. unit, thus there is no crystallog. imposed symmetry and it is a racemic mixture The structure consists of a six-membered unsaturated ring bound to a five-membered pyrrolidine-2,5-dione ring N-bound to a six-membered piperidine-2,6-dione ring and thus has the same basic skeleton as thalidomide, except for the six-membered unsaturated ring substituted for the aromatic ring. In the crystal, the mols. are linked into inversion dimers by R22(8) hydrogen bonding involving the N-H group. In addition, there are bifurcated C-H···O interactions involving one of the O atoms on the pyrrolidine-2,5-dione with graph-set notation R12(5). These interactions along with C-H···O interactions involving one of the O atoms on the piperidine-2,6-dione ring link the mols. into a complex three-dimensional array. There is pseudomerohedral twinning present which results from a 180° rotation about the [100] reciprocal lattice direction and with a twin law of 1 0 0 0 [inline formula omitted] 0 0 0 [inline formula omitted] [BASF 0.044 (1)].

From this literature《Crystal structure of the thalidomide analog (3aR*,7aS*)-2-(2,6-dioxopiperidin-3-yl)hexahydro-1H-isoindole-1,3(2H)-dione》,we know some information about this compound(610-09-3)Safety of cis-Cyclohexane-1,2-dicarboxylic acid, but this is not all information, there are many literatures related to this compound(610-09-3).

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

Related Products of 3326-71-4. 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 A 2-Hydroxy-1-naphthaldehyde Schiff Base for Turn-on Fluorescence Detection of Zn2+ Based on PET Mechanism. Author is Mu, Xinyue; Shi, Liping; Yan, Liqiang; Tang, Ningli.

Zinc ion is closely related to human health. Its content in human body is small, while the effect is large. However, it is not the more the better, must be in a scientific balance. Therefore, it is significant to the rapid detection of Zn2+ in the environment and organism. Herein, a fluorescent probe based on 2-hydroxy-1-naphthalene formaldehyde and furan-2-carbohydrazide was conveniently synthesized via Schiff base reaction. And this probe has been successfully applied to the accurate and quant. detection of Zn2+ in real samples, showing turn on fluorescence, good selectivity, very low detection limit, real time response and reusability. In addition, this probe has the potential application to trace Zn2+ in living cells with low cytotoxicity.

From this literature《A 2-Hydroxy-1-naphthaldehyde Schiff Base for Turn-on Fluorescence Detection of Zn2+ Based on PET Mechanism》,we know some information about this compound(3326-71-4)Related Products of 3326-71-4, but this is not all information, there are many literatures related to this compound(3326-71-4).

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

Category: benzisoxazole. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about Mass spectra of carboxylic acids. IV. Carboxyl-carboxyl interaction in some cycloalkane-1,2-dicarboxylic acids and its relation with molecular geometry. Author is Benoit, F.; Holmes, J. L..

The interaction of the (arboxyl groups in the fragmentation of the mol. ions of trans-cyclohexane-1,2-dicarboxylic acid and cis-cyclobutane-1,2-dicarboxylic acid distinguishes these acids from their cis and trans isomers, resp. This ortho effect is related to the geometrical arrangement of the carboxyl groups in the ground-state mols.

From this literature《Mass spectra of carboxylic acids. IV. Carboxyl-carboxyl interaction in some cycloalkane-1,2-dicarboxylic acids and its relation with molecular geometry》,we know some information about this compound(610-09-3)Category: benzisoxazole, but this is not all information, there are many literatures related to this compound(610-09-3).

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.Formula: C5H7BrO3. The article 《Generic Ion Chromatography-Conductivity Detection Method for Analysis of Palladium Scavengers in New Drug Substances》 in relation to this compound, is published in Organic Process Research & Development. Let’s take a look at the latest research on this compound (cas:610-09-3).

The revolution of palladium-catalyzed reactions in the synthesis of new mols. has created an unprecedented need for highly efficient palladium (Pd) removal processes. Metal scavengers with very selective and efficient removal properties are being extensively applied across process research and development (PR&D) to meet very tight specifications for residual Pd levels. Anal. procedures for the determination of residual Pd are well-established; however, developing methodologies to detect a variety of Pd scavengers in multicomponent reaction mixtures is currently considered an emerging challenge in pharmaceutical anal. Herein a simple and efficient generic ion chromatog.-conductivity detection (IC-CD) method on a Dionex IonPac AS19 column in conjunction with a fully aqueous eluent profile (potassium-hydroxide-based) capable of chromatog. resolving over 10 Pd scavenger species commonly used in PR&D workflows is described. Computer-assisted separation modeling using an ACD Labs/LC simulator served to generate 3D resolution maps with excellent separation conditions that matched the outcome of subsequent exptl. data. Method validation experiments showed excellent anal. performance in linearity, recovery, repeatability, and LOQ/LOD. In addition, these same chromatog. conditions can sep. multiple anionic species and active pharmaceutical (API) counterions along with Pd scavengers in the same exptl. run. We also provide strategic examples where API counterion interferences (e.g., sulfate) can be minimized by treating the API sulfate form with barium acetate to enhance the recovery of the Pd scavenger analyte.

If you want to learn more about this compound(cis-Cyclohexane-1,2-dicarboxylic acid)Category: benzisoxazole, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(610-09-3).

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.Recommanded Product: 3326-71-4.Ferreira, Ricardo J.; Gajdacs, Mario; Kincses, Annamaria; Spengler, Gabriella; dos Santos, Daniel J. V. A.; Ferreira, Maria-Jose U. published the article 《Nitrogen-containing naringenin derivatives for reversing multidrug resistance in cancer》 about this compound( cas:3326-71-4 ) in Bioorganic & Medicinal Chemistry. Keywords: preparation nitrogen containing naringenin derivative reversing multidrug resistance cancer; Docking; Efflux modulators; Flavonoids; Molecular dynamics; Multidrug resistance; P-glycoprotein. Let’s learn more about this compound (cas:3326-71-4).

Naringenin (1), isolated from Euphorbia pedroi, was previously derivatized yielding compounds 2-13. In this study, aiming at expanding the pool of analogs of the flavanone core towards better multidrug resistance (MDR) reversal agents, alkylation reactions and chem. modification of the carbonyl moiety was performed (15-39). Compounds structures were assigned mainly by 1D and 2D NMR experiments Compounds 1-39 were assessed as MDR reversers, in human ABCB1-transfected mouse T-lymphoma cells, overexpressing P-glycoprotein (P-gp). The results revealed that O-methylation at C-7, together with the introduction of nitrogen atoms and aromatic moieties at C-4 or C-4′, significantly improved the activity, being compounds 27 and 37 the strongest P-gp modulators and much more active than verapamil. In combination assays, synergistic interactions of selected compounds with doxorubicin substantiated the results. While mol. docking suggested that flavanone derivatives act as competitive modulators, mol. dynamics showed that dimethylation promotes binding to a modulator-binding site. Moreover, flavanones may also interact with a vicinal ATP-binding site in both nucleotide-binding domains, hypothesizing an allosteric mode of action.

If you want to learn more about this compound(2-Furoic hydrazide)Recommanded Product: 3326-71-4, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3326-71-4).

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

Tanczos, I.; Schoeflinger, M.; Schmidt, H.; Balla, J. published an article about the compound: Methyl tetrahydrofuran-2-carboxylate( cas:37443-42-8,SMILESS:O=C(C1OCCC1)OC ).Product Details of 37443-42-8. 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:37443-42-8) through the article.

Recently, tetramethylammonium hydroxide (TMAH) was advantageously used in the anal. pyrolysis of polymers, but yielded a great amount of carboxylic acid Me esters which were absent in conventional pyrolysis. The experiments with model compounds such as furaldehyde, benzaldehyde, hydroxy-, methoxy-, dimethoxybenzaldehyde and vanillin show that TMAH can react not only as a methylating and/or hydrolyzing agent but also with aldehydes according to a Cannizzaro reaction and the reaction products can be in-situ methylated to the corresponding esters and ethers.

If you want to learn more about this compound(Methyl tetrahydrofuran-2-carboxylate)Product Details of 37443-42-8, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(37443-42-8).

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

Formula: C8H12O4. 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: cis-Cyclohexane-1,2-dicarboxylic acid, is researched, Molecular C8H12O4, CAS is 610-09-3, about catena-Poly[[dimethyltin(IV)]-μ-cis-cyclohexane-1,2-dicarboxylato]. Author is Wang, Yuerong; Zhang, Rufen; Li, Yongxin.

The title complex, [Sn(CH3)2(C8H10O4)]n, was synthesized from cis-cyclohexane-1,2-dicarboxylic acid and dimethyltin dichloride. The complex has a bridging bis-bidentate carboxylate group resulting in a zig-zag chain structure parallel to [001]. The Sn atom is six-coordinated and displays a distorted octahedral geometry. Crystallog. data are given.

If you want to learn more about this compound(cis-Cyclohexane-1,2-dicarboxylic acid)Formula: C8H12O4, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(610-09-3).

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 Iodine-promoted one-pot synthesis of 1,3,4-oxadiazole scaffolds via sp3 C-H functionalization of azaarenes, the main research direction is diaryl oxadiazole preparation; acylhydrazine methyl azaarene iodine base mediated oxidative amination cyclization.Application In Synthesis of 2-Furoic hydrazide.

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.

If you want to learn more about this compound(2-Furoic hydrazide)Application In Synthesis of 2-Furoic hydrazide, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3326-71-4).

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

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.Canal-Martin, Andrea; Navo, Claudio D.; Saez, Elena; Molero, Dolores; Jimenez-Oses, Gonzalo; Perez-Fernandez, Ruth researched the compound: 2-Furoic hydrazide( cas:3326-71-4 ).Related Products of 3326-71-4.They published the article 《Nucleophilic catalysis of p-substituted aniline derivatives in acylhydrazone formation and exchange》 about this compound( cas:3326-71-4 ) in Organic & Biomolecular Chemistry. Keywords: phenylimino phenol preparation; hydroxy nitrobenzaldehyde acylhydrazide imine catalyst nucleophilic addition reaction; nitrobenzylidene acylhydrazone preparation mechanism kinetics. We’ll tell you more about this compound (cas:3326-71-4).

A mechanistic study and superior performance of electron-rich p-substituted aniline derivatives as catalysts for efficient hydrazone formation and exchange in both protic and aprotic solvents was reported. Rigorous kinetic analyses demonstrate that imine formation with 3-hydroxy-4-nitrobenzaldehyde and aniline derivatives proceeds with unprecedented third-order kinetics in which the aldehyde consistently shows a partial order of two. Computational investigations provide insights into the mechanisms of these transformations.

If you want to learn more about this compound(2-Furoic hydrazide)Related Products of 3326-71-4, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(3326-71-4).

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