Category: 87488-84-4

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-(2-Bromophenyl)-1H-pyrazole, is researched, Molecular C9H7BrN2, CAS is 87488-84-4, about Catalytic, Directed C-C Bond Functionalization of Styrenes, the main research direction is alkene dealkenylative alkenylation rhodium catalyst; allyl alc dealkenylation rhodium catalyst.Recommanded Product: 1-(2-Bromophenyl)-1H-pyrazole.

A method for catalytic conversion of C(aryl)-C(alkenyl) bonds in styrene derivatives R1-2-R2C6H3C(=CHR4)R3 (R1 = H, 4-Me, 3-Cl, 5-Me, etc.; R2 = 1-pyrazolyl, 2-pyridyl; R3 = H, Me, Ph, 4-methoxyphenyl, etc.; R4 = H, Ph, 4-chlorophenyl) to new C-C bonds is developed. In the presence of a rhodium catalyst, the alkenyl groups of styrenes bearing a pyrazolyl directing group were efficiently converted to other carbon substituents upon reacting with various alkenes RCH=CH2 (R = 4-methylhex-1-en-1-yl, 2-cyclohexylethenyl, 2-phenylethenyl, etc.) and allyl alcs. R5CH(OH)CH=CH2(R5 = cyclohexyl, Me, Et, etc.). It is also indicated that the C-C bond cleavage proceeded via a hydrometalation/β-carbon elimination pathway.

This compound(1-(2-Bromophenyl)-1H-pyrazole)Recommanded Product: 1-(2-Bromophenyl)-1H-pyrazole was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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: 87488-84-4, is researched, Molecular C9H7BrN2, about Chemoselective and regiospecific formylation of 1-phenyl-1H-pyrazoles through the Duff reaction, the main research direction is phenylpyrazoles with hexamethylenetetramine Duff formylation.Electric Literature of C9H7BrN2.

The synthesis of formylated 1-phenyl-1H-pyrazole derivatives under the Duff reaction conditions was reported. The results indicated that 1-phenyl-1H-pyrazole systems containing electron-withdrawing and donating substituents at the Ph moiety react under the Duff reaction conditions to furnish formylated derivatives in good yields.

This compound(1-(2-Bromophenyl)-1H-pyrazole)Electric Literature of C9H7BrN2 was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, Non-U.S. Gov’t, Current Organic Synthesis called Comparison of Conventional and Microwave Synthesis of Phenyl-1H-pyrazoles and Phenyl-1H-pyrazoles-4-carboxylic Acid Derivatives, Author is Machado, Antonio S.; de Carvalho, Flavio S.; Mouraa, Rayssa B. P.; Chaves, Lorrayne S.; Liao, Luciano M.; Sanz, German; Vaz, Boniek G.; Rodrigues, Marcella F.; Romao, Wanderson; Menegatti, Ricardo; Silva, Gloria N. S., which mentions a compound: 87488-84-4, SMILESS is BrC1=CC=CC=C1N2N=CC=C2, Molecular C9H7BrN2, Application of 87488-84-4.

The purpose of this study was the optimization of the conventional synthesis of the pyrazole rings I (R1 = H) and the oxidation of phenyl-1H-pyrazole-4-carbaldehydes I (R = H, 2-Cl, 3-Br, 4-CF3, etc.; R1 = CHO) to phenyl-1H-pyrazole-4-carboxylic acids I (R1 = COOH) through Microwave- Assisted Organic Synthesis (MAOS). A comparison between conventional synthesis and conventional synthesis with microwave heating using the synthesis method of pyrazole ring described by Finar and Godfrey and for the oxidation of phenyl-1H-pyrazole-4-carbaldehyde, and the method described by Shriner and Kleiderer was used. MAOS reduces the reaction time to obtain all compounds compared to conventional heating. At a temperature of 60°C, 5 min of reaction time, and power of 50 W, the yield of phenyl-1H-pyrazoles I (R1 = H) was in the range of 91 – 98% using MAOS, which is better than conventional heating (72 – 90%, 75°C, 2 h). An improvement in the yield for the oxidation reaction was also achieved with MAOS. The compounds I (R1 = COOH) were obtained with yields ranging from 62 – 92% (80°C, 2 min, 150 W), while the yields with conventional heating were in the range of 48 – 85% (80°C, 1 h). The 26 compounds I were achieved through an easy work-up procedure with no chromatog. separation

《Comparison of Conventional and Microwave Synthesis of Phenyl-1H-pyrazoles and Phenyl-1H-pyrazoles-4-carboxylic Acid Derivatives》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(1-(2-Bromophenyl)-1H-pyrazole)Application of 87488-84-4.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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 Homoleptic Nickel(II) Complexes of Redox-Tunable Pincer-type Ligands, published in 2014-10-06, which mentions a compound: 87488-84-4, Name is 1-(2-Bromophenyl)-1H-pyrazole, Molecular C9H7BrN2, Product Details of 87488-84-4.

Different synthetic methods were developed to prepare eight new redox-active pincer-type ligands, H(X,Y), that have pyrazol-1-yl flanking donors attached to an ortho-position of each ring of a diarylamine anchor and that have different groups, X and Y, at the para-aryl positions. Together with four previously known H(X,Y) ligands, 12 Ni(X,Y)2 complexes were prepared in high yields by a simple one-pot reaction. Six of the 12 derivatives were characterized by single-crystal x-ray diffraction, which showed tetragonally distorted hexacoordinate nickel(II) centers. The nickel(II) complexes exhibit two quasi-reversible one-electron oxidation waves in their cyclic voltammograms, with half-wave potentials that varied over a remarkable 700 mV range with the average of the Hammett σp parameters of the para-aryl X, Y groups. The one- and two-electron oxidized derivatives [Ni(Me,Me)2](BF4)n (n = 1, 2) were prepared synthetically, were characterized by X-band EPR, electronic spectroscopy, and single-crystal x-ray diffraction (for n = 2), and were studied computationally by DFT methods. The dioxidized complex, [Ni(Me,Me)2](BF4)2, is an S = 2 species, with nickel(II) bound to two ligand radicals. The mono-oxidized complex [Ni(Me,Me)2](BF4), prepared by comproportionation, is best described as nickel(II) with one ligand centered radical. Neither the mono- nor the dioxidized derivative shows any substantial electronic coupling between the metal and their bound ligand radicals because of the orthogonal nature of their magnetic orbitals. However, weak electronic communication occurs between ligands in the mono-oxidized complex as evident from the intervalence charge transfer (IVCT) transition found in the near-IR absorption spectrum. Band shape anal. of the IVCT transition allowed comparisons of the strength of the electronic interaction with that in the related, previously known, Robin-Day class II mixed valence complex, [Ga(Me,Me)2]2+.

Different reactions of this compound(1-(2-Bromophenyl)-1H-pyrazole)Product Details of 87488-84-4 require different conditions, so the reaction conditions are very important.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Formula: C9H7BrN2. 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: 1-(2-Bromophenyl)-1H-pyrazole, is researched, Molecular C9H7BrN2, CAS is 87488-84-4, about Designing a heterogeneous Pd(II)-NHC-based C-H activation catalyst on a self-supported coordination polymer platform. Author is Mondal, Moumita; Joji, Jinu; Choudhury, Joyanta.

The authors report a single-site, heterogeneous Pd(II)-NHC-based oxidative C-H activation catalyst, designed on a self-supported coordination polymer platform. The system was applied successfully for selective arene C-H monohalogenation reactions affording a good degree of efficiency and reusability. Control experiments suggested that the Ru(II)-terpyridine-based coordination network scaffolding the covalently attached Pd(II)-NHC catalytic centers was highly robust under oxidizing conditions and rendered superior activity than the homogeneous counterpart.

After consulting a lot of data, we found that this compound(87488-84-4)Formula: C9H7BrN2 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Maity, Ayan; Anderson, Bryce Lane; Deligonul, Nihal; Gray, Thomas G. published an article about the compound: 1-(2-Bromophenyl)-1H-pyrazole( cas:87488-84-4,SMILESS:BrC1=CC=CC=C1N2N=CC=C2 ).SDS of cas: 87488-84-4. 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:87488-84-4) through the article.

Cyclometalated iridium(III) complexes have been prepared in high yields from base-assisted transmetalation reactions of cis-bis(aquo)iridium(III) complexes with boronated aromatic proligands. Reactions proceed at room temperature Potassium hydroxide and potassium phosphate are effective supporting bases. Kinetic, meridional isomers are isolated because of the mildness of the new technique. Syntheses are faster with KOH, but the gentler base K3PO4 broadens the reaction’s scope. Complexes of chelated ketone, aldehyde, and alc. complexes are reported that bind iridium through formally neutral oxygen and formally anionic carbon. The new complexes luminesce with microsecond-scale(coating) lifetimes at 77 K and nanosecond-scale lifetimes at room temperature; emission quenches in air. Two complexes, an aldehyde and its reduced (alc.) derivative, are crystallog. characterized. Their bonding is examined with d.-functional theory calculations Time-dependent computations suggest that the Franck-Condon triplet states of these complexes have mixed orbital parentage, arising from one-particle transitions that mingle through CI.

After consulting a lot of data, we found that this compound(87488-84-4)SDS of cas: 87488-84-4 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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: 87488-84-4, is researched, Molecular C9H7BrN2, about Cyclometalated complexes of platinum(II): homoleptic compounds with aromatic C,N ligands, the main research direction is cyclometalated platinum NMR UV voltammetry; lithiopyrazole cyclocondensation platinum chloride; lithiopyridine cyclocondensation platinum chloride; reduction electrochem cyclometalated platinum.Recommanded Product: 1-(2-Bromophenyl)-1H-pyrazole.

The synthesis of five new homoleptic bis(cyclometalated) Pt(II) complexes, e.g., cis-bis(2-phenylpyridinato)platinum (I), cis-bis[2-(2-thienyl)pyridinato]platinum (II), and cis-bis[1-(2-thienyl)pyrazolato]platinum (III), from trans-PtCl2(SEt2)2 and the lithiated ligands at low temperature is described. All compounds are air-stable, soluble in many organic solvents, and photoreactive in solution under irradiation with visible light. The strong low-energy bands in the electronic spectra in the range from 400 to 450 nm are assigned to metal to ligand charge-transfer (MLCT) transitions from a Pt(5d) orbital to an empty π* orbital of the ligands. Most spectra show a weak absorption superimposed on the low-energy side of the strong MLCT band. This weak absorption is attributed to a singlet-triplet transition of the same type as the strong band. The complexes can be reduced electrochem. in reversible one-electron steps. Oxidation occurs also, but in a completely irreversible manner.

Compounds in my other articles are similar to this one(1-(2-Bromophenyl)-1H-pyrazole)Recommanded Product: 1-(2-Bromophenyl)-1H-pyrazole, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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: 87488-84-4, is researched, Molecular C9H7BrN2, about Synthesis of pyrrolo[1,2-a]quinolines and ullazines by visible light mediated one- and twofold annulation of N-arylpyrroles with arylalkynes, the main research direction is pyrroloquinoline ullazine preparation; photochem annulation arylpyrrole aryl alkyne.Safety of 1-(2-Bromophenyl)-1H-pyrazole.

1-(2-Bromophenyl)-1H-pyrrole and 1-(2,6-dibromophenyl)-1H-pyrrole react in the presence of catalytic amounts of rhodamine 6G (Rh-6G) and N,N-diisopropylethylamine (DIPEA) under blue light irradiation with aromatic alkynes and subsequently cyclize intramolecularly to form pyrrolo[1,2-a]quinoline and ullazines. The reactions proceed at room temperature, avoid transition metal catalysts, and provide the target compounds in one pot in moderate to good yields. Mechanistic investigations suggest that the photo excited Rh-6G is reduced by DIPEA to form the corresponding radical anion Rh-6G•-, which is again excited by 455 nm light. The excited radical anion of Rh-6G donates an electron to the aryl bromide giving an aryl radical that is trapped by aromatic alkynes. The intermediate vinyl radical cyclizes intramolecularly and yields the product after rearomatization.

This literature about this compound(87488-84-4)Safety of 1-(2-Bromophenyl)-1H-pyrazolehas given us a lot of inspiration, and I hope that the research on this compound(1-(2-Bromophenyl)-1H-pyrazole) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Safety of 1-(2-Bromophenyl)-1H-pyrazole. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-(2-Bromophenyl)-1H-pyrazole, is researched, Molecular C9H7BrN2, CAS is 87488-84-4, about Sodium Halides as Halogenating Reagents: Rhodium(III)-Catalyzed Versatile and Practical Halogenation of Aryl Compounds. Author is Zhang, Panpan; Hong, Liang; Li, Guofeng; Wang, Rui.

We report a concise, versatile and practical method for the ortho-chlorination, ortho-bromination and ortho-iodination of aryl compounds The significant advantage of this transformation is the creation of the carbon-halogen bond by use of readily available and cheap halide salts as formal nucleophilic halogenating reagents under mild reaction conditions.

This literature about this compound(87488-84-4)Safety of 1-(2-Bromophenyl)-1H-pyrazolehas given us a lot of inspiration, and I hope that the research on this compound(1-(2-Bromophenyl)-1H-pyrazole) can be further advanced. Maybe we can get more compounds in a similar way.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

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: 87488-84-4, is researched, SMILESS is BrC1=CC=CC=C1N2N=CC=C2, Molecular C9H7BrN2Journal, Article, Angewandte Chemie, International Edition called Cobalt(III)-Catalyzed Aryl and Alkenyl C-H Aminocarbonylation with Isocyanates and Acyl Azides, Author is Li, Jie; Ackermann, Lutz, the main research direction is arene heteroarene alkene isocyanate acyl azide aminocarbonylation cobalt catalyst; amide preparation; CH activation; amides; azides; cobalt; isocyanates.Application In Synthesis of 1-(2-Bromophenyl)-1H-pyrazole.

Expedient C-H aminocarbonylations of unactivated (hetero)arenes and alkenes were accomplished with a cobalt(III) catalyst that shows high functional group tolerance. The C-H functionalization occurred with excellent chemo-, site-, and diastereoselectivity and enabled step-economical reactions with isocyanates or acyl azides.

There are many compounds similar to this compound(87488-84-4)Application In Synthesis of 1-(2-Bromophenyl)-1H-pyrazole. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem