Tag: M.W=150-200

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Name: Pyridine-3-sulfonyl chloride.

Zhou, Zheng;Liu, Qianqian;Huang, Zhibin;Zhao, Yingsheng research published 《 A Bi(OTf)₃-Promoted Hydrosulfonylation of Alkenes with Sulfonyl Hydrazides: An Approach to Branched Sulfones》, the research content is summarized as follows. The Bi(OTf)₃-promoted hydrosulfonylation of alkenes with sulfonyl hydrazides to produce branched sulfones was reported, in which various branched sulfones (≥40 examples) were prepared in moderate to good yields. The gram-scale reaction and synthesis of the exptl. inhibitor precursor showed the potential application. A preliminary mechanistic study revealed that double-bond migration to form the α,β-conjugated alkene is crucial for this transformation.

Name: Pyridine-3-sulfonyl chloride, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., 16133-25-8.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is diamagnetic and has a diamagnetic susceptibility of −48.7 × 10−6 cm3·mol−1.The molecular electric dipole moment is 2.2 debyes. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. TThe standard enthalpy of formation is 100.2 kJ·mol−1 in the liquid phase and 140.4 kJ·mol−1 in the gas phase. Recommanded Product: 5-Bromopicolinaldehyde.

Zhu, Huiling;Liu, Peng;Liu, Hongxin;Ahmed, Ebrahim-Alkhalil M. A.;Hu, Xingen;Li, Juan;Xiao, Hong-Ping;Li, Xinhua;Jiang, Jun research published 《 Asymmetric synthesis of δ-substituted-β-keto esters and β-substituted ketones via carboxyl-assisted site- and enantio-selective addition reactions》, the research content is summarized as follows. Carboxyl-assisted site- and enantio-selective additions of polyfunctional nucleophiles to imines and carbonyls were developed, affording δ-substituted-β-keto esters and β-substituted ketones with good yields and enantioselectivities. Besides, short synthetic routes to bioactive mols. were also achieved.

31181-90-5, 5-Bromopyridine-2-carbaldehyde is a useful research compound. Its molecular formula is C6H4BrNO and its molecular weight is 186.01 g/mol. The purity is usually 95%.

5-Bromopyridine-2-carbaldehyde is a water soluble organic molecule that has been shown to inhibit the mitochondrial respiratory chain. It is a structural analog of the natural substrate for mitochondrial cytochrome c oxidase, 5-aminolevulinic acid. This compound has been shown to be selective against cancer cells and has anti-viral properties. The photophysical properties of 5-bromopyridine-2-carbaldehyde have been studied extensively. The fluorescence quantum yield of this molecule in aqueous solution is 0.06%., Recommanded Product: 5-Bromopicolinaldehyde

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Quality Control of 766-11-0.

Zhu, Qiming;Yuan, Qinghe;Chen, Mingwei;Guo, Mengping;Huang, Hanmin research published 《 Multicomponent Reactions with Cyclic Tertiary Amines Enabled by Facile C-N Bond Cleavage》, the research content is summarized as follows. A novel and catalyst-free multicomponent reaction with cyclic tertiary amines, electron-deficient aryl halides or heteroaromatic halides, and Na₂S enabled by facile C-N bond cleavage of the cyclic tertiary amines was developed. This direct and operationally simple method can be applied with a wide range of functional groups and provides an efficient and rapid approach to potentially drug-like products containing amine, azaarene, thioether, or phenol ether functionalities in good to excellent yields. The utility of this method was demonstrated by the rapid synthesis of the analgesic ruzadolane.

766-11-0, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , Quality Control of 766-11-0

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

In contrast to benzene, Pyridine’s electron density is not evenly distributed over the ring, reflecting the negative inductive effect of the nitrogen atom. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. For this reason, pyridine has a dipole moment and a weaker resonant stabilization than benzene (resonance energy 117 kJ·mol−1 in pyridine vs. 150 kJ·mol−1 in benzene). Computed Properties of 766-11-0.

Zhu, Qiming;Chen, Mingwei;Hu, Jinyu;Yang, Luyi research published 《 Facile N-Alkylation/N’-Arylation Process: A Direct Approach to Aromatic Aminoalkyl Amines》, the research content is summarized as follows. An intriguing C-N transformation involving a catalyst-free N-alkylation/N’-arylation process in a multicomponent reaction with secondary amines, cyclic tertiary amines and electron-deficient aryl halides has been described. In this case, the N-alkylation of secondary amines, utilizing cyclic tertiary amines as alkyl group sources, is enabled by a facile C-N cleavage. Such an operationally simple method could facilitate access to aromatic aminoalkyl amines, nitrogen-containing bioactive mols., in good to excellent yields.

Computed Properties of 766-11-0, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Electric Literature of 766-11-0.

Zhu, Qiming;Yang, Peng;Chen, Mingwei;Hu, Jinyu;Yang, Luyi research published 《 A Rapid Method to Aromatic Aminoalkyl Esters via the Catalyst-Free Difunctionalization of C-N Bonds》, the research content is summarized as follows. A novel multicomponent reaction involving a direct C-N esterification/arylation has been developed. This catalyst-free process was conducted with cyclic tertiary amines via a facile C-N cleavage to provide the alkyl group and nitrogen source. The operationally simple method to rapidly combine cyclic tertiary amines, haloazaarenes and carboxylic acids (or anhydrides) affords an efficient access to aromatic aminoalkyl esters, I (R = Me, Et, n-Pr, Ph, etc.; Ar = 2-pyridyl, 5-Br-2-pyridyl, etc.), potential drug-like products, in good to excellent yields.

Electric Literature of 766-11-0, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Product Details of C5H3BrFN.

Zhang, Chun-Hui;Spasov, Krasimir A.;Reilly, Raquel A.;Hollander, Klarissa;Stone, Elizabeth A.;Ippolito, Joseph A.;Liosi, Maria-Elena;Deshmukh, Maya G.;Tirado-Rives, Julian;Zhang, Shuo;Liang, Zhuobin;Miller, Scott J.;Isaacs, Farren;Lindenbach, Brett D.;Anderson, Karen S.;Jorgensen, William L. research published 《 Optimization of triarylpyridinone inhibitors of the main protease of SARS-CoV-2 to low-nanomolar antiviral potency》, the research content is summarized as follows. Non-covalent inhibitors of the main protease (M^pro) of SARS-CoV-2 having a pyridinone core were previously reported with IC₅₀ values as low as 0.018μM for inhibition of enzymic activity and EC₅₀ values as low as 0.8μM for inhibition of viral replication in Vero E6 cells. The series has now been further advanced by consideration of placement of substituted five-membered-ring heterocycles in the S4 pocket of M^pro and N-methylation of a uracil ring. Free energy perturbation calculations provided guidance on the choice of the heterocycles, and protein crystallog. confirmed the desired S4 placement. Here we report inhibitors with EC₅₀ values as low as 0.080μM, while remdesivir yields values of 0.5-2μM in side-by-side testing with infectious SARS-CoV-2. A key factor in the improvement is enhanced cell permeability, as reflected in PAMPA measurements. Compounds 19 (I) and 21 (II) are particularly promising as potential therapies for COVID-19, featuring IC₅₀ values of 0.044-0.061μM, EC₅₀ values of ca. 0.1μM, good aqueous solubility, and no cytotoxicity.

Product Details of C5H3BrFN, 5-Bromo-2-fluoropyridine is a useful research compound. Its molecular formula is C5H3BrFN and its molecular weight is 175.99 g/mol. The purity is usually 95%.
5-Bromo-2-fluoropyridine is a boronic acid that has been shown to react with iodides and form 5-bromo-2-fluoroiodobenzene. The reaction of 5-bromo-2-fluoropyridine with benzene gives the same product as the reaction with 1,3,5-trioxane. The UV absorption of 5-bromo-2-fluoropyridine is found at 230 nm and 260 nm. It also has an absorption band in the infrared region at 1625 cm−1. Vibrational progressions have been observed for this molecule, which are due to dipole moments and electron density distributions in the molecule.
5-bromo-2-fluoropyridine is used in the synthesis of heteroaromatic and aniline derivatives of piperidines as potent ligands used for vesicular acetylcholine transport. , 766-11-0.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. Category: pyridine-derivatives.

Zhang, Guofu;Guan, Chenfei;Zhao, Yiyong;Miao, Huihui;Ding, Chengrong research published 《 ‘Awaken’ aryl sulfonyl fluoride: a new partner in the Suzuki-Miyaura coupling reaction》, the research content is summarized as follows. An example of the activation of the -SO₂F group, which is traditionally considered a stable group even in the presence of a transition metal, is described using a novel partner in the Suzuki-Miyaura coupling reaction catalyzed by Pd(OAc)₂ and Ruphos as ligands. The products showed good to outstanding yields and broad functional group compatibility under optimal conditions. The sequential synthesis of non-sym. terphenyls and the gram grade process highlight the approach’s synthetic utility. DFT calculations have shown that Pd⁰ prefers to insert between C-S bonds rather than S-F bonds.

Category: pyridine-derivatives, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., 16133-25-8.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 5315-25-3, formula is C6H6BrN, Name is 2-Bromo-6-methylpyridine. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. Related Products of 5315-25-3.

Zhang, Hai-Jun;Chen, Longrui;Oderinde, Martins S.;Edwards, Jacob T.;Kawamata, Yu;Baran, Phil S. research published 《 Chemoselective, Scalable Nickel-Electrocatalytic O-Arylation of Alcohols》, the research content is summarized as follows. Herein a Ni-catalyzed electrochem. driven protocol to afford aryl-alkyl ether bonds through O-arylation of alcs. was depicted. This electrochem. method did not require strong base, exogenous expensive transition metal catalysts (e.g., Ir, Ru), and could easily be scaled up in either a batch or flow setting. Interestingly, e-etherification exhibited an enhanced substrate scope over the mechanistically related photochem. variant as it tolerated tertiary amine functional groups in the alc. nucleophile. with a broad substrate scope in an operationally simple way.

5315-25-3, 2-Bromo-6-methylpyridine (2BMPy) is a bromopyridine derivative. It is formed when 2-chloro-6-methylpyridine is heated with bromotrimethylsilane. Its synthesis from various methods have been reported.
2-Bromo-6-methylpyridine is a building block in the preparation of nitrogen containing heterocyclic compounds.
2-Bromo-6-methylpyridine is an organic compound that belongs to the group of pyridinium halides. It is soluble in common solvents such as water, ethanol, and acetone. 2BMPy has been shown to act as a glutamate receptor antagonist and has been used in the study of glutamate receptors, including their subtypes. This chemical has also been shown to have antioxidant properties and can be used in the prevention of atherosclerosis., Related Products of 5315-25-3

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine is colorless, but older or impure samples can appear yellow. 5315-25-3, formula is C6H6BrN, Name is 2-Bromo-6-methylpyridine. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Historically, pyridine was produced from coal tar. HPLC of Formula: 5315-25-3.

Zhang, Hong-Tao;Su, Xiao-Jun;Xie, Fei;Liao, Rong-Zhen;Zhang, Ming-Tian research published 《 Iron-Catalyzed Water Oxidation: O-O Bond Formation via Intramolecular Oxo-Oxo Interaction》, the research content is summarized as follows. Herein, we report the importance of structure regulation on the O-O bond formation process in binuclear iron catalysts. Three complexes, [Fe₂(μ-O)(OH₂)₂(TPA)₂]⁴⁺ (1), [Fe₂(μ-O)(OH₂)₂(₆-HPA)]⁴⁺ (2) and [Fe₂(μ-O)(OH₂)₂(BPMAN)]⁴⁺ (3), have been designed as electrocatalysts for water oxidation in 0.1 M NaHCO₃ solution (pH 8.4). We found that 1 and 2 are mol. catalysts and that O-O bond formation proceeds via oxo-oxo coupling rather than by the water nucleophilic attack (WNA) pathway. In contrast, complex 3 displays negligible catalytic activity. DFT calculations suggested that the anti to syn isomerization of the two high-valent Fe=O moieties in these catalysts takes place via the axial rotation of one Fe=O unit around the Fe-O-Fe center. This is followed by the O-O bond formation via an oxo-oxo coupling pathway at the Fe^IVFe^IV state or via oxo-oxyl coupling pathway at the Fe^IVFe^V state. Importantly, the rigid BPMAN ligand in complex 3 limits the anti to syn isomerization and axial rotation of the Fe=O moiety, which accounts for the negligible catalytic activity.

HPLC of Formula: 5315-25-3, 2-Bromo-6-methylpyridine (2BMPy) is a bromopyridine derivative. It is formed when 2-chloro-6-methylpyridine is heated with bromotrimethylsilane. Its synthesis from various methods have been reported.
2-Bromo-6-methylpyridine is a building block in the preparation of nitrogen containing heterocyclic compounds.
2-Bromo-6-methylpyridine is an organic compound that belongs to the group of pyridinium halides. It is soluble in common solvents such as water, ethanol, and acetone. 2BMPy has been shown to act as a glutamate receptor antagonist and has been used in the study of glutamate receptors, including their subtypes. This chemical has also been shown to have antioxidant properties and can be used in the prevention of atherosclerosis., 5315-25-3.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

At 25 °C pyridine has a viscosity of 0.88 mPa/s and thermal conductivity of 0.166 W·m−1·K−1. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. The enthalpy of vaporization is 35.09 kJ·mol−1 at the boiling point and normal pressure.The enthalpy of fusion is 8.28 kJ·mol−1 at the melting point. Application In Synthesis of 16133-25-8.

Zhang, Jiawei;Kong, Kaimin;Li, Xiangjun;Zhang, Qian research published 《 Kemp-type elimination of 1-arylsulfonyl-3-iodo-1H-indazoles》, the research content is summarized as follows. An intriguing ring-opening reaction of 1-arylsulfonyl-3-iodo-1H-indazoles, which can afford the corresponding ortho-(arylsulfonylamino)benzonitriles under base catalysis, was obtained unexpectedly. Herein, the optimal reaction conditions were explored and the results showed that high temperature and aprotic polar solvent are favorable to the ring-opening reaction. Most of the substrates studied can provide the corresponding ring-opening products in moderate to good yields after stirring in DMSO with K₂CO₃ at 120°C for 18 h, suggesting the excellent compatibility of functional groups and the broad substrate scope of this reaction. Furthermore, the control experiments implied that 1-arylsulfonyl-3-iodoindazoles go through an E2 elimination mechanism similar to Kemp elimination.

16133-25-8, Pyridine-3-sulfonyl chloride is a useful research compound. Its molecular formula is C5H4ClNO2S and its molecular weight is 177.61 g/mol. The purity is usually 95%.
Pyridine-3-sulfonyl chloride is a reagent used in the synthesis of pyrimidine derivatives with anti-proliferative activity against negative breast cancer cells.
Pyridine-3-sulfonyl chloride is a chemical compound that binds to the active site of cytochrome P450 enzymes. It can be used to study the effects of matrix effect on reaction solution. Pyridine-3-sulfonyl chloride has been shown to have an UV absorption spectrum with a maximum at 280 nm and a p450 activity that is proportional to the concentration of human serum. This compound has been shown to inhibit kinase domain in vitro assays, which may have clinical relevance in the treatment of obesity., Application In Synthesis of 16133-25-8

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem