Category: 258278-25-0

Garcia-Dominguez, Patricia published the artcileSynthesis of L-Au(I)-CF₂H Complexes and Their Application as Transmetalation Shuttles to the Difluoromethylation of Aryl Iodides, SDS of cas: 258278-25-0, the publication is Organometallics (2021), 40(17), 2923-2928, database is CAplus.

We describe herein two alternative protocols to efficiently prepare difluoromethylgold(I) complexes bearing ancillary ligands with different electronic and steric properties. LAu-OX (X = H and t-Bu) species, formed in the presence of base, have been identified as intermediate complexes involved in these transformations. The application of these compounds as “CF₂H transmetalation shuttles” from gold to palladium has been demonstrated in a Pd-catalyzed difluoromethylation reaction of aryl iodides, in which the Au-to-Pd transfer of “CF₂H” is feasible under stoichiometric conditions. These findings will pave the way for catalytic manifolds in gold chem.

Organometallics published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, SDS of cas: 258278-25-0.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Ott, Ingo published the artcileMetal N-heterocyclic carbene complexes in medicinal chemistry, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is Advances in Inorganic Chemistry (2020), 121-148, database is CAplus.

A review. Based on their strong s-donor properties N-heterocyclic carbene (NHC) ligands can form stable complexes with many transition metals. Numerous applications of metal NHC complexes have been developed in the field of chem. catalysis. The option to generate very stable complexes as well as the convenient access to a high number of structurally diverse NHC ligands have made them also attractive target compounds in inorganic medicinal chem. A fast increasing number of reports demonstrates that metal NHC complexes provide an excellent scaffold for metallodrug design and many examples have been studied pharmacol. in great detail. This chapter focuses on metal NHC complexes containing the selected metals ruthenium, rhodium, silver, iridium and gold.

Advances in Inorganic Chemistry published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Yang, Jin published the artcilePreparation and catalytic properties of the triphenylarsine and triphenylstibine-stabilized tri-heteroleptic NHC-Pd-allyl complexes, SDS of cas: 258278-25-0, the publication is Journal of Organometallic Chemistry (2019), 35-40, database is CAplus.

A series of triphenylarsine and triphenylstibine-stabilized tri-heteroleptic NHC-Pd-allyl complexes were synthesized and characterized. The solid-state structures of the complexes shown mononuclear carbene palladium complexes, in which, each palladium center was coordinated by an N-heterocyclic carbene, the η³-coordinated allyl moiety and an As or Sb donor. Further investigation of the Pd complexes as catalysts in Sonogashira coupling reaction was carried out and the obtained complexes exhibited good reactivities for aryl bromides.

Journal of Organometallic Chemistry published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C15H20O6, SDS of cas: 258278-25-0.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Yang, Jin published the artcile(N-heterocyclic carbene)PdCl(N-heterocyclic carboxylate) complexes: Synthesis and catalytic activities towards arylation of benzoxazoles with aryl halides, Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is Applied Organometallic Chemistry (2018), 32(7), n/a, database is CAplus.

A series of N-heterocyclic carboxylate-stabilized N-heterocyclic carbene palladium complexes has been synthesized and fully characterized. The solid-state structures indicate that each of the palladium centers is coordinated by an N-heterocyclic carbene, a chloride and a bidentate N,O-donor N-heterocyclic carboxylate ligand. The catalytic performance of the complexes was screened and the results revealed that the complexes exhibit moderate to high catalytic activities for the direct C-H bond arylation of benzoxazoles with aryl bromides.

Applied Organometallic Chemistry published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C15H12O8, Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Li, Yan-Qing published the artcileQuinolinyl Imidazolidin-2-imine Nickel Catalyzed Efficient Copolymerization of Norbornene with para-Chlorostyrene, Category: imidazoles-derivatives, the publication is Chinese Journal of Polymer Science (2020), 38(9), 941-949, database is CAplus.

A series of novel quinolinyl imidazolidin-2-imine nickel complexes with different substituents on the imidazolidin-2-imine ligand were synthesized and characterized. The complexes in the presence of methylaluminoxane (MAO) as a cocatalyst catalyzed the copolymerization of norbornene (N) and styrene (S) or para-chlorostyrene (CS) with high activity (up to 1070 kg·mol^-1·h^-1). The installation of sterically bulky substituents on the imidazolidine-2-imine ligand was effective for the increase of the mol. weight and the comonomer content, affording high mol. weight copolymers with tunable CS content (0.57 mol%-11.7 mol%), in which the existence of Cl group can provide reaction site for the further functionalization of copolymers as well as the synthesis of graft or crosslinked polymers. The linear relationship between the comonomer content and the glass transition temperature of the copolymers and the monomer reactivity ratios in the copolymerization indicated the formation of the expected functionalized cyclic olefin copolymers (COC).

Chinese Journal of Polymer Science published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Category: imidazoles-derivatives.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Lu, Bing published the artcileIron-catalyzed esterification of allylic sp³ C-H bonds with carboxylic acids: Facile access to allylic esters, HPLC of Formula: 258278-25-0, the publication is Tetrahedron Letters (2017), 58(25), 2490-2494, database is CAplus.

