Tag: M.W:100-200

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (S)-Propane-1,2-diamine dihydrochloride, is researched, Molecular C3H12Cl2N2, CAS is 19777-66-3, about Preclinical characterization of substituted 6,7-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-8(5H)-one P2X7 receptor antagonists, the main research direction is dihydrotriazolopyrazinone P2X7 receptor antagonist SAR preparation; 6,7-Dihydro-[1,2,4]triazolo[4,3-a]pyrazin-8(5H)-one; Autoradiography; CNS; Depression; P2X7.Computed Properties of C3H12Cl2N2.

The synthesis, SAR, and preclin. characterization of a series of substituted 6,7-dihydro[1,2,4]triazolo[4,3]pyrazin-8(5H)-one P2X7 receptor antagonists are described. Optimized leads from this series comprise some of the most potent human P2X7R antagonists reported to date (IC50s < 1 nM). They also exhibit sufficient potency and oral bioavailability in rat to enable extensive in vivo profiling. Although many of the disclosed compounds are peripherally restricted, compound I is brain penetrant and upon oral administration demonstrated dose-dependent target engagement in rat hippocampus as determined by ex vivo receptor occupancy with radiotracer II (ED50 = 0.8 mg/kg). There is still a lot of research devoted to this compound(SMILES：C[C@H](N)CN.[H]Cl.[H]Cl)Computed Properties of C3H12Cl2N2, and with the development of science, more effects of this compound(19777-66-3) can be discovered.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Application In Synthesis of 8-Hydroxyquinoline 1-oxide. 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: 8-Hydroxyquinoline 1-oxide, is researched, Molecular C9H7NO2, CAS is 1127-45-3, about A new non-metal heterogeneous catalyst for the activation of hydrogen peroxide: a perfluorinated ketone attached to silica for oxidation of aromatic amines and alkenes. Author is Neimann, Karine; Neumann, Ronny.

A silane functionalized by octafluoroacetophenone was polymerized by the sol-gel method to form an insoluble silicate with perfluoroketone pendants; the silicate was used as a heterogeneous catalyst for the activation of aqueous hydrogen peroxide and the oxidation of aromatic amines and alkenes.

There is still a lot of research devoted to this compound(SMILES：OC1=CC=CC2=CC=C[N+]([O-])=C12)Application In Synthesis of 8-Hydroxyquinoline 1-oxide, and with the development of science, more effects of this compound(1127-45-3) can be discovered.

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Quinoxaline – Wikipedia,
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Electric Literature of F2H8NiO4. 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: Nickel(ii)fluoridetetrahydrate, is researched, Molecular F2H8NiO4, CAS is 13940-83-5, about Effects of the external magnetic field and chemical combination on Kβ/Kα X-ray intensity ratios of some nickel and cobalt compounds. Author is Porikli, S.; Kurucu, Y..

A systematic study of x-ray intensity ratios of the K-series lines was made on compounds of Ni and Co to examine the influence of chem. state and 0.6 and 1.2 T external magnetic fields on energy-dispersive x-ray fluorescence anal. The samples were excited by 22.69 keV x-rays emitted from a Cd-109 radioisotope source and characteristic K x-rays emitted from the samples were counted by an Si(Li) detector. For B = 0, the present exptl. results were compared with the exptl. and theor. data in literature. The results demonstrate a clear dependence of the Kβ/Kα intensity ratios on the chem. state of the element in the sample and values of external magnetic field.

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Quinoxaline – Wikipedia,
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Reference of Nickel(ii)fluoridetetrahydrate. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Nickel(ii)fluoridetetrahydrate, is researched, Molecular F2H8NiO4, CAS is 13940-83-5, about Effect of triethylamine/anhydrous HF ratio on the anodic polarization of nickel in acetonitrile media. Author is Noel, M.; Suryanarayanan, V.; Krishnamoorthy, S..

The effect of the addition of 0.5M, 1.5M, 3M and 4.5M triethylamine in acetonitrile containing 3M anhydrous HF (AHF) on the anodic polarization behavior of Ni was studied using cyclic voltammetry and chronoamperometry. The structure and composition of the film formed on a nickel electrode in these media was studied using SEM and XRD. The severe dissolution noticed in aqueous HF solution decreases significantly in acetonitrile containing AHF. Addition of small molar ratios of triethylamine leads to enhanced uniform dissolution due to the simultaneous presence of H+ as well as fluoride ions. Further addition of triethylamine suppresses the HF concentration This leads to anodic dissolution at a significantly more pos. potential. Dissolution and film growth occurs as individual crystallites. In all cases, NiF2·4H2O and another phase is formed on the electrode surface.

There is still a lot of research devoted to this compound(SMILES：[H]O[H].[H]O[H].[H]O[H].[H]O[H].[Ni+2].[F-].[F-])Reference of Nickel(ii)fluoridetetrahydrate, and with the development of science, more effects of this compound(13940-83-5) can be discovered.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Electric Literature of C9H7NO2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 8-Hydroxyquinoline 1-oxide, is researched, Molecular C9H7NO2, CAS is 1127-45-3, about Structures of pyridine and quinoline-N-oxide. Author is Desiderato, Robert; Terry, J. C..

8-Hydroxyquinoline 1-oxide (I) and 2-(hydroxymethyl)pyridine 1-oxide (II) exhibited lengthened N-O bond distances (1.333 and 1.332 Å) due to delocalization of the nonbonding electron on the O as a result of H bonding. The H bond between the hydroxyl H and the dative O is intramol. (1.42 Å long) in I and intermol. in II (1.99 Å long). The pyridine and quinoline moieties are planar. Crystals have monoclinic symmetry, space group P21/c, and Z = 4. Compound, lattice constants a, b, c, and cos. β are: I, 12.136, 4.921, 13.138 Å, -0.3376; II, 7.079, 8.046, 10.599 Å, -0.2254.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Computed Properties of C9H11Br. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-(Bromomethyl)-4-ethylbenzene, is researched, Molecular C9H11Br, CAS is 57825-30-6, about Discovery of new benzensulfonamide derivatives as tripedal STAT3 inhibitors. Author is Guo, Jianpeng; Yu, Wenying; Cai, Guiping; Zhang, Wenda; Li, Shanshan; Zhu, Jiawen; Song, Dongmei; Kong, Lingyi.

Persistent activated STAT3 has a striking correlation with cancer development and inhibition of STAT3 signaling pathway is a novel therapeutic way for human cancers. Among STAT family, STAT1 and STAT3 play opposite roles in tumorigenesis. However, the discovery of selective STAT3 inhibitors is still challenging to date. In this study, a series of small-mol. (MW<500) benzensulfanilamide derivatives were designed to selectively suppress STAT3 activation for anti-cancer treatment. The most potent compound 11 inhibited both overexpressed and IL-6 induced STAT3 phosphorylation, whereas 11 displayed little effect on the phosphorylation of other STAT isoforms STAT1, STAT5, demonstrating 11 was a selective STAT3 inhibitor. Meanwhile, 11 dismissed STAT3 DNA binding activity and colony formation. In addition, 11 elevated the ROS level and induced apoptosis of cancer cells. Furthermore, 11 effectively suppressed tumor growth in an in vivo mouse-xenograft model. There is still a lot of research devoted to this compound(SMILES：CCC1=CC=C(CBr)C=C1)Computed Properties of C9H11Br, and with the development of science, more effects of this compound(57825-30-6) can be discovered.

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Quinoxaline – Wikipedia,
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Related Products of 217192-22-8. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (4-(Pyridin-4-yl)phenyl)methanol, is researched, Molecular C12H11NO, CAS is 217192-22-8, about A Switchable Catalyst Duo for Acyl Transfer Proximity Catalysis and Regulation of Substrate Selectivity. Author is Goswami, Abir; Gaikwad, Sudhakar; Schmittel, Michael.

