Month: April 2022

Name: Dichloro(1,5-cyclooctadiene)platinum(II). 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Cyclometalated Platinum(II) Complexes with Mesoionic Dibenzofuranyl-1,2,3-triazol-4-ylidene Ligands: Synthesis, Characterization and Photophysical Properties. Author is Soellner, Johannes; Strassner, Thomas.

Platinum(II) complexes with mesoionic C-C*-cyclometalating 1,2,3-triazolylidene ligands are highly efficient phosphorescent emitters. Herein we report a series of this type bearing dibenzofuranyl-substituted carbenes along with different β-diketonate auxiliary ligands. They show luminescence in the green region of the visible spectrum and quantum yields of up to 78% at room temperature The proposed mol. structures were verified by NMR spectroscopy and x-ray diffraction experiments which prove the formation of the mesoionic carbene. Addnl., DFT calculations and cyclic voltammetry measurements were used to rationalize the observed photophys. properties of the reported complexes.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Dihydropyridines. VII. Reactions of symmetrically alkylated 3,5-dicyanopyridines with sodium borohydride》. Authors are Kuthan, J.; Janeckova, E..The article about the compound:Pyridine-3,5-dicarbonitrilecas:1195-58-0,SMILESS:N#CC1=CC(C#N)=CN=C1).Electric Literature of C7H3N3. Through the article, more information about this compound (cas:1195-58-0) is conveyed.

cf. ibid. 1495; CA 60, 6817d. NaBH4 reduction of 3,5-dicyanopyridines I-VI gave 3,5-dicyano-1,2- and 1,4-dihydropyridines VII-XVII. I and LiAlH4 gave a mixture of VII and VIII which was separated by chromatography. Two procedures were used in the reduction of I-VI: Method A. EtOH (0.2 ml.) was added to a mixture of 38 mg. NaBH4 and 0.001 mole ground I-VI, and the precipitated product washed with 2.5 ml. cold H2O. Method B. NaBH4 (150 mg.) was added to a mixture of 0.002 mole I-VI and 5 ml. EtOH, the solution diluted with H2O to ∼80 ml. after several hrs., and the precipitated filtered off (starting compound, method, product, % yield, and m.p. given): I, B, VIII, 62, 205-6° (dilute EtOH); I, A, VII, 188-9° (Me2CO-cyclohexane) (VIII was also obtained); II, A, IX, 50, 214-15° (dilute EtOH); III, A, X + XI (92:8), 44, 154-72° (mixture); IV, B, XII, 89, 232-3° (MeOH); V, B, XIV + XV (71:29), 69, 138-69° (mixture); VI, -, XVI + XVII (86:14), 77, 108-22° (mixture). Similar results were obtained by reduction of I-IV with LiAlH4. Oxidation of 1.73 g. 3,5-dicyano-2-methyl-4-ethyl-1,2-dihydropyridine in 70 ml. EtOH with Ag2O from 7 g. AgNO3 gave 91% 3,5-dicyano-2-methyl-4-ethylpyridine (XVIII), m. 68-8.5°, sublimed 55-60°/0.4 mm. Treatment of 1.28 g. XVIII with MeMgI prepared from 750 mg. Mg and 1.9 ml. MeI gave 61% XVII, m. 101-2° (dilute acetone), which was oxidized with MnO2 to VI, m. 70-1°.

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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.Lv, Xin; Bao, Weiliang researched the compound: 1-(4-Chlorophenyl)pyrrolidin-2-one( cas:7661-33-8 ).Recommanded Product: 7661-33-8.They published the article 《A β-Keto Ester as a Novel, Efficient, and Versatile Ligand for Copper(I)-Catalyzed C-N, C-O, and C-S Coupling Reactions》 about this compound( cas:7661-33-8 ) in Journal of Organic Chemistry. Keywords: arylamide preparation copper catalyzed coupling keto ester ligand; arylimidazole preparation copper catalyzed coupling keto ester ligand; aryl ether preparation copper catalyzed coupling keto ester ligand; copper catalyzed coupling keto ester ligand aryl thioether preparation. We’ll tell you more about this compound (cas:7661-33-8).

Employing Et 2-oxocyclohexanecarboxylate as a novel, efficient, and versatile ligand, the copper-catalyzed coupling reactions of various N/O/S nucleophilic reagents with aryl halides could be successfully carried out under mild conditions. A variety of products including N-arylamides, N-arylimidazoles, aryl ethers, and aryl thioethers were synthesized in good to excellent yields.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 3-Bromo-4-chloronitrobenzene, is researched, Molecular C6H3BrClNO2, CAS is 16588-26-4, about 4-Methoxy-N-[2-(trifluoromethyl)biphenyl-4-ylcarbamoyl]nicotinamide: A Potent and Selective Agonist of S1P1, the main research direction is methoxytrifluoromethyl biphenylyl carbamoyl nicotinamide analog preparation S1P1 agonist; Sphingosine-1-phosphate-1 receptor agonist; immunosuppression; multiple sclerosis; peripheral lymphocyte count.Synthetic Route of C6H3BrClNO2.

The sphingosine-1-phosphate-1 receptor (S1P1) and its endogenous ligand sphingosine-1-phosphate (S1P) cooperatively regulate lymphocyte trafficking from the lymphatic system. Herein, we disclose 4-methoxy-N-[2-(trifluoromethyl)biphenyl-4-ylcarbamoyl]nicotinamide (8), an uncommon example of a synthetic S1P1 agonist lacking a polar headgroup, which is shown to effect dramatic reduction of circulating lymphocytes (POC = -78%) in rat 24 h after a single oral dose (1 mg/kg). The excellent potency that 8 exhibits toward S1P1 (EC50 = 0.035 μM, 96% efficacy) and the >100-fold selectivity that it displays against receptor subtypes S1P2-5 suggest that it may serve as a valuable tool to understand the clin. relevance of selective S1P1 agonism.

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Recommanded Product: 7661-33-8. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 1-(4-Chlorophenyl)pyrrolidin-2-one, is researched, Molecular C10H10ClNO, CAS is 7661-33-8, about Condensation of aniline, o-phenylenediamine, and their derivatives with lactones. Author is Shazhenov, A. A.; Kadyrov, Ch. Sh.; Kurbanov, P..

Heating equimol. amounts of RNH2 and γ-butyrolactone at 130-305° gave 2-pyrrolidinones (I) (R and % yield given): Ph, 80; m-MeC6H4, 75; p-MeC6H4, 78; m-BrC6H4, 60; α-naphthyl, 14; m-CF3C6H4, 19; p-ClC6H4, 77; β-naphthyl, 62. Boiling a mixture of equimol. amounts of substituted aromatic o-diamines and γ- or β-lactones in xylene gave the following 3-(2-benzimidazolyl)-1-alkanoles (II) (R1, R2, X, and % yield given): H, CCl3, CH2, 61; Cl, CCl3, CH2, 85; Me, CCl3, CH2, 87; H, H, (CH2)2, 80; Cl, H, (CH2)2, 24; Me, H, (CH2)2, 31; H, Me, (CH2)2, 78; H, Pr, (CH2)2, 78; Cl, Pr, (CH2)2, 7; Me, Pr, (CH2)2, 13; H, Bu, (CH2)2, 75; Cl, Bu, (CH2)2, 17; H, C7H15, (CH2)2, 66; H, H, CHOHCMe2, 50; H, H, CHAcCH2, 40; Cl, H, CHAcCH2, 16. Uv data for II are given.

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He, Hongming; Sun, Fuxing; Zhao, Nian; Yuan, Rongrong; Zhu, Guangshan published the article 《Three novel zinc(II) metal-organic frameworks based on three tetrazolate ligands: synthesis, structures and photoluminescence》. Keywords: luminescence zinc phenylenetetrazole pyridinetetrazole imidazoletetrazole metal organic framework; crystal structure zinc phenylenetetrazole pyridinetetrazole imidazoletetrazole metal organic framework; mol structure zinc phenylenetetrazole pyridinetetrazole imidazoletetrazole metal organic framework; electrochem zinc phenylenetetrazole pyridinetetrazole imidazoletetrazole metal organic framework.They researched the compound: Pyridine-3,5-dicarbonitrile( cas:1195-58-0 ).COA of Formula: C7H3N3. 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:1195-58-0) here.

Three metal-organic frameworks (MOFs), [Zn(BPT)H2O] (JUC-121), [Zn5(IBT)6]·8[H2NMe2]·DMA (JUC-122) and [Zn(TPD)(H2O)2]·0.5H2O (JUC-123) (JUC = Jilin University, China), H2BPT = (5-bromo-1,3-phenylene)bis(tetrazole), H3IBT = 4,5-bis(tetrazol-5-yl)imidazole and H2TPD = 3,5-di(tetrazol-5-yl)pyridine, were obtained by the reactions of Zn(NO3)2·6H2O and three tetrazolate ligands, which were characterized by single crystal x-ray diffraction, thermal gravimetric analyses (TGA), FTIR spectra (FTIR), elemental anal. (CHN) and powder X-ray diffraction (PXRD). From the crystal structures of these complexes and the coordination modes of the ligands, the authors can see that the tetrazolate ligands have multi-connectivity abilities to obtain intriguing varieties of mol. architectures. JUC-121 displays a three-dimensional (3D) network with the point symbol (4·65)2(42·84)(64·82). JUC-122 shows a two-dimensional (2D) framework with the point symbol (243)2(24)9 and JUC-123 has a 2-dimensional bimodal (3, 3)-connected net with the point symbol (4·82). The solid-state fluorescent spectra of JUC-121, JUC-122, JUC-123 and the free ligands were measured at room temperature

