M.W=400-450 Archives - Page 30 of 35 - Imidazoles-derivatives

Oliveira, Joao C. A. team published research in ACS Catalysis in 2021 | 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 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. COA of Formula: C27H37ClN2.

Oliveira, Joao C. A.;Dhawa, Uttam;Ackermann, Lutz research published 《 Insights into the Mechanism of Low-Valent Cobalt-Catalyzed C-H Activation》, the research content is summarized as follows. The use of cobalt complexes of N-heterocycle carbene (NHC) ligands as catalysts for C-H activation is extremely advantageous due to their low costs and high efficiencies at room temperature These catalysts have been proposed to operate in low oxidation states and have successfully been applied in C-H alkylations as well as C-H arylations, among others. Despite these indisputable advances, detailed mechanistic insights into their exact working mode continue to be scarce. Herein, we present extensive DFT and DLPNO-CCSD(T) computational studies, which provide strong support for a mechanism via low-valent cobalt-catalyzed C-H activations. Our findings indicate the key C-H metalation to proceed through a ligand-to-ligand hydrogen transfer (LLHT) pathway rather than a classical oxidative addition mechanism.

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

Mazars, Francois team published research in European Journal of Organic Chemistry in 2021 | 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.

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. Application of C27H37ClN2.

Mazars, Francois;Hrubaru, Madalina;Tumanov, Nikolay;Wouters, Johan;Delaude, Lionel research published 《 Synthesis of Azolium-2-dithiocarboxylate Zwitterions under Mild, Aerobic Conditions》, the research content is summarized as follows. Twelve imidazolium-, imidazolinium-, or benzimidazolium-2-dithiocarboxylate zwitterions with aliphatic or aromatic substituents on their nitrogen atoms, including four new unsym. 1-alkyl-3-arylimidazolium derivatives, were obtained in high yields (62-96%) upon reaction of azolium salts with CS₂ and Cs₂CO₃ in acetonitrile at room temperature Compared to the previous strategies devised for the synthesis of NHC·CS₂ betaines, this novel procedure relied on an innocuous, weak base and could be applied under mild aerobic conditions. All the new compounds were fully characterized by various anal. techniques and the mol. structures of two of them were determined by XRD anal. An associative mechanism involving the concerted reaction of the azolium salts with both CS₂ and CO₃^2- was tentatively proposed to account for the formation of the zwitterionic adducts without the intervention of free carbenes. This would explain the good results obtained with a weak inorganic base that lacks the strength needed to deprotonate the azolium salt substrates.

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

Mikhaylov, Vladimir N. team published research in Chemistry of Heterocyclic Compounds (New York, NY, United States) in 2020 | 250285-32-6

Electric Literature 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.

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. Electric Literature of 250285-32-6.

Mikhaylov, Vladimir N.;Pavlov, Artem O.;Ogorodnov, Yaroslav V.;Spiridonova, Dar’ya V.;Sorokoumov, Viktor N.;Balova, Irina A. research published 《 N-Propargylation and Copper(I)-Catalyzed Azide-Alkyne Cycloaddition as a Convenient Strategy for Directed Post-Synthetic Modification of 4-Oxo-1,4-Dihydrocinnoline Derivatives》, the research content is summarized as follows. 4-Oxo-1,4-dihydrocinnoline derivatives as promising inhibitors of protein tyrosine phosphatase 1B were subjected to post-synthetic modification via a sequence of propargylation and copper(I)-catalyzed azide-alkyne cycloaddition reactions. The propargylation of 4-oxo- 1,4-dihydrocinnolines with propargyl bromide in the presence of various bases proceeded regioselectively at the cinnolinone N-1 atom. In the cycloaddition reaction of N-propargylcinnolinones and benzyl azide, the highest catalytic activity of copper(I) N-heterocyclic carbene complex [(IMes)Cu(Br,I)] (IMes = 1,3-bis-(2,4,6-trimethylphenyl)imidazol-2-ylidene) was observed, compared to [(IMes)CuCl], [(IPr)Cu(Cl,Br,I)] (IPr = 1,3-bis(2,6-diisopropylphenyl)-imidazol-2-ylidene), and CuI.

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

Lv, Leiyang team published research in Angewandte Chemie, International Edition in 2021 | 250285-32-6

Computed Properties 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.

Imidazole based anticancer drug find applications in cancer chemotherapy. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC). Computed Properties of 250285-32-6.

Lv, Leiyang;Li, Chao-Jun research published 《 Palladium-Catalyzed Defluorinative Alkylation of gem-Difluorocyclopropanes: Switching Regioselectivity via Simple Hydrazones》, the research content is summarized as follows. Conventional approaches for Pd-catalyzed ring-opening cross-couplings of gem-difluorocyclopropanes with nucleophiles predominantly deliver the β-fluoroalkene scaffolds (linear selectivity). Herein, we report a cooperative strategy that can completely switch the reaction selectivity to give the alkylated α-fluoroalkene skeletons (branched selectivity). The unique reactivity of hydrazones that enables analogous inner-sphere 3,3′-reductive elimination driven by denitrogenation, as well as the assistance of steric-embedded N-heterocyclic carbene ligand, are the key to switch the regioselectivity. A wide range of hydrazones derived from naturally abundant aryl and alkyl aldehydes are well applicable, and various gem-difluorocyclopropanes, including modified pharmaceutical and biol. mols., can be efficiently functionalized with high value alkylated α-fluorinated alkene motifs under mild conditions. Thus, e.g., cyclopropane I + benzaldehyde hydrazone → II (97%, 94% isolated) in presence of Pd-PEPPSI-SIPr and KOH in THF.