Enzymes are encoded with a gamut of information to catalyze a highly selective transformation by selecting the proper reactants from an intricate mixture of constituents. Mimicking biol. machinery, two switchable catalysts with differently sized cavities and allosteric control are conceived that allow complementary size-selective acyl transfer in an on/off manner by modulating the effective local concentration of the substrates. Selective activation of one of two catalysts in a mixture of reactants of similar reactivity enabled upregulation of the desired product.

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Quinoxaline – 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: 217192-22-8, is researched, SMILESS is OCC1=CC=C(C2=CC=NC=C2)C=C1, Molecular C12H11NOJournal, Inorganica Chimica Acta called Cationic cyclopalladated ferrocenylpyrimidine complex as an efficient catalyst for the synthesis of substituted biarylmethanol by the Suzuki reaction in water, Author is Li, Hong-Mei; Xu, Chen; Hao, Xin-Qi; Li, Zhen; Wang, Zhi-Qiang; Fu, Wei-Jun; Song, Mao-Ping, the main research direction is cationic cyclopalladated ferrocenylpyrimidine catalyst preparation crystal mol structure catalyst; Suzuki reaction aryl halide hydroxymethyl phenylboronic acid cyclopalladated ferrocenylpyrimidine.Reference of (4-(Pyridin-4-yl)phenyl)methanol.

A new cationic cyclopalladated ferrocenylpyrimidine 2 has been synthesized and characterized by elemental anal., IR, 1H and C13 NMR. Addnl., its detailed structure has been determined by single-crystal x-ray diffraction and intermol. C-H···O hydrogen bonds were found in the its crystal. 2 Was successfully used in Suzuki reaction of aryl bromides or chlorides excluding water-soluble group with 4-(hydroxymethyl)phenylboronic acid for the synthesis of substituted biarylmethanol in water. Complex 2 was very efficient for these reactions. Typically, using 0.5-1 mol% of catalyst in the presence of 3 equivalent of K3PO4·3H2O as base in water at 100° provided coupling products in good yields.

There is still a lot of research devoted to this compound(SMILES：OCC1=CC=C(C2=CC=NC=C2)C=C1)Reference of (4-(Pyridin-4-yl)phenyl)methanol, and with the development of science, more effects of this compound(217192-22-8) can be discovered.

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Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider

Recommanded Product: 57825-30-6. 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. Compound: 1-(Bromomethyl)-4-ethylbenzene, is researched, Molecular C9H11Br, CAS is 57825-30-6, about Reactions in microemulsion media. Nucleophilic substitution reactions of benzyl and p-alkylbenzyl chlorides.

The nucleophilic substitution rates of Br- with p-RC6H4CH2Cl (R = H, Et, n-dodecyl) decreased differentially with increasing hexane content in microemulsions formed from ternary hexane systems at constant ratios of the binary mixtures of 1.23:1 (weight/weight) CTAB-1-butanol and 1:5 (weight/weight) KBr-H2O. The kinetics show that the interphase was the microemulsion reactive site. For microemulsions with respect to aqueous micellar and aqueous EtOH reaction mediums, substrate solubilization was higher, initial reaction rates were comparable or a little less, and overall conversions were greater.

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Quinoxaline – Wikipedia,
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Product Details of 217192-22-8. 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. Compound: (4-(Pyridin-4-yl)phenyl)methanol, is researched, Molecular C12H11NO, CAS is 217192-22-8, about Linking [2]rotaxane wheels to create a new type of metal organic rotaxane framework.

Three new [2]rotaxanes with aromatic nitrogen donors appended to the crown ether wheel were synthesized by the combination of tetraarom. nitrogen group substituted dibenzo-24-crown-8 ether wheel (tetraarom. nitrogen group = 8-hydroxyquinoline, 3-pyridyl, 4-pyridyl) and a dicationic 1,2-bis(pyridinium)ethane axle and used as ligands to coordinate Cd(II) ions. One of these yields a new type of 2-periodic, metal organic rotaxane framework in which the wheel rather than the axle was used to link the metal nodes. The cadmium complexes and reactant precursor were characterized via x-ray determination

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Reference:
Quinoxaline – Wikipedia,
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