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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: 12080-32-9, is researched, Molecular C8H12Cl2Pt, about Efficient one-pot synthesis of diphenyl(pyrazin-2-yl)phosphine and its AgI, AuI and PtII complexes, the main research direction is diphenyl pyrazinylphosphine preparation crystal mol structure silver gold platinum; crystal mol structure pyrazinylphosphine silver gold platinum complex.Category: alcohols-buliding-blocks.

A convenient one-pot synthesis of diphenyl(pyrazin-2-yl)phosphine has been developed based on reaction of Ph3P with metallic lithium followed by treatment of the Ph2PLi formed with 2-chloropyrazine. The AgI, AuI and PtII chloride complexes derived from this phosphine have been synthesized and structurally characterized.

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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 Synthesis and structure of thienyl Fischer carbene complexes of PtII for application in alkyne hydrosilylation, published in 2021, which mentions a compound: 12080-32-9, Name is Dichloro(1,5-cyclooctadiene)platinum(II), Molecular C8H12Cl2Pt, Application of 12080-32-9.

Transmetalation of Group 6 thienylene Fischer carbene complexes to Pt(II) precursors yielded new examples of neutral Pt(II) bisethoxycarbene complexes with either 2-thienyl (T) or 5-thieno[2,3-b]thienylene (TT) carbene substituents. The use of analogous aminocarbene group 6 precursors proceeded to give isomeric Pt(II) product mixtures where the resultant bisaminocarbene ligands displayed different orientations due to restricted rotation around the Pt-aminocarbene bond caused by the sterically demanding TT substituents. The well-defined Pt(II) ethoxycarbene complexes were screened as catalyst precursors in the benchmark hydrosilylation reaction employing phenylacetylene and triethylsilane substrates. Marked selectivity for the β-E isomer (E)-triethyl(styryl)silane was observed, and the (pre)catalysts proved recyclable, active in solvent-free reactions, and displaying a high alkyne functional group tolerance.

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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 Aromatic bromination in concentrated nitric acid, published in 2014, which mentions a compound: 16588-26-4, Name is 3-Bromo-4-chloronitrobenzene, Molecular C6H3BrClNO2, Synthetic Route of C6H3BrClNO2.

Action of bromine in concentrated nitric acid allows carrying out mono- and polybromination of moderately deactivated aromatic compounds 4-Chloronitrobenzene and isophthalic acid turnes into 3-bromo-4-chloronitrobenzene and 5-bromoisophthalic acid at reaction with bromine in concentrated nitric acid at 20°C whereas in absence of bromine in the same conditions 4-chloro-1,3-dinitrobenzene and 5-nitroisophthalic acid are formed accordingly. Presence of bromine in concentrated nitric acid changes nitrating capacity to brominating one. Terephthalic acid and phthalic anhydride at heating with bromine in concentrated nitric acid can be transformed to appropriating tetrabromo substituted compounds

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Recommanded Product: Dichloro(1,5-cyclooctadiene)platinum(II). 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about Encapsulation of FePt and FePt3 alloys inside carbon-foam materials. Author is Boi, Filippo S.; Wang, Jiayu; He, Yi; Wen, Jiqiu; Wang, Shanling; Zhang, Xi; Yu, Tian; Shi, Lin; Ma, Qiuyan; Lan, Mu; Lei, Li; Xiang, Gang.

We demonstrate an advanced chem. vapor deposition (CVD) approach in which the addition of Pt-containing hydrocarbons to ferrocene allows the nucleation of a novel carbon-foam material completely filled with elemental Fe and Pt crystal-phases. These phases are then found to alloy into tetragonal FePt and cubic FePt3 in specific annealing conditions. A dependence of the FePt nucleation on the Ar/H2 flow rate is reported. In addition, high pressure (5 GPa) experiments are found to favor the formation of a single FePt3 encapsulated phase together with the nucleation of C-O rich carbon layers in the foam surface.

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