250285-32-6 Archives - Page 3 of 11 - Imidazoles-derivatives

Tzouras, Nikolaos V. team published research in Chemistry – A European Journal in 2020 | 250285-32-6

COA of Formula: C27H37ClN2, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

1,3-Bis(2,6-diisopropylphenyl)imidazolium Chloride is an imidazolium salt that is active against all stages of Trypanosoma cruzi and may represent a promising candidate for treatment of Chagas disease.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride is an organic compound that is used as a solvent. It was originally synthesized by reacting triethyl orthoformate with 2,6-diisopropylaniline. This reaction formed the corresponding imidazolium salt. The synthesis of this compound was later improved by using ring-opening polymerization of glycolide and furfural. 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride is mainly used to extract estradiol from urine samples in clinical laboratories., 250285-32-6.

Imidazole is a five-membered heterocyclic moiety that possesses three carbon, two nitrogen, four hydrogen atoms, and two double bonds. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. It is also known as 1, 3-diazole. It contains two nitrogen atoms, in which one nitrogen bear a hydrogen atom, and the other is called pyrrole type nitrogen. COA of Formula: C27H37ClN2.

Tzouras, Nikolaos V.;Nahra, Fady;Falivene, Laura;Cavallo, Luigi;Saab, Marina;Van Hecke, Kristof;Collado, Alba;Collett, Christopher J.;Smith, Andrew D.;Cazin, Catherine S. J.;Nolan, Steven P. research published 《 A Mechanistically and Operationally Simple Route to Metal-N-Heterocyclic Carbene (NHC) Complexes》, the research content is summarized as follows. The authors were puzzled by the involvement of weak organic and inorganic bases in the synthesis of metal-N-heterocyclic carbene (NHC) complexes. Such bases are insufficiently strong to permit the presumed required deprotonation of the azolium salt (the carbene precursor) prior to metal binding. Exptl. and computational studies provide support for a base-assisted concerted process that does not require free NHC formation. The synthetic protocol was found applicable to a number of transition-metal- and main-group-centered NHC compounds and could become the synthetic route of choice to form M-NHC bonds.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tzouras, Nikolaos V. team published research in Chemistry – A European Journal in 2021 | 250285-32-6

Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Imidazole Biochem/physiol Actions: Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. It also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes. Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride.

Tzouras, Nikolaos V.;Martynova, Ekaterina A.;Ma, Xinyuan;Scattolin, Thomas;Hupp, Benjamin;Busen, Hendrik;Saab, Marina;Zhang, Ziyun;Falivene, Laura;Pisano, Gianmarco;Van Hecke, Kristof;Cavallo, Luigi;Cazin, Catherine S. J.;Steffen, Andreas;Nolan, Steven P. research published 《 Simple Synthetic Routes to Carbene-M-Amido (M = Cu, Ag, Au) Complexes for Luminescence and Photocatalysis Applications》, the research content is summarized as follows. The development of novel and operationally simple synthetic routes to carbene-metal-amido (CMA) complexes [(NHC)M(Cbz)] (NHC = substituted 2-imidazolylidene; HCbz = 9H-carbazole; M = Cu, Ag, Au) of copper, silver and gold relevant for photonic applications are reported. A mild base and sustainable solvents allow all reactions to be conducted in air and at room temperature, leading to high yields of the targeted compounds even on multigram scales. The effect of various mild bases on the N-H metalation was studied in silico and exptl., while a mechanochem., solvent-free synthetic approach was also developed. Our photophys. studies on [M(NHC)(Cbz)] indicate that the occurrence of fluorescent or phosphorescent states is determined primarily by the metal, providing control over the excited state properties. Consequently, we demonstrate the potential of the new CMAs beyond luminescence applications by employing a selected CMA as a photocatalyst. The exemplified synthetic ease is expected to accelerate the applications of CMAs in photocatalysis and materials chem.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Vermersch, Francois team published research in Angewandte Chemie, International Edition in 2021 | 250285-32-6

SDS of cas: 250285-32-6, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Vermersch, Francois;Yazdani, Sima;Junor, Glen P.;Grotjahn, Douglas B.;Jazzar, Rodolphe;Bertrand, Guy research published 《 Stable Singlet Carbenes as Organic Superbases》, the research content is summarized as follows. A simple exptl. procedure for scaling carbene Bronsted basicity was described. The results highlighted the strong basicity of pyrazol-4-ylidenes, a type of mesoionic carbene, also named cyclic-bentallenes (CBA). They were more basic (pK_aH >42.7 in acetonitrile) than the popular proazaphosphatrane Verkade bases and even the Schwesinger phosphazene superbase P₄(^tBu). The basicity of these compounds can readily be tuned, and they are accessible in multigram quantities. These results open new avenues for carbon centered superbases.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Wang, Fei team published research in ACS Applied Energy Materials in 2020 | 250285-32-6

Quality Control of 250285-32-6, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Wang, Fei;Su, Yanning;Li, Yuanzhen;Wei, Dongyuan;Sun, Hanxue;Zhu, Zhaoqi;Liang, Weidong;Li, An research published 《 Salt-Resistant Photothermal Materials Based on Monolithic Porous Ionic Polymers for Efficient Solar Steam Generation》, the research content is summarized as follows. The exploitation of salt-resistant photothermal materials is of great importance for practical solar desalination. Herein, we report, for the first time, the synthesis of monolithic porous ionic polymers (PIPs) coated with polypyrrole (PPy) as self-desalting photothermal materials for efficient solar steam generation. Based on their good thermal insulation, the desired mesopores, and the extremely high light absorption (98%), the PPy-coated PIPs exhibit a high evaporation efficiency of 89% under 1 sun irradiation and superior durability in terms of evaporation efficiency in high-salinity (30 wt %) brine. Quite different from the existing salt-resistant photothermal materials by the artificial creation of aligned channels or Janus wettability, interestingly, the self-desalting of our materials depends on their intrinsically porous ionic framework, which could serve as “ions barrier” to shield the cations of saline solution These findings may provide an opportunity for future design and fabrication of self-desalting photothermal materials by only one-pot synthesis without a further complicated process.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tailor, Sanita B. team published research in ACS Catalysis in 2021 | 250285-32-6

Formula: C27H37ClN2, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Tailor, Sanita B.;Manzotti, Mattia;Smith, Gavin J.;Davis, Sean A.;Bedford, Robin B. research published 《 Cobalt-Catalyzed Coupling of Aryl Chlorides with Aryl Boron Esters Activated by Alkoxides》, the research content is summarized as follows. The cobalt-catalyzed Suzuki biaryl cross-coupling of aryl chloride substrates with aryl boron reagents, activated with more commonly used bases, remained a significant unmet challenge in the race to replace platinum group metal catalysts with Earth-abundant metal alternatives. This highly desirable process can be realized using alkoxide bases, provided the right counterion is employed, strict stoichiometric control of the base is maintained with respect to the aryl boron reagent, and the correct boron ester is selected. Potassium tert-butoxide works well, but any excess of the base first inhibits and then poisons the catalyst. Lithium tert-butoxide performs very poorly, while even catalytic amounts of lithium additives also poison the catalyst. Meanwhile, a neopentane diol-based boron ester is required for best performance. As well as delivering this sought-after transformation, a detailed mechanistic and computational investigations to probe the possible mechanism of the reaction has been discussed and explains the unexpected exptl. observations.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Takemura, Naho team published research in ACS Catalysis in 2022 | 250285-32-6

250285-32-6, 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, also known as 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride, is a useful research compound. Its molecular formula is C27H37ClN2 and its molecular weight is 425 g/mol. The purity is usually 95%.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Takemura, Naho;Sumida, Yuto;Ohmiya, Hirohisa research published 《 Organic Photoredox-Catalyzed Silyl Radical Generation from Silylboronate》, the research content is summarized as follows. A visible-light-driven silyl radical generation method from silylboronates was developed. The activation of silylboronates with a catalytic amount of mild base promoted the single-electron oxidation process to form silyl radicals. Facile single electron transfer for the borate form readily occurred without H atom transfer for hydrosilane in the presence of various photoredox catalysts. Combining this protocol with radical-mediated N-heterocyclic carbene catalysis enabled the acylsilylation of alkenes via a radical relay process with silyl radical generation. Also, the recent advanced methods for the synthesis of silylboronates significantly improved the utility of this silyl radical generation alkenes acylimidazole.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tan, Hui team published research in Angewandte Chemie, International Edition in 2021 | 250285-32-6

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. Their solubility in alcohol is lower than that in water and decreases with increasing molecular weight of the alcohols . Safety of 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride.

Tan, Hui;Wang, Shen-An;Yan, Zixi;Liu, Jianzhong;Wei, Jialiang;Song, Song;Jiao, Ning research published 《 N-Heterocyclic Carbene Catalyzed Ester Synthesis from Organic Halides through Incorporation of Oxygen Atoms from Air》, the research content is summarized as follows. Oxygenation reactions with mol. oxygen (O₂) as the oxygen source provides a green and straightforward strategy for the construction of O-containing compounds Demonstrated here is a novel N-heterocyclic carbene (NHC) catalyzed oxidative transformation of simple and readily available organic halides into valuable esters through the incorporation of O-atoms from O₂. Mechanistic studies prove that the deoxy Breslow intermediate generated in situ is oxidized to a Breslow intermediate for further transformation by this oxidative protocol. This method broadens the field of NHC catalysis and promotes oxygenation reactions with O₂.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tao, Lei team published research in Journal of the American Chemical Society in 2020 | 250285-32-6

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with an increase of the alkyl chain length of the alcohols. Related Products of 250285-32-6.

Tao, Lei;Guo, Xueying;Li, Jie;Li, Ruoling;Lin, Zhenyang;Zhao, Wanxiang research published 《 Rhodium-Catalyzed Deoxygenation and Borylation of Ketones: A Combined Experimental and Theoretical Investigation》, the research content is summarized as follows. The Rh-catalyzed deoxygenation and borylation of ketones with B₂pin₂ were developed, leading to efficient formation of alkenes, vinylboronates, and vinyldiboronates. These reactions feature mild reaction conditions, a broad substrate scope, and excellent functional-group compatibility. Mechanistic studies support that the ketones initially undergo a Rh-catalyzed deoxygenation to give alkenes via B enolate intermediates, and the subsequent Rh-catalyzed dehydrogenative borylation of alkenes gives vinylboronates and diboration products, which is also supported by d. functional theory calculations

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tay, Boonying team published research in Industrial & Engineering Chemistry Research in 2021 | 250285-32-6

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Tay, Boonying;van Meurs, Martin;Tan, Jozel;Ye, Suming;Borgna, Armando;van Herk, Alexander M.;Selvaratnam, Selvasothi;Wang, Cun;Taniguchi, Shohei;Suzuki, Yousuke;Utsunomiya, Masaru;Ito, Mitsunobu;Monden, Toshiki;Shibata, Hiroki;Tomita, Shohei research published 《 Imidazolium-Catalyzed Formation of Bisphenol A Polycarbonate with a Reduced Level of Branching》, the research content is summarized as follows. The melt-phase polymerization of bisphenol A (BPA) and di-Ph carbonate (DPC) catalyzed by alk. metal catalysts produces polycarbonates with high branching, which impairs the product’s properties during weather resistance, ductility, and rheol. The use of an imidazolium-type catalyst can result in a reduced amount of branching relative to the benchmark Cs₂CO₃ catalyst. Modification of the imidazolium structure, especially by introducing a substitution at the C2 position, definitely improves the catalyst performance in enhancing the catalyst stability and reducing the branching level in the polycarbonate product. For the best catalyst identified (1,3-Ad₂-2-Ph-Im-BPA), we have shown that at a DPC/BPA ratio of 1.075 and a catalyst loading of 7 ppm, the specifications can be met at the laboratory scale: polymerization time = 125 min, M_n = 11.0 K, OH = 660 ppm, branching = 460 ppm (∼75% reduction relative to the Cs₂CO₃ benchmark), and yellowness index = 6.3.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Thomas-Hargreaves, Lewis R. team published research in Chemistry – A European Journal in 2022 | 250285-32-6

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. Their solubility in alcohol is lower than that in water and decreases with increasing molecular weight of the alcohols . Name: 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride.

Thomas-Hargreaves, Lewis R.;Berthold, Chantsalmaa;Augustinov, William;Mueller, Matthias;Ivlev, Sergei I.;Buchner, Magnus R. research published 《 Reactivity of Diphenylberyllium as a Broensted Base and Its Synthetic Application》, the research content is summarized as follows. Diphenylberyllium [Be₃Ph₆] is shown here to react cleanly as a Broensted base with a vast variety of protic compounds Through the addition of the simple mols. tBuOH, HNPh₂ and HPPh₂, as well as the more complex 1,3-bis-(2,6-diisopropylphenyl)imidazolinium chloride, one or two Ph groups in diphenylberyllium were protonated. As a result, the long-postulated structures of [Be₃(OtBu)₆] and [Be(μ-NPh₂)Ph]₂ have finally been verified and shown to be static in solution Addnl. [Be(μ-PPh₂)(HPPh₂)Ph]₂ was generated, which is only the second beryllium-phospanide to be prepared; the stark differences between its behavior and that of the analogous amide were also examined The first crystalline example of a beryllium Grignard reagent with a non-bulky aryl group has also been prepared; it is stabilized with an N-heterocyclic carbene.

1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride has been used to generate N-heterocyclic carbene catalysts for use in carbonylative cross-coupling of pyridyl halides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem