Category: 651780-02-8

SDS of cas: 651780-02-8. 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: tert-Butyl 5-bromo-1H-indazole-1-carboxylate, is researched, Molecular C12H13BrN2O2, CAS is 651780-02-8, about Deprotection of N-tert-Butoxycarbonyl (Boc) Protected Functionalized Heteroarenes via Addition-Elimination with 3-Methoxypropylamine. Author is Gulledge, Zachary Z.; Carrick, Jesse D..

Continued pursuit of functionalized soft-N-donor complexant scaffolds with favorable solubility and kinetics profiles applicable for the separation of the trivalent minor actinides from the lanthanides has attracted significant interest over the last three decades. Recent work from this laboratory resulted in the production of various N-Boc protected [1,2,4]triazinyl-pyridin-2-yl indole Lewis basic procomplexants which necessitated the removal of the indole N-Boc protecting group prior to evaluation of complexant efficacy in separations assays. Traditional deprotection strategies involving trifluoroacetic and other protic and Lewis acids proved unsuccessful in removal of the recalcitrant indole-N-Boc protecting group necessitating the development of a new strategy for deprotection of this complexant class. A serendipitous result facilitated utilization of 3-methoxypropylamine as a mild deprotecting agent for various N-Boc protected heteroarenes via a proposed addition-elimination mechanism. Method development, application to various heteroarenes including indoles, 1,2-indazoles, 1,2-pyrazoles, and related derivatives, a ten-fold scale-up reaction, and exptl. evaluation of a preliminary mechanistic hypothesis are reported herein.

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Unsinn, Andreas; Wunderlich, Stefan H.; Knochel, Paul published the article 《Accelerated Zincations for an Efficient and Mild Functionalization of Aromatics and Heterocycles》. Keywords: arene heteroarene functionalization accelerated zincation acylation Negishi.They researched the compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate( cas:651780-02-8 ).Application In Synthesis of tert-Butyl 5-bromo-1H-indazole-1-carboxylate. 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:651780-02-8) here.

An improved process for the preparation of aromatic and heteroaromatic diorganozinc reagents and their subsequent reaction with electrophiles is presented. The new method, featuring the use of a 2,2,6,6-tetramethylpiperidyl (TMP) magnesium base in the presence of zinc chloride, is superior to the previous methods, which require the preparation of zinc bases. Specifically, the shorter reaction times under mild conditions provide an easier and more practical process, while the use of only a slight excess of the amide allows the isolation of products in high yields. These improvements are particularly significant for the large-scale preparation of organozincs and their subsequent reactions. Remarkably, beside the high kinetic activity, a wide range of functional groups is tolerated and sensitive heteroaromatics can easily be converted into the corresponding organometallic reagents and reacted with various electrophiles.

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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: 651780-02-8, is researched, Molecular C12H13BrN2O2, about Scaffold oriented synthesis. Part 4: Design, synthesis and biological evaluation of novel 5-substituted indazoles as potent and selective kinase inhibitors employing heterocycle forming and multicomponent reactions, the main research direction is indazole imidazopyrimidinyl thiazolyl imidazolothiazolyl imidazolyl preparation kinase inhibitor.Safety of tert-Butyl 5-bromo-1H-indazole-1-carboxylate.

The synthesis and biol. evaluation of 5-substituted indazoles as kinase inhibitors is reported. The compounds were synthesized in a parallel synthesis fashion from readily available starting materials employing heterocycle forming and multicomponent reactions and were evaluated against a panel of kinase assays. Potent inhibitors were identified for Gsk3β, Rock2, and Egfr.

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COA of Formula: C12H13BrN2O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate, is researched, Molecular C12H13BrN2O2, CAS is 651780-02-8, about Indazoles: Regioselective Protection and Subsequent Amine Coupling Reactions. Author is Slade, David J.; Pelz, Nicholas F.; Bodnar, Wanda; Lampe, John W.; Watson, Paul S..

Indazoles are unselectively protected under strongly basic conditions to give a mixture at positions N-1 and N-2. Under mildly acidic conditions, regioselective protection at N-2 takes place. Thermodn. conditions lead to regioselective protection at N-1. This trend applies to various substituted indazoles. Protected 5-bromoindazoles participate in Buchwald reactions with a range of amines to generate novel derivatives

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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: 651780-02-8, is researched, SMILESS is CC(C)(C)OC(=O)N1N=CC2=CC(Br)=CC=C12, Molecular C12H13BrN2O2Journal, Article, Research Support, N.I.H., Extramural, Organic Letters called Thioetherification via Photoredox/Nickel Dual Catalysis, Author is Jouffroy, Matthieu; Kelly, Christopher B.; Molander, Gary A., the main research direction is thioether aryl heteroaryl preparation; aryl heteroaryl bromide thioetherification thiol hypervalent alkylsilicate nickel photoredox.HPLC of Formula: 651780-02-8.

Hypervalent alkylsilicates represent new and readily accessible precursors for the generation of alkyl radicals under photoredox conditions. Alkyl radicals generated from such silicates serve as effective hydrogen atom abstractors from thiols, furnishing thiyl radicals. The reactive sulfur species generated in this manner can be funneled into a nickel-mediated cross-coupling cycle employing aromatic bromides to furnish thioethers. The serendipitous discovery of this reaction and its utilization for the thioetherification of various aryl and heteroaryl bromides with a diverse array of thiols are described. The S-H selective H atom abstraction event enables a wide range of functional groups, including those bearing protic moieties, to be tolerated.

