Author: tianli

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 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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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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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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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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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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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 3-Bromo-4-chloronitrobenzene(SMILESS: BrC1=C(C=CC(=C1)[N+](=O)[O-])Cl,cas:16588-26-4) is researched.Product Details of 1315-06-6. The article 《Copper(I)-induced bromine-hydrogen exchange of 2,3-dibromoanilines》 in relation to this compound, is published in Acta Chemica Scandinavica, Series B: Organic Chemistry and Biochemistry. Let’s take a look at the latest research on this compound (cas:16588-26-4).

The Cu(I)-induced Br/H exchange reaction of 2,3-dibromoaniline and 5-substituted 2,3-dibromoanilines in the 2-position has been kinetically studied in aqueous HOAc-HCl medium at 90°. The dehalogenation reaction is 2nd order, 1st in both substrate and Cu+, and may be interpreted as a reductive substitution, composed of two 1-electron steps. The 2,3-dibromophenol was only qual. examined but gave similar results.

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SDS of cas: 12080-32-9. 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 Water’s Role in Polymorphic Platinum(II) Complexes.

Solvent plays a vital role in the recrystallization process and resulting crystallinity of materials. This role is of such importance that it can control the stability and utility of materials. In this work, the inclusion of a solvent in the crystalline lattice, specifically water, drastically affects the overall stability of two platinum polymorphs. [Pt(tpy)Cl]BF4 (tpy = 2,2′;6’2”-terpyridine) crystallizes in three forms, red (1R) and blue (1B) polymorphs and a yellow nonsolvated form (2). 1R is the more stable of the two polymorphs, whereas 1B loses crystallinity upon dehydration at ambient conditions resulting in the formation of 2. Close examination of the solid-state extended structures of the two polymorphs reveals that 1R has a lattice arrangement that is more conducive to stronger intermol. interactions compared to 1B, thereby promoting greater stability. In addition, these two polymorphs exhibit unique vapochromic responses when exposed to various solvents.

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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, Article, Chemical Communications (Cambridge, United Kingdom) called Interception of amide ylides with sulfonamides: synthesis of (E)-N-sulfonyl amidines catalyzed by Zn(OTf)2, Author is Chen, Jijun; Long, Wenhao; Fang, Shangwen; Yang, Yonggang; Wan, Xiaobing, the main research direction is sulfonyl amidine preparation diastereoselective crystal structure mol; sulfonamide amide intermol condensation zinc catalyst.Reference of 1-(4-Chlorophenyl)pyrrolidin-2-one.

An efficient method was reported for the synthesis of (E)-N-sulfonyl amidines such as I [R1 = H, Me, Ph, etc.; R2 = Me, Ph, 2-thienyl, etc.; R3 = Me, i-Pr, Ph, etc.; R1R3 = (CH2)2, (CH2)3; R2R3 = (CH2)4, (CH2)5, (CH2)2O(CH2)2, etc.; R4 = Ph, 4-MeC6H4, 2-naphthyl, etc.] in good yields with excellent stereoselectivity via Zn-catalyzed intermol. condensation reaction between sulfonamides and various amides. The wide substrate scope, exceptional functional group tolerance, operational simplicity and neutral reaction conditions made this mechanistically novel method well suited for preparing amidine compounds I.

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Application of 16588-26-4. 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: 3-Bromo-4-chloronitrobenzene, is researched, Molecular C6H3BrClNO2, CAS is 16588-26-4, about Cobalt-Catalyzed C-N Bond-Forming Reaction between Chloronitrobenzenes and Secondary Amines. Author is Toma, Gabriel; Yamaguchi, Ryohei.

Cyclic secondary amines react with mono- or dichloronitrobenzenes in the presence of a catalytic amount of cobalt(II) chloride. Phosphane ligands are beneficial for the reaction, although the bite-angle effect was not strong. The resulting nitro-substituted tertiary amines are important as bioactive compounds and can also be intermediates for the synthesis of substituted anilines. This work represents the first cobalt-catalyzed approach to C-N bond-forming reactions involving aromatic chlorides and cyclic secondary amines. The reaction is ortho- and para-selective, with meta-substituted halides being unreactive in this procedure.

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