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

Ma, Xinyuan team published research in Dalton Transactions 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 is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 250285-32-6, formula is C27H37ClN2, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents. SDS of cas: 250285-32-6.

Ma, Xinyuan;Guillet, Sebastien G.;Peng, Min;Van Hecke, Kristof;Nolan, Steven P. research published 《 A simple synthesis of [RuCl₂(NHC)(p-cymene)] complexes and their use in olefin oxidation catalysis》, the research content is summarized as follows. A simple and efficient synthetic route to [RuCl₂(NHC)(p-cymene)] and [Ru(CO₃)(NHC)(p-cymene)] (NHC = 1,3-R₂-2-imidazolylidene) complexes making use of a weak base, under aerobic conditions, is reported. This method enables access to a series of NHC-ruthenium compounds with moderate to good yields under mild conditions. The Ru pre-catalysts were successfully used in olefin oxidation catalysis at low catalyst loading and reach complete conversion in short times.

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

Ma, Xinyuan team published research in Journal of Organic Chemistry in 2022 | 250285-32-6

Related Products 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.

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 . Related Products of 250285-32-6.

Ma, Xinyuan;Tzouras, Nikolaos V.;Peng, Min;Van Hecke, Kristof;Nolan, Steven P. research published 《 Azolium Aurates as Pre-Catalysts for the Oxidative Coupling of Terminal Alkynes under Mild Conditions》, the research content is summarized as follows. A simple and efficient method for the oxidative coupling of terminal alkynes was reported for the first time, using imidazol(in)ium aurates as pre-catalysts. This approach displayed high functional group tolerance and led to a broad range of 1,3-diyne compounds in moderate to excellent yields using low catalyst loading and was performed in air under mild and sustainable conditions.

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

Maliszewski, Benon P. team published research in Dalton Transactions in 2020 | 250285-32-6

Name: 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.

Maliszewski, Benon P.;Tzouras, Nikolaos V.;Guillet, Sebastien G.;Saab, Marina;Belis, Marek;Van Hecke, Kristof;Nahra, Fady;Nolan, Steven P. research published 《 A general protocol for the synthesis of Pt-NHC (NHC = N-heterocyclic carbene) hydrosilylation catalysts》, the research content is summarized as follows. A general, user-friendly synthetic route to [Pt(NHC)(L)Cl₂] and [Pt(NHC)(dvtms)] (L = DMS, Py; DMS = di-Me sulfide, dvtms = divinyltetramethylsiloxane, Py = pyridine) complexes has been developed. The procedure is applicable to a wide range of ligands and enables facile synthetic access to key Pt(0)- and Pt(II)-NHC complexes used in hydrosilylation catalysis.

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

Maliszewski, Benon P. team published research in Dalton Transactions in 2022 | 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.

Maliszewski, Benon P.;Ritacco, Ida;Belis, Marek;Hashim, Ishfaq Ibni;Tzouras, Nikolaos V.;Caporaso, Lucia;Cavallo, Luigi;Van Hecke, Kristof;Nahra, Fady;Cazin, Catherine S. J.;Nolan, Steven P. research published 《 A green route to platinum N-heterocyclic carbene complexes: mechanism and expanded scope》, the research content is summarized as follows. A sustainable and facile weak-base synthetic route to Pt N-heterocyclic carbene (NHC) complexes is disclosed. The mechanism of this reaction is also elucidated via exptl. and computational studies. This straightforward protocol is then used for the synthesis of novel Pt(II)-NHC complexes and its utility is further explored to access key Pt(0)-NHC precatalysts.

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

Lin, Jin team published research in European Journal of Organic Chemistry in 2021 | 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.

Lin, Jin;Liang, Guanfeng;Wu, Chaoyi;Tian, Xu research published 《 Direct Synthesis of Naphthalenes by Nickel-Catalyzed Cascade Cyclization of o-Vinyl Chlorobenzenes with Internal Alkynes》, the research content is summarized as follows. An efficient nickel-catalyzed arylnickelation of alkyne/Heck cyclization of challenging o-vinyl chlorobenzenes with internal alkynes was developed. This protocol enabled synthesis of a wide variety of substituted naphthalenes in a cascade process from readily available starting materials. Mechanistic studies indicated the radical pathway was not involved in the cascade catalytic system.

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

Lin, Jin team published research in Organic Letters 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.

Lin, Jin;Wu, Chaoyi;Tian, Xu research published 《 Nickel-Catalyzed Cascade Reaction of 2-Vinylanilines with gem-Dichloroalkenes》, the research content is summarized as follows. An efficient nickel-catalyzed cascade reaction of 2-vinylanilines with gem-dichloroalkenes was developed to deliver diversely substituted quinolines I [R¹ = Me, Ph, 4-MeC₆H₄, etc.; R² = H, 6-Me, 7-Me, 5,7-di-Me, R³ = Ph, 4-MeC₆H₄, octyl, etc.] in good to high yields. This protocol enabled effective access to quinolines bearing various functional groups in the cascade process from readily available feedstock chems. Mechanistic studies suggest that two plausible pathways were involved in the IPr-nickel catalytic system.

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