Category: 2689-65-8

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 3-(5-X-2-Furyl)-2-cyanoacrylonitriles on reaction with 2-cyanomethylbenzothiazole, published in 1991-02-28, which mentions a compound: 2689-65-8, Name is 5-Iodo-2-furaldehyde, Molecular C5H3IO2, Product Details of 2689-65-8.

2-Cyanomethylbenzothiazole reacts with 3-(5-substituted 2-furyl)-, 3-(2-thienyl)- or 3-(2-pyrrolyl)-2-cyanoacrylonitrile in THF under catalysis of triethylamine to give 1-(2-benzothiazolyl)-1-acyano-2-heteroarylethylenes e.g. I (R = H, X = O, S, NH; R = Br, Me, NO2, X = O) as a result of replacement of malonodinitrile by 2-cyanomethylbenzothiazole.

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1,8-Naphthyridine – Wikipedia,
1,8-Naphthyridine | C8H6N2 – PubChem

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.Osipov, O. A.; Sheinker, V. N.; Kuzharov, A. S.; Nazarova, Z. N.; Derecha, E. G.; Bulgarevich, S. B. researched the compound: 5-Iodo-2-furaldehyde( cas:2689-65-8 ).Related Products of 2689-65-8.They published the article 《Structure and properties of heterocyclic compounds and complexes. III. Conformations of substituted furfurals studied by dipole moments and Kerr effect methods》 about this compound( cas:2689-65-8 ) in Zhurnal Obshchei Khimii. Keywords: furfural conformation dipole; dipole moment furfural; Kerr effect furfural. We’ll tell you more about this compound (cas:2689-65-8).

Conformational equilibrium of 3-bromo-, 5-bromo-, 4,5-dibromo-, 3-methyl-, 5-methyl-, 5-iodo-, and 5-nitro-2-furaldehyde were determined Substituent repulsion energy played a significant role in determining relative conformational stabilities.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Novel Allosteric Ligands of γ-Aminobutyric Acid Transporter 1 (GAT1) by MS Based Screening of Pseudostatic Hydrazone Libraries, the main research direction is nipecotic acid pseudostatic hydrazone library preparation GAT1 allosteric ligand.Computed Properties of C5H3IO2.

This study describes the screening of dynamic combinatorial libraries based on nipecotic acid as core structure with substituents attached to the 5- instead of the common 1-position for the search of novel inhibitors of the GABA transporter GAT1. The generated pseudostatic hydrazone libraries included a total of nearly 900 compounds and were screened for their binding affinities toward GAT1 in competitive mass spectrometry (MS) based Binding Assays. Characterization of the hydrazones with the highest affinities (with cis-configured compound I bearing a 5-(1-naphthyl)furan-2-yl residue and a four atom spacer being the most potent) in binding and uptake experiments revealed an allosteric interaction at GAT1, which was not reported for any other nipecotic acid derivative up to now. Therefore, the herein introduced 5-substituted nipecotic acid derivatives could serve as valuable tools for investigations of allosterically modulated GABA transport mediated by GAT1 and furthermore as starting point for a new class of GAT1 inhibitors.

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Computed Properties of C5H3IO2. 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: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Study of the nucleophilic substitution of halogens in furan compounds. (I). Furfurals. Author is Mocelo, R.; Pustovarov, V..

5-Bromofurfural (I, R = Br) was prepared by treating I (R = H) in dichloroethane with Br in the presence of hydroquinone. Reaction of I (R = Br) with LiCl in DMF gave 74% I (R = Cl) and with KI-HOAc gave 80% I (R = I). I (R = I) was similarly obtained in 44% yield from I (R = Cl). I (R = Cl) could also be converted to I (R = Br) with KBr-HOAc.

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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Practical Intermolecular Hydroarylation of Diverse Alkenes via Reductive Heck Coupling, published in 2018-10-05, which mentions a compound: 2689-65-8, mainly applied to alkene aryl iodide reductive Heck hydroarylation palladium; alkylarene regioselective preparation; palladium reductive Heck hydroarylation catalyst; Heck reaction; alkenes; hydroarylation; palladium; regioselectivity, Synthetic Route of C5H3IO2.

The hydroarylation of alkenes is an attractive approach to construct carbon-carbon (C-C) bonds from abundant and structurally diverse starting materials. A palladium-catalyzed reductive Heck hydroarylation of aliphatic and heteroatom-substituted terminal alkenes and select internal alkenes with an array of (hetero)aryl iodides, is reported. The reaction is anti-Markovnikov selective with terminal alkenes and tolerates a wide variety of functional groups on both the alkene and (hetero)aryl coupling partners. Addnl., applications of this method to complex mol. diversifications are demonstrated. Mechanistic experiments are consistent with a mechanism in which the key alkylpalladium(II) intermediate is intercepted with formate and undergoes a decarboxylation/C-H reductive elimination cascade to afford the saturated product and turn over the cycle.

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1,8-Naphthyridine – Wikipedia,
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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: 2689-65-8, is researched, SMILESS is IC1=CC=C(O1)C=O, Molecular C5H3IO2Journal, Zbornik Prac Chemickotechnologickej Fakulty SVST called Furan derivatives. LXXVIII. Condensation of 4-nitrobenzyl dichloromethyl sulfone with furfurals, Author is Jurasek, A.; Kovac, J.; Nemlahova, J., the main research direction is condensation nitrobenzyl chloromethyl sulfone furfural; furylnitrophenylvinyl sulfone; vinyl sulfone furylnitrophenyl.Synthetic Route of C5H3IO2.

4-O2NC6H4CH2Br reacted with Cl2CHSO2Na in DMF at 60° to give 60.3% 4-O2NC6H4CH2SO2CHCl2, which condensed with furfurals I (R = H, Br, iodo, CO2Me) to give 5-10% yields of the corresponding furyl(nitrophenyl)vinyl sulfones II, for which IR and NMR spectral data are interpreted.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Halogen-substituted products of furfural》. Authors are Scheibler, Helmuth; Jeschke, Johannes; Beiser, Willy.The article about the compound:5-Iodo-2-furaldehydecas:2689-65-8,SMILESS:IC1=CC=C(O1)C=O).Reference of 5-Iodo-2-furaldehyde. Through the article, more information about this compound (cas:2689-65-8) is conveyed.

Furfural diacetate (I) and Br in CHCl3 give 10% of sym-bromofurfural (2-bromo-5-formylfuran), b16 112°, m. 85°; PhNH2 in 50% AcOH gives a characteristic orange-red color; oxime, m. 101°; semicarbazone, m. 215° (corrected, decomposition); phenylhydrazone, m. 80-5°. The di-Et acetal and diacetate could not be prepared Concentrated EtOH-KOH gives bromopyromucic acid. Improved directions are given for the preparation of tetraiodofuran (67% yield). I in AcOH and Hg(OAc)2 give 82% of a trimercuriacetate compound, containing free Hg(OAc)2 which cannot be removed without decomposition of the Hg compound With 0.35% EtOH-HCl there results 86% of the trimercurichloride, which reacts with I in Et2O to give, among other products, sym-iodofurfural, m. 110°.

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Name: 5-Iodo-2-furaldehyde. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Copper-Mediated Fluoroalkylation of Aryl Iodides Enables Facile Access to Diverse Fluorinated Compounds: The Important Role of the (2-Pyridyl)sulfonyl Group. Author is Zhao, Yanchuan; Gao, Bing; Ni, Chuanfa; Hu, Jinbo.

The (2-pyridyl)sulfonyl group was found to be a multifunctional group in the preparation of structurally diverse fluorinated products. It not only facilitates the copper-mediated (or catalyzed) cross-coupling reaction between α-fluoro sulfone and aryl iodides, but also enables further transformations of the coupling products.

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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, Revista CENIC, Ciencias Fisicas called Chemical shifts and JC13-H coupling constants in 5-substituted furfurals, Author is Rodriguez, M.; Gra Rios, Rafael, which mentions a compound: 2689-65-8, SMILESS is IC1=CC=C(O1)C=O, Molecular C5H3IO2, Name: 5-Iodo-2-furaldehyde.

The coupling constants between 13C and H were obtained from the PMR spectra of 5 substituted furfurals in 3M solutions in Me2SO. The charge ds. were calculated by using the Pariser Parr-Pople method. Good correlations were found for the chem. shifts for the H atom except for the 3 position. Therefore in positions 4 and α, the chem. shifts depend mainly of the π-electron d., whereas for the 3 position, the mesomeric effect of the substituent may be neglected. For the coupling constants there is a linear relation between JC13-Hα, JC13-H3 and the McDaniel and Brown (1958) constants σp and σm resp. For JC13-H4 vs. σp, the correlation is poor. The linear correlation between JC13-H3 and the chem. shifts for the H in position 3 implies that the chem. shifts in the 3 position are determined by electronic factors, mainly by variations in the σ-electron d.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 2689-65-8, is researched, Molecular C5H3IO2, about Ligand-Promoted meta-C-H Functionalization of Benzylamines, the main research direction is ligand promoted meta CH functionalization benzylamine; amination; benzylamines; chlorination; meta-C−H arylation; pyridone ligand.Synthetic Route of C5H3IO2.

Meta-C-H functionalization of benzylamines has been developed using a PdII/transient mediator strategy. Using 2-pyridone ligands and 2-carbomethoxynorbornene (NBE-CO2Me) as the mediator, arylation, amination, and chlorination of benzylamines are realized. This protocol features a broad substrate scope and is compatible with heterocylic coupling partners. Moreover, the loading of the Pd can be lowered to 2.5 mol % by using the optimal ligand.

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