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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: 651780-02-8, is researched, SMILESS is CC(C)(C)OC(=O)N1N=CC2=CC(Br)=CC=C12, Molecular C12H13BrN2O2Journal, Article, Journal of the American Chemical Society called Base-Free Photoredox/Nickel Dual-Catalytic Cross-Coupling of Ammonium Alkylsilicates, Author is Jouffroy, Matthieu; Primer, David N.; Molander, Gary A., the main research direction is photoredox nickel catalyzed coupling ammonium alkylsilicate hetero aryl bromide.Recommanded Product: 651780-02-8.

Single-electron transmetalation is recognized as an enabling technol. for the mild transfer of alkyl groups to transition metal catalysts in cross-coupling reactions. Hypercoordinate silicates represent a new and improved class of radical precursors because of their low oxidation potentials and the innocuous byproducts generated upon oxidation Herein, authors report the cross-coupling of secondary and primary ammonium alkylsilicates with (hetero)aryl bromides in good to excellent yields. The base-free conditions have exceptional protic group tolerance on both partners, permitting the cross-coupling of unprotected primary and secondary amines.

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Synthetic Route of C12H13BrN2O2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate, is researched, Molecular C12H13BrN2O2, CAS is 651780-02-8, about The application of nitrogen heterocycles in mitochondrial-targeting fluorescent markers with neutral skeletons. Author is Wang, Yue; Xu, Bing; Sun, Ru; Xu, Yu-Jie; Ge, Jian-Feng.

Four different neutral fluorescent markers containing nitrogen heterocycles (quinoxaline, 1H-pyrazolo[3,4-b]pyridine, 1H-indazole and 1H-pyrrolo[2,3-b]pyridine) as targeting groups were designed and prepared in order to screen out structural units for targeting mitochondria. Several classical fluorophores (coumarin, 1,8-naphthalimide and Nile Red) were connected with these heterocycles via Suzuki coupling reactions. The derivatives of coumarin (dyes 1a and 2a-c) and 1,8-naphthalimide (dyes 3a-c) fluoresced in the blue-green region, while the Nile Red derivatives (dyes 1b and 4a-c) fluoresced in the red light region. The optical properties of the classical fluorophores, such as emission properties and photostability, were retained in the new dyes. All of them showed low cytotoxicity. Confocal fluorescence experiments in L929 normal cells and HeLa cancer cells indicated that dyes 1a-b targeted dual sites of mitochondria and lipid droplets. Moreover, dyes 2a-c, 3a-c and 4a-c targeted mitochondria; meanwhile, there are only a few mitochondria-targeting markers with neutral skeletons. Furthermore, it was found that nitrogen heterocycles with N-H bonds can improve the mitochondrial targeting ability of partial neutral fluorophores.

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Oh, Yoo Jin; Yum, Eul Kgun published an article about the compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate( cas:651780-02-8,SMILESS:CC(C)(C)OC(=O)N1N=CC2=CC(Br)=CC=C12 ).Recommanded Product: 651780-02-8. 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:651780-02-8) through the article.

Diverse mono or biaryl substituents were introduced to indazole moieties under microwave-assisted palladium-catalyzed coupling reactions with isomeric bromoindazoles and aryl boronic acids. 1,3-Disubstituted indazoles were also obtained by C=C or C-N coupling of monosubstituted indazoles with functionalized terminal alkenes and arylhalides. Facile introduction of diverse substituents to indazoles showed useful synthetic approach for creating indazole compound library to discover biol. active small mols.

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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: 651780-02-8, is researched, Molecular C12H13BrN2O2, about Indazoles: Regioselective Protection and Subsequent Amine Coupling Reactions, the main research direction is indazole regioselective protection Buchwald amine coupling.Application of 651780-02-8.

Indazoles are unselectively protected under strongly basic conditions to give a mixture at positions N-1 and N-2. Under mildly acidic conditions, regioselective protection at N-2 takes place. Thermodn. conditions lead to regioselective protection at N-1. This trend applies to various substituted indazoles. Protected 5-bromoindazoles participate in Buchwald reactions with a range of amines to generate novel derivatives

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Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: tert-Butyl 5-bromo-1H-indazole-1-carboxylate, is researched, Molecular C12H13BrN2O2, CAS is 651780-02-8, about Scaffold oriented synthesis. Part 3: Design, synthesis and biological evaluation of novel 5-substituted indazoles as potent and selective kinase inhibitors employing [2+3] cycloadditions.Reference of tert-Butyl 5-bromo-1H-indazole-1-carboxylate.

We report the synthesis and biol. evaluation of 5-substituted indazoles e. g., I and amino indazoles e. g., II as kinase inhibitors. The compounds were synthesized in a parallel synthesis fashion from readily available starting materials employing [2+3] cycloaddition reactions and were evaluated against a panel of kinase assays. Potent inhibitors were identified for numerous kinases such as Rock2, Gsk3β, Aurora2 and Jak2.

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