The first general and efficient iron-catalyzed esterification of allylic sp³ C-H bonds with carboxylic acids using ionic iron(III) complexes as a catalyst and DTBP (DTBP = di-tert-Bu peroxide) as an oxidant is achieved. A variety of allylic esters were synthesized in good to excellent yields using an ionic iron(III) complex as catalyst in a 5 mol% loading. This reaction is characterized by its high efficiency, broad substrate scope with excellent steric hindrance tolerance and good functional group compatibility.

Tetrahedron Letters published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, HPLC of Formula: 258278-25-0.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Ren, Wei published the artcilePalladium-NHC-Catalyzed Allylic Alkylation of Pronucleophiles with Alkynes, COA of Formula: C27H39ClN2, the publication is Organic Letters (2019), 21(19), 7956-7960, database is CAplus and MEDLINE.

The palladium-N-heterocyclic carbene (NHC)-catalyzed allylic alkylation of various pronucleophiles with alkynes has been accomplished under mild conditions. The protocol exhibits broad functional group compatibility and high atom economy. Moreover, the catalytic process avoids the use of external oxidants and acid as additives.

Organic Letters published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, COA of Formula: C27H39ClN2.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Huang, Shuai published the artcilePd-Catalyzed umpolung asymmetric allylic alkylation of hydrazones to vicinal tertiary and quaternary chiral carbon centers, Quality Control of 258278-25-0, the publication is Chemical Communications (Cambridge, United Kingdom) (2022), 58(21), 3513-3516, database is CAplus and MEDLINE.

Diastereo- and enantioselective construction of vicinal tertiary and quaternary carbon centers is a great challenge in synthetic chem. Herein, a facile and efficient protocol to construct unsaturated azo compounds I [R¹ = Ph, 4-FC₆H₄, 2-naphthyl, 2-thienyl, etc., R² = Me; R¹ = Ph, R² = Et; R¹R² = (CH₂)₅; R³ = Ph, 4-MeOC₆H₄, 1,3-benzodioxol-5-yl, 2-furyl, etc.] with vicinal tertiary and quaternary chiral carbon centers in high yields with high regio-, diastereo- and enantioselectivities via Pd-catalyzed umpolung asym. allylic alkylation of hydrazones II with monosubstituted allylic pivalates R³CH:CHCH₂OC(O)Bu-t by using Kundig-type chiral N-heterocyclic carbene as the ligand is reported. The control experiments revealed that the reaction proceeds via the inner-sphere mechanism.

Chemical Communications (Cambridge, United Kingdom) published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C27H39ClN2, Quality Control of 258278-25-0.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Weng, Yangyang published the artcileNickel-catalyzed allylic carbonylative coupling of alkyl zinc reagents with tert-butyl isocyanide, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is Nature Communications (2020), 11(1), 392, database is CAplus and MEDLINE.

By leveraging easily accessible tert-Bu isocyanide as the CO surrogate, a nickel-catalyzed allylic carbonylative coupling with alkyl zinc reagent RZnX (R = Me, n-Bu, Bn, cyclopentyl, 2-chloropyridin-5-yl, etc.; X = Br, Cl), allowing for the practical and straightforward preparation of synthetically important β,γ-unsaturated ketones R¹CH=C(R²)CH(R³)C(O)R (R¹ = n-Pr, Ph, cyclohexyl, furan-2-yl, etc.; R² = H, Me; R³ = H, Me, Et, cyclopropyl) in a linear-selective fashion with excellent trans-selectivity under mild conditions was described. Moreover, the undesired polycarbonylation process which is often encountered in palladium chem. could be completely suppressed. This nickel-based method features excellent functional group tolerance, even including the active aryl iodide functionality to allow the orthogonal derivatization of β,γ-unsaturated ketones. Preliminary mechanistic studies suggest that the reaction proceeds via π-allylnickel intermediate.

Nature Communications published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C12H14O2, Recommanded Product: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem

Yang, Ze-Kun published the artcileCross-coupling polycondensation via C-O or C-N bond cleavage, Safety of 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, the publication is Nature Communications (2018), 9(1), 1-7, database is CAplus and MEDLINE.

π-Conjugated polymers are widely used in optoelectronics for fabrication of organic photovoltaic devices, organic light-emitting diodes, organic field effect transistors, and so on. Here we describe the protocol for polycondensation of bifunctional aryl ethers or aryl ammonium salts with aromatic dimetallic compounds through cleavage of inert C-O/C-N bonds. This reaction proceeds smoothly in the presence of com. available Ni/Pd catalyst under mild conditions, affording the corresponding π-conjugated polymers with high mol. weight The method is applicable to monomers that are unreactive in other currently employed polymerization procedures, and opens up the possibility of transforming a range of naturally abundant chems. into useful functional compounds/polymers.

Nature Communications published new progress about 258278-25-0. 258278-25-0 belongs to imidazoles-derivatives, auxiliary class Achiral NHCs Ligands, name is 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, and the molecular formula is C11H21BF4N2O2, Safety of 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride.

Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem