Pyridine-derivatives

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. Application In Synthesis of 766-11-0.

Stambirskyi, Maksym V.;Kostiuk, Tetiana;Sirobaba, Serhii I.;Rudnichenko, Alexander;Titikaiev, Dmytro L.;Dmytriv, Yurii V.;Kuznietsova, Halyna;Pishel, Iryna;Borysko, Petro;Mykhailiuk, Pavel K. research published 《 Phosphine Oxides (-POMe₂) for Medicinal Chemistry: Synthesis, Properties, and Applications》, the research content is summarized as follows. A general practical approach to hetero(aromatic) and aliphatic P(O)Me₂-substituted derivatives is elaborated. The key synthetic step was a [Pd]-mediated C-P coupling of (hetero)aryl bromides/iodides with HP(O)Me₂. The P(O)Me₂ substituent was shown to dramatically increase solubility and decrease lipophilicity of organic compounds This tactic was used to improve the solubility of the antihypertensive drug prazosin without affecting its biol. profile.

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. , Application In Synthesis of 766-11-0

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. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. 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. Related Products of 16133-25-8.

Song, Xuyan;He, Yunlu;Wang, Bo;Peng, Sanwen;Pan, Xi;Wei, Min;Liu, Qiang;Qin, Hua-Li;Tang, Haolin research published 《 Synthesis of aryl sulfonyl fluorides from aryl sulfonyl chlorides using sulfuryl fluoride (SO₂F₂) as fluoride provider》, the research content is summarized as follows. A highly efficient method for the synthesis of aryl sulfonyl fluorides ArSO₂F [Ar = 4-MeC₆H₄, 4-PhC₆H₄, 4-ClC₆H₄, etc.] was developed from aryl sulfonyl chlorides using SO₂F₂ as fluoride source in up to 98% isolated yield under mild conditions. Gram scale experiments were also conducted, revealing the good practicality of this new protocol.

Related Products of 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., 16133-25-8.

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

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. Reference of 16133-25-8.

Song, Xinning;Jiang, Zhiyang;Li, Jianing;Lu, Xingxing;Han, Qing;Zhu, Kai;Li, Huilin;Ling, Yun;Duan, Hongxia research published 《 Synthesis, antifungal activity, and molecular dynamics study of novel geranyl aromatic sulfonamide compounds as potential complex III inhibitors》, the research content is summarized as follows. Essential oils (EOs), as unique natural products, are promising resources for the discovery of green agrochems. The main ingredient geraniol of citronella oil was found to exhibit substantial antifungal activities in this study. Therefore, a series of novel geranyl aromatic sulfonamide compounds were synthesized and found to display considerable antifungal activities. Two geranyl thiofuran-sulfonamide compounds 4c-1 (median effective concentration (EC50) against Rhizoctonia solani: 24.97 mg/L and EC50 against Sclerotinia sclerotiorum: 27.26 mg/L), 4c-2 (EC50 against S. sclerotiorum: 18.53 mg/L) and one geranyl pyridine-sulfonamide compound 4d-2 (EC50 against R. solani: 29.31 mg/L and EC50 against S. sclerotiorum: 29.98 mg/L) were screened as “star mols.” due to their excellent antifungal activities. The preliminary structure-activity relationship (SAR) study revealed that the introduction of various aromatic heterocycles maybe an efficient protocol to improve the fungicidal activities of geranyl aromatic sulfonamide compounds The mol. mechanisms of the geranyl aromatic sulfonamide compounds were clarified by performing mol. docking and mol. dynamics (MD) simulations. Three “star mols.” of these geranyl aromatic sulfonamide compounds were found to bind to Complex III through several hydrogen bonds and π-interactions with crucial residues TRP17, GLY20 etc. Their binding free energies were calculated to be strong ranging from -50.60 to -39.44 kcal/mol by MM/GBSA method, which suggested the geranyl aromatic sulfonamide compounds were potential Complex III inhibitors. The main component originating from the natural plant EOs ought to be studied in the future to discover novel pathogenic fungicidal candidates.

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., Reference of 16133-25-8

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

Pyridine has a conjugated system of six π electrons that are delocalized over the ring. 31181-90-5, formula is C6H4BrNO, Name is 5-Bromopicolinaldehyde. The molecule is planar and, thus, follows the Hückel criteria for aromatic systems. COA of Formula: C6H4BrNO.

Song, Xiaoxiao;Fan, Yanjun;Zhu, Zhiming;Ni, Qijian research published 《 Chiral Phosphoric Acid-Catalyzed Asymmetric Arylation of Indolizines: Atroposelective Access to Axially Chiral 3-Arylindolizines》, the research content is summarized as follows. A highly straightforward strategy for the synthesis of a new axially chiral 3-arylindolizine I (R = Me, Bn, n-Pr, etc.; R¹ = H, 5-Me, 6-Cl, 8-F, etc.; R² = 2-nitrophenyl, ethoxycarbonyl, (benzyloxy)carbonyl, etc.) and Et 3-[3,6-dihydroxy-2-(methoxycarbonyl)phenyl]indolizine-2-carboxylate scaffold via organocatalytic asym. arylation reactions of indolizinecarboxylates and p-quinone esters and Me 3,6-dioxocyclohexa-1,4-diene-1-carboxylate was reported. Using the chiral phosphoric acid catalyst, a series of axially chiral 3-arylindolizines I was accessed in good to excellent yields and atropo-enantioselectivities. This approach features a broad substrate scope, mild reaction conditions, good scalability, and facile derivatization. Moreover, preliminary investigations based on nonlinear effects and a thermal racemization study demonstrated the intrinsic pathway for the formation of axial chirality and its potential utility.

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%., COA of Formula: C6H4BrNO

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. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. 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. Category: pyridine-derivatives.

Song, Wenyue;Rao, Xiaofeng;Bu, Qingqing;Liu, Ning research published 《 Carbazole-bridged NCN-pincer palladium complex catalyzed direct C-H arylation reaction of azoles》, the research content is summarized as follows. A new type of pincer palladium complexes C1∼C6 based on the strong donor strength of carbazoles skeleton were synthesized. The air- and moisture-stable complexes C1∼C6 act as efficient catalysts for the direct arylation of azoles with (hetero)aryl bromides in good to excellent yields with broad substrate scope used KOAc as sole base under aerobic conditions. It was demonstrated that this developed protocol was used as catalytic system for the direct C-H bond arylation of thiazoles under relatively mild reaction conditions at a low catalyst loading of 0.5 mol%.

Category: pyridine-derivatives, 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 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. Formula: C5H4ClNO2S.

Song, Qinghao;Zhao, He;Sun, Yanping;Jiang, Huanfeng;Zhang, Min research published 《 Direct C(sp³)-H Sulfonylation of Xanthene Derivatives with Sodium Sulfinates by Oxidative Copper Catalysis》, the research content is summarized as follows. By employing a readily available CuCl/DDQ catalyst system, herein a direct C(sp³)-H sulfonylation of xanthene derivates I (R = H, Me; R¹ = H, Me, Cl, Et, etc.;RR¹ = -CH=CH-CH=CH-; R² = H, Me, Br, CF₃, Ph; R³ = H, Me, Et, Cl; Z = O, S, NCH₃, NBn, etc.) with odorless sodium sulfinates R⁴S(O)₂Na (R⁴ = Me, Ph, 4-chlorophenyl, thiophen-2-yl, etc.) was reported. Various 9H-xanthenes I (Z = O), thioxanthenes I (Z = S), and 9,10-dihydroacridines I (Z = NCH₃, NPh, NBn, NCbz) are efficiently transformed into the desired benzylic sulfonyl products II via a radical/radical cross-coupling process, proceeding with the merits of broad substrate scope, operational simplicity, good functional group compatibility, and mild reaction conditions.

Formula: C5H4ClNO2S, 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 a basic heterocyclic organic compound with the chemical formula C5H5N. It is structurally related to benzene, with one methine group (=CH−) replaced by a nitrogen atom. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. It is a highly flammable, weakly alkaline, water-miscible liquid with a distinctive, unpleasant fish-like smell. Name: Pyridine-3-sulfonyl chloride.

Song, Mengmeng;Zhang, Zhiguo;Zheng, Dan;Li, Xiang;Liang, Rui;Zhao, Xu-na;Shi, Lei;Zhang, Guisheng research published 《 Hypervalent organoiodine promoted dearylation reaction of N-aryl sulfonamides》, the research content is summarized as follows. An efficient Dess-Martin periodinane (DMP)-promoted dearylation of N-arylsulfonamides RS(O)₂NHR¹ (R = Ph, 2-naphthyl, 2-thienyl, etc.; R¹ = quinolin-8-yl, 2-methylphenyl, 4-methylbenzyl, etc.) was developed through a highly selective oxidative cleavage of the inert C (aryl)-N bonds in secondary sulfonamides while leaving the S-N bond unchanged. This metal-free reaction proceeds under mild conditions and provides access to various biol. important primary sulfonamides, some of which are otherwise unattainable using conventional aminolysis and hydrolysis methods. The concise and efficient dearylation reaction provides the use of an aryl group as a removable protecting sulfonamide group under metal catalyst-free conditions.

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. 16133-25-8, formula is C5H4ClNO2S, Name is Pyridine-3-sulfonyl chloride. 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. Reference of 16133-25-8.

Song, Fan;Shao, Xiaotao;Zhu, Jing;Bao, Xiaofeng;Du, Lei;Kan, Chun research published 《 Reversible “turn-off-on” fluorescence response of Fe(III) towards Rhodamine B based probe in vivo and plant tissues》, the research content is summarized as follows. A Fe³⁺-specific probe (N-TC)(I) based on Rhodamine B was designed and synthesized. N-TC has a good spectral response to Fe³⁺ in the EtOH/H₂O solution (1:1, volume/volume, HEPES, 0.5 mM, pH = 7.38) with low detection limits and high binding constants N-TC displays the reversible “turn-off-on” fluorescence response with 1:1 binding stoichiometry. It is further proven to be practical in sensitively monitoring trace Fe³⁺ in environmental water specimens. Biol. experiments demonstrated that N-TC can be resp. used as a probe for detection of Fe³⁺ in living cells, animals and plant tissues.

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., Reference of 16133-25-8

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. Electric Literature of 16133-25-8.

Song, Fan;Yang, Chao;Shao, Xiaotao;Du, Lei;Zhu, Jing;Kan, Chun research published 《 A reversible “turn-off-on” fluorescent probe for real-time visualization of mercury(II) in environmental samples and its biological applications》, the research content is summarized as follows. In this study, we synthesized a novel fluorescent probe (S-TC) based on Thiooxo-Rhodamine B. In the design of the probe, we sulfided carbonyl groups of rhodamine spironolactam to thiocarbonyl groups. C=S functional group was used as a recognition group for Hg²⁺. S-TC has a good spectral response to Hg²⁺ in the EtOH/H₂O solution (1:1, volume/volume) with low detection limits and high binding constants The detection limit and the association constant was calculated as 0.077 μM and 1.70 × 10⁴ M^-1, resp. S-TC displayed the traditional reversible “turn-off-on” fluorescence change with 1:1 binding stoichiometry. It is feasible to detect Hg²⁺ in real environmental water by S-TC. Biol. experiments demonstrated that S-TC can be used to detect to Hg²⁺ in living cells, animals and plant tissues.

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., Electric Literature of 16133-25-8

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem

The critical parameters of pyridine are pressure 6.70 MPa, temperature 620 K and volume 229 cm3·mol−1. 766-11-0, formula is C5H3BrFN, Name is 5-Bromo-2-fluoropyridine. In the temperature range 340–426 °C its vapor pressure p can be described with the Antoine equation.. Formula: C5H3BrFN.

Song, A-Xiang;Zeng, Xiao-Xiao;Ma, Bei-Bei;Xu, Chang;Liu, Feng-Shou research published 《 Direct (Hetero)arylation of Heteroarenes Catalyzed by Unsymmetrical Pd-PEPPSI-NHC Complexes under Mild Conditions》, the research content is summarized as follows. With the aim of developing a facile and efficient method to access structurally intriguing and valuable functionalized (hetero)aryls, two unsym. Pd-PEPPSI-type NHC complexes (PEPPSI, pyridine-enhanced precatalyst preparation, stabilization, and initiation; NHC, N-heterocyclic carbene) were designed and synthesized to catalyze the direct arylation of heteroarenes with (hetero)aryl bromides. The use of this unsym. strategy led to much higher efficiency in comparison to the commonly used C₂-sym. Pd-PEPPSI-type NHC complexes. Also, a broad range of heteroaromatics and (hetero)aryl bromide partners with a wide variety of functional groups were all amenable to the developed protocol even at ≥0.05 mol % catalyst loading and under aerobic conditions. More importantly, along with the authors’ study, also the present protocol could provide expedient access to the gram-scale synthesis of the muscle relaxant drug dantrolene and conjugated mesopolymers.

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. , Formula: C5H3BrFN

Referemce:
Pyridine – Wikipedia,
Pyridine | C5H5N – PubChem