Category: 2689-65-8

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 Stereospecific Synthesis of Tri- and Tetrasubstituted α-Fluoroacrylates by Mizoroki-Heck Reaction, published in 2016-02-05, which mentions a compound: 2689-65-8, mainly applied to stereospecific trisubstituted tetrasubstituted fluoroacrylate preparation; palladium catalyzed Mizoroki Heck reaction fluoroacylate aryl heteroaryl iodide; fluorinated analog therapeutic agent preparation Mizoroki Heck reaction, Category: naphthyridine.

Ligand-free, efficient, palladium-catalyzed Mizoroki-Heck reaction between Me α-fluoroacrylate and arene or hetarene iodides is reported for the first time. The reaction is stereospecific and provides fair to quant. yields of fluoroalkenes. The Mizoroki-Heck reaction starting from more hindered and usually reluctant trisubstituted acrylate, to access tetrasubstituted fluoroalkenes, is also reported. Finally, the use of a three-step synthesis sequence, including Mizoroki-Heck reaction, allows the synthesis of fluorinated analogs of therapeutic agents with high yield.

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

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 Furan derivatives. XLVI. Infrared spectra of substituted 2-furyl cyanides, published in 1975, which mentions a compound: 2689-65-8, Name is 5-Iodo-2-furaldehyde, Molecular C5H3IO2, COA of Formula: C5H3IO2.

The spectral data of the cyanides I (R = H, halo, Me, NO2, AcO) in CHCl3 and CCl4 were given and the influence of substituents and solvents on the wave numbers and integrated absorption intensities of the ν(CN) bands discussed. Wave numbers of the ν(CN) bands increased with increasing electron-acceptor ability of the substituents; the wave numbers were higher than those of the corresponding substituted Ph cyanides. Integrated absorption intensities of the ν(CN) bands decreased with increasing electron-acceptor ability of the substituents and were more significantly influenced by the nature of the substituents and the polarity of the solvents than the wave numbers of these bands.

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

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: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Improving the Solubility of Artificial Ligands of Streptavidin to Enable More Practical Reversible Switching of Protein Localization in Cells.Name: 5-Iodo-2-furaldehyde.

Chem. inducers that can control target-protein localization in living cells are powerful tools to investigate dynamic biol. systems. We recently reported the retention using selective hook or “”RUSH”” system for reversible localization change of proteins of interest by addition/washout of small-mol. artificial ligands of streptavidin (ALiS). However, the utility of previously developed ALiS was restricted by limited solubility in water. Here, we overcame this problem by X-ray crystal structure-guided design of a more soluble ALiS derivative (ALiS-3), which retains sufficient streptavidin-binding affinity for use in the RUSH system. The ALiS-3-streptavidin interaction was characterized in detail. ALiS-3 is a convenient and effective tool for dynamic control of a-mannosidase II localization between ER and Golgi in living cells.

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

Safety of 5-Iodo-2-furaldehyde. 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: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Ligand-Promoted Meta-C-H Arylation of Anilines, Phenols, and Heterocycles. Author is Wang, Peng; Farmer, Marcus E.; Huo, Xing; Jain, Pankaj; Shen, Peng-Xiang; Ishoey, Mette; Bradner, James E.; Wisniewski, Steven R.; Eastgate, Martin D.; Yu, Jin-Quan.

The authors report the development of a versatile 3-acetylamino-2-hydroxypyridine class of ligands that promote meta-C-H arylation of anilines, heterocyclic aromatic amines, phenols, and 2-benzyl heterocycles using norbornene as a transient mediator. More than 120 examples are presented, demonstrating this ligand scaffold enables a wide substrate and coupling partner scope. Meta-C-H arylation with heterocyclic aryl iodides as coupling partners is also realized for the first time using this ligand. The utility for this transformation for drug discovery is showcased by allowing the meta-C-H arylation of a lenalidomide derivative The first steps toward a silver-free protocol for this reaction are also demonstrated.

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

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: 5-Iodo-2-furaldehyde, is researched, Molecular C5H3IO2, CAS is 2689-65-8, about Furan derivatives. XLVI. Infrared spectra of substituted 2-furyl cyanides.Category: naphthyridine.

The spectral data of the cyanides I (R = H, halo, Me, NO2, AcO) in CHCl3 and CCl4 were given and the influence of substituents and solvents on the wave numbers and integrated absorption intensities of the ν(CN) bands discussed. Wave numbers of the ν(CN) bands increased with increasing electron-acceptor ability of the substituents; the wave numbers were higher than those of the corresponding substituted Ph cyanides. Integrated absorption intensities of the ν(CN) bands decreased with increasing electron-acceptor ability of the substituents and were more significantly influenced by the nature of the substituents and the polarity of the solvents than the wave numbers of these bands.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 5-Iodo-2-furaldehyde(SMILESS: IC1=CC=C(O1)C=O,cas:2689-65-8) is researched.Application of 4144-22-3. The article 《An unusual photochemical reaction of indene with furan and thiophene derivatives》 in relation to this compound, is published in Heterocycles. Let’s take a look at the latest research on this compound (cas:2689-65-8).

Photochem. substitution of iododfurans or iodothiophenes by indene gave 2-indenylfurans or -thiophenes. E.g., irradiation of 5-iodofuran-2-carboxaldehyde in MeCN in the presence of indene gave the substitution product I.

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

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 Ligand-Promoted Meta-C-H Arylation of Anilines, Phenols, and Heterocycles, published in 2016-07-27, which mentions a compound: 2689-65-8, Name is 5-Iodo-2-furaldehyde, Molecular C5H3IO2, SDS of cas: 2689-65-8.

The authors report the development of a versatile 3-acetylamino-2-hydroxypyridine class of ligands that promote meta-C-H arylation of anilines, heterocyclic aromatic amines, phenols, and 2-benzyl heterocycles using norbornene as a transient mediator. More than 120 examples are presented, demonstrating this ligand scaffold enables a wide substrate and coupling partner scope. Meta-C-H arylation with heterocyclic aryl iodides as coupling partners is also realized for the first time using this ligand. The utility for this transformation for drug discovery is showcased by allowing the meta-C-H arylation of a lenalidomide derivative The first steps toward a silver-free protocol for this reaction are also demonstrated.

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

Synthetic Route 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 Functionalization of C(sp3)-H bonds using a transient directing group. Author is Zhang, Fang-Lin; Hong, Kai; Li, Tuan-Jie; Park, Hojoon; Yu, Jin-Quan.

Proximity-driven metalation has been extensively exploited to achieve reactivity and selectivity in carbon-hydrogen (C-H) bond activation. Despite the substantial improvement in developing more efficient and practical directing groups, their stoichiometric installation and removal limit efficiency and, often, applicability as well. Here we report the development of an amino acid reagent that reversibly reacts with aldehydes and ketones in situ via imine formation to serve as a transient directing group for activation of inert C-H bonds. Arylation of a wide range of aldehydes and ketones at the β or γ positions proceeds in the presence of a palladium catalyst and a catalytic amount of amino acid. The feasibility of achieving enantioselective C-H activation reactions using a chiral amino acid as the transient directing group is also demonstrated.

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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.Rasanu, Nicolae; Maior, Ovidiu researched the compound: 5-Iodo-2-furaldehyde( cas:2689-65-8 ).Application In Synthesis of 5-Iodo-2-furaldehyde.They published the article 《Synthesis based on formylfuro(2,3-b) benzothiachromone》 about this compound( cas:2689-65-8 ) in Revue Roumaine de Chimie. Keywords: furobenzothiachromone. We’ll tell you more about this compound (cas:2689-65-8).

ο[(5-Formyl-2-furyl)thio]-benzoic acid, obtained from reaction of ο-mercaptobenzoic acid with 5-iodofurfural, cyclized (polyphosphoric acid) to give the furobenzothiachromone I (R = CHO), which when treated with HONH2 gave I (R = CH:NOH). The latter was converted (Ac2O) to the nitrile I (R = CN), hydrolysis (polyphosphoric acid) of which gave the expected amide I (R = CONH2).

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1,8-Naphthyridine | C8H6N2 – PubChem

Kaigorodova, E.A.; Kvak, S. N.; Ugrak, B. I.; Zaplishnyi, V. N.; Kul’nevich, V. G. published the article 《Studies on furopyridines. VI. Synthesis and stereostructure of hetarylmethylene-3-oxo-4-thiofuro[3,4-c]pyridines》. Keywords: furopyridine thio hetarylmethylene preparation stereochem; regioselective condensation heteroaromatic aldehyde thiofuropyridine.They researched the compound: 5-Iodo-2-furaldehyde( cas:2689-65-8 ).Related Products of 2689-65-8. 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:2689-65-8) here.

Condensation reaction of 6-methyl-3-oxo-4-thio-1H-furo[3,4-c]pyridine with heteroaromatic aldehydes proceeds regioselectively at the methylene center to give Z isomers of title compounds I (R = H, Z = O, S; R = Me, Br, iodo, Z = O) in s-cis conformations for furfuryl and in s-trans conformations for thenylmethylene derivatives

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