Category: alcohols-buliding-blocks

Sayadi, Mohsen; Sabounchei, Seyyed Javad; Sedghi, Asieh; Bayat, Mehdi; Hosseinzadeh, Leila; Gable, Robert W. published an article about the compound: Dichloro(1,5-cyclooctadiene)platinum(II)( cas:12080-32-9,SMILESS:C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-] ).Reference of Dichloro(1,5-cyclooctadiene)platinum(II). Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:12080-32-9) through the article.

The new phosphonium salt, the C,C-chelating phosphorus ylide ligand, (MeOC6H5C(O)CH:PPh2(CH2)2PPh2:CHC(O)C6H5OMe), and its Pd(II) and Pt(II) complexes were synthesized and the cytotoxic activity of the synthesized complexes against three human cancer cell lines, including HeLa (Human cervix cancer cell line), KB (human oral cancer cell line) and U87 MG (human glioblastoma cell line) were evaluated using an MTT assay. The new compounds were identified and characterized using multinuclear (1H, 13C and 31P) NMR, IR spectroscopy, elemental anal., and through UV absorption and fluorescence emission spectra. Also, the crystal structure of the phosphorus ylide ligand was determined by single-crystal x-ray diffraction anal. According to the obtained results from the MTT assay, the Pd(II) and Pt(II) complexes demonstrated a higher cytotoxic activity against KB human oral cancer cells in comparison with other cell lines, rendering these compounds into suitable candidates for further anti-oral cancer studies. Furthermore, a theor. study on structure and nature of the M-C bonding between the Y ligand (ylide) and MCl2 fragment in the [YMCl2] (M = Pd, Pt and Y = (MeOC6H5C(O)CH:PPh2(CH2)2PPh2:CHC(O)C6H5OMe)) complexes are reported via NBO and energy-decomposition anal. (EDA).

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Quality Control of Pyridine-3,5-dicarbonitrile. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about General and Mild Nickel-Catalyzed Cyanation of Aryl/Heteroaryl Chlorides with Zn(CN)2: Key Roles of DMAP. Author is Zhang, Xingjie; Xia, Aiyou; Chen, Haoyi; Liu, Yuanhong.

A new and general nickel-catalyzed cyanation of hetero(aryl) chlorides using less toxic Zn(CN)2 as the cyanide source has been developed. The reaction relies on the use of inexpensive NiCl2·6H2O/dppf/Zn as the catalytic system and DMAP as the additive, allowing the cyanation to occur under mild reaction conditions (50-80 °C) with wide functional group tolerance. DMAP was found to be crucial for successful transformation, and the reaction likely proceeds via a Ni(0)/Ni(II) catalysis based on mechanistic studies. The method was also successfully extended to aryl bromides and aryl iodides.

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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: 7661-33-8, is researched, SMILESS is O=C1N(C2=CC=C(Cl)C=C2)CCC1, Molecular C10H10ClNOJournal, Organic Chemistry Frontiers called Selective cleavage and reconstruction of C-N/C-C bonds in saturated cyclic amines: tunable synthesis of lactams and functionalized acyclic amines, Author is He, Yan; Yang, Jintao; Zhang, Xinying; Fan, Xuesen, the main research direction is saturated cyclic amine cleavage functionalization tandem reaction; arylpyrrolidinone preparation; tetramethylpiperidinyl arylformamido alkanoate preparation.Formula: C10H10ClNO.

Selective cleavage and functionalization of C-N/C-C bonds in saturated cyclic amines under the promotion of oxoammonium salt and tert-Bu hydroperoxide in the presence of different additives was developed. To be specific, cascade cleavage and reconstruction of C-N and C-C bonds took place under acidic conditions to provide pyrrolidin-2-ones. Under basic conditions, on the other hand, selective cleavage and functionalization of C-C bonds occurred to afford multi-functionalized acyclic N-formal amines. In addition, studies for revealing the intriguing reaction mechanisms was also been performed.

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Name: Dichloro(1,5-cyclooctadiene)platinum(II). 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: Dichloro(1,5-cyclooctadiene)platinum(II), is researched, Molecular C8H12Cl2Pt, CAS is 12080-32-9, about C-C* Platinum(II) Complexes with Electron-Withdrawing Groups and Beneficial Auxiliary Ligands: Efficient Blue Phosphorescent Emission.

Cyclometalated arylimidazolylidene platinum complexes with diketonate and dipyrazolylborate auxiliary ligands were prepared and examined for photoluminescence and photophys. properties. The combination of strong electron-withdrawing groups in cyclometalated N-heterocyclic carbene ligands (C-C*) with known beneficial auxiliary ligands in phosphorescent platinum(II) complexes leads to efficient light-to-deep-blue emission with quantum yields of up to 92%. All compounds were characterized and investigated regarding their photophys., electrochem., and thermal properties, and three complexes could addnl. be characterized by solid-state structures. D. functional theory calculations (PBE0/6-311G* with dispersion correction) are reported.

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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: Pyridine-3,5-dicarbonitrile, is researched, Molecular C7H3N3, CAS is 1195-58-0, about Vapor-phase oxidation and oxidative ammonolysis of some alkylpyridines on a vanadium-iron catalyst, the main research direction is alkylpyridine oxidation ammonolysis iron vanadium catalyst; cyanopyridine.Recommanded Product: Pyridine-3,5-dicarbonitrile.

Optimum conditions were determined for gas-phase oxidation and oxidative ammonolysis for each of 4 alkylpyridines (2- and 3-picoline, 2-methyl-5-ethylpyridine, 3,5-lutidine) over the catalyst 2V2O5·Fe2O3 in the presence or absence of H2O. At best, overall selectivity for oxygen- and nitrogen-containing derivatives (e.g., cyanopyridines) of pyridine reached 80-90%.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Dichloro(1,5-cyclooctadiene)platinum(II)(SMILESS: C1=CCC/C=CCC/1.[Pt+2].[Cl-].[Cl-],cas:12080-32-9) is researched.SDS of cas: 1798-99-8. The article 《Understanding Doping Effects on Electronic Structures of Gold Superatoms: A Case Study of Diphosphine-Protected M@Au12 (M = Au, Pt, Ir)》 in relation to this compound, is published in Inorganic Chemistry. Let’s take a look at the latest research on this compound (cas:12080-32-9).

Dopants into ligand-protected Au superatoms have been hitherto limited to group X-XII elements (Pt, Pd, Ag, Cu, Hg, and Cd). To expand the scope of the dopants to the group IX elements, the authors synthesized unprecedented [IrAu12(dppe)5Cl2]+ [IrAu12; dppe = 1,2-bis(diphenylphosphino)ethane] and [PtAu12(dppe)5Cl2]2+ (PtAu12) and compared their electronic structures with that of [Au13(dppe)5Cl2]3+ (Au13). Single-crystal x-ray diffractometry, 31P{1H} NMR, and Ir L3-edge extended X-ray absorption fine structure anal. of IrAu12 revealed that the single Ir atom is located at the center of the icosahedral IrAu12 core. Electrochem. anal. demonstrated that the energy levels of the highest occupied MOs are upshifted in the order of Au13 < PtAu12 < IrAu12. This trend was qual. explained in such a manner that the jellium core potential at the central position becomes shallower by replacing Au+ with Pt0 and further with Ir-. IrAu12 underwent reversible redox reactions between the charge states of 1+ and 2+. The gradual increase of the energy gap between the HOMO and LUMO in the order of Au13 < PtAu12 < IrAu12 was observed by electrochem. measurement and optical spectroscopy. This study provides a simple guiding principle to tune the electronic structures of heterometal-doped superatoms. The orbital energies of [IrAu12(dppe)5Cl2]+ (IrAu12) and [PtAu12(dppe)5Cl2]2+ (PtAu12) were compared with those of [Au13(dppe)5Cl2]3+ (Au13) by electrochem. anal. The superat. orbitals were shifted up in the order of IrAu12 > PtAu12 > Au13. The result was explained by the upshift of the bottom of the effective potential due to different formal charge states of the dopants. Whereas Au was incorporated as Au+, Ir and Pt were incorporated as Ir- and Pt0, resp.

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The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Nucleophilic substitution of aromatic chlorine in diazonium ions by bromide ions》. Authors are Lamm, Bo.The article about the compound:3-Bromo-4-chloronitrobenzenecas:16588-26-4,SMILESS:BrC1=C(C=CC(=C1)[N+](=O)[O-])Cl).Related Products of 16588-26-4. Through the article, more information about this compound (cas:16588-26-4) is conveyed.

To determine why a Cl atom in a suitably substituted diazonium ion should not be replaced by a Br- ion, the reaction of 2-chloro-5-nitrobenzenediazonium ion in an HBr-AcOH-H2O medium at 25° was studied. It was found that some of the aromatic Cl is “”frozen in”” and no quant. conversion of aromatic Cl to Br can occur; the reverse reactions are considerably more rapid than the forward ones, so that a small amount of Cl- ions generated in the exchange reaction produces an equilibrium containing comparable amounts of each, despite the large excess of HBr; and the equilibrium is continually being disturbed by the side-reactions, which cannot be suppressed by increasing the Br- ion concentration

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Safety of 3-Bromo-4-chloronitrobenzene. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 3-Bromo-4-chloronitrobenzene, is researched, Molecular C6H3BrClNO2, CAS is 16588-26-4, about Optimization of 5-(2,6-dichlorophenyl)-3-hydroxy-2-mercaptocyclohex-2-enones as potent inhibitors of human lactate dehydrogenase. Author is Labadie, Sharada; Dragovich, Peter S.; Chen, Jinhua; Fauber, Benjamin P.; Boggs, Jason; Corson, Laura B.; Ding, Charles Z.; Eigenbrot, Charles; Ge, HongXiu; Ho, Qunh; Lai, Kwong Wah; Ma, Shuguang; Malek, Shiva; Peterson, David; Purkey, Hans E.; Robarge, Kirk; Salphati, Laurent; Sideris, Steven; Ultsch, Mark; VanderPorten, Erica; Wei, BinQing; Xu, Qing; Yen, Ivana; Yue, Qin; Zhang, Huihui; Zhang, Xuying; Zhou, Aihe.

Optimization of 5-(2,6-dichlorophenyl)-3-hydroxy-2-mercaptocyclohex-2-enone using structure-based design strategies resulted in inhibitors with considerable improvement in biochem. potency against human lactate dehydrogenase A (LDHA). These potent inhibitors were typically selective for LDHA over LDHB isoform (4-10 fold) and other structurally related malate dehydrogenases, MDH1 and MDH2 (>500 fold). An X-ray crystal structure of enzymically most potent mol. bound to LDHA revealed two addnl. interactions associated with enhanced biochem. potency.

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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 Dynamics of the efficient cyclometalation of the undercoordinated organoplatinum complex [Pt(COD)(neoPh)]+ (neoPh = 2-methyl-2-phenylpropyl), the main research direction is platinum metallacycle cyclooctadiene complex preparation CH activation neophyl ligand; crystal structure platinum metallacycle cyclooctadiene complex; mol structure platinum metallacycle cyclooctadiene complex; cyclometalation mechanism platinum neophyl cyclooctadiene complex potential energy surface.Product Details of 12080-32-9.

Reaction of the organoplatinum complex [Pt(COD)(neoPh)Cl] (neoPh = (2-methyl-2-phenylpropyl)) with Ag(PF6) leads to the undercoordinated cationic complex [Pt(COD)(neoPh)]+ which rapidly and quant. rearranges to the complex [Pt(COD)(κ2-neoPh)] through intramol. cyclometalation. Detailed NMR spectroscopy and single crystal XRD reveal a doubly metalated neoPh ligand. In line with exptl. observations, ab initio mol. dynamics simulations confirm that the cyclometalation reaction is exothermic and has a relatively low free energy barrier. In addition, the simulations provide detailed insight into the reaction mechanism, showing that an intermediate species exists in which the newly formed Pt-C bond coexists with a covalent Pt-H bond involving the leaving proton. The latter is found to eventually transfer onto an acetone solvent mol.

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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: Pyridine-3,5-dicarbonitrile(SMILESS: N#CC1=CC(C#N)=CN=C1,cas:1195-58-0) is researched.Reference of (11bR)-N,N-Bis[(1R)-1-phenylethyl]dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-amine. The article 《A study of solvent effect on photochemically induced reactions between pyridinedicarbonitriles and alkenes: an easy approach to the synthesis of cyclopenta[b or c]pyridines》 in relation to this compound, is published in Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry. Let’s take a look at the latest research on this compound (cas:1195-58-0).

Photochem. induced reactions of pyridinedicarbonitriles and alkenes showed an interesting dependence on solvent polarity. In non-polar solvents ipso-substitution of the cyano groups in positions α or γ to the heterocyclic nitrogen occurred to a larger extent, while in polar solvents the reaction provided a path to the formation of a new ring between the carbon atom of one of the cyano groups and a ring position, forming a cyclopenta[b]pyridine or cyclopenta[c]pyridine derivatives Studies on the multiplicity of the excited state controlling the reaction showed that the singlet state was involved in the ipso-substitution, while the triplet state controlled the formation of the pyridine. An explanation for the solvent effect was given in terms of shift of the excited states with the solvent used. Theor. calculations justified the position of the cyclization, although no correlation was found for the regioisomers ratio. This reaction represented an effective entry to the biol. interesting pyrindine systems.

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