Direct C3‐Arylation of 2 H‐Indazole Derivatives with Aryl Bromides by using Low Loading of a Phosphine‐free Palladium Catalyst
Sign Up to like & getrecommendations! Published in 2017 at "ChemCatChem"
DOI: 10.1002/cctc.201601420
Abstract: The palladium‐catalyzed direct arylation of 2 H‐indazoles with aryl bromides for the preparation of 3‐aryl‐2 H‐indazoles was found to proceed in high yields when using only 0.5–0.1 mol % Pd(OAc)2 catalyst and KOAc as inexpensive base. A wide variety… read more here.
Keywords: direct arylation; aryl bromides; electron; palladium ... See more keywords
Cobalt-Catalyzed Highly Regioselective Three-Component Arylcarboxylation of Acrylate with Aryl Bromides and Carbon Dioxide.
Sign Up to like & getrecommendations! Published in 2021 at "ChemSusChem"
DOI: 10.1002/cssc.202101963
Abstract: Cobalt-catalyzed regioselective three-component arylcarboxylation of acrylate with aryl bromides and carbon dioxide (CO2) has been developed. The reaction is carried out using cobalt chloride as a pre-catalyst and zinc powder as a reducing reagent under… read more here.
Keywords: regioselective three; aryl bromides; cobalt; arylcarboxylation ... See more keywords
The direct C4-arylation of 3,5-dimethylisoxazole with aryl bromides catalyzed by imidazolidin-2-ylidene based palladium-PEPPSI complexes
Sign Up to like & getrecommendations! Published in 2020 at "Inorganica Chimica Acta"
DOI: 10.1016/j.ica.2020.119454
Abstract: Abstract In this study, the synthesis and characterization of four new imidazolinium salts as carbene precursors and their corresponding four new PEPPSI-type (PEPPSI = Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) palladium complexes were reported. The structures… read more here.
Keywords: direct arylation; peppsi; aryl bromides; arylation dimethylisoxazole ... See more keywords
Copper-Catalyzed Methoxylation of Aryl Bromides with 9-BBN-OMe.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c03172
Abstract: A Cu-catalyzed cross-coupling reaction between aryl bromides and 9-BBN-OMe to provide aryl methyl ethers under mild conditions is reported. The oxalamide ligand BHMPO plays a key role in the transformation. Various functional groups on bromobenzenes… read more here.
Keywords: bromides bbn; aryl bromides; catalyzed methoxylation; bbn ome ... See more keywords
Ru-Catalyzed C-H Arylation of Acrylic Acids with Aryl Bromides.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01043
Abstract: In the presence of a [Ru(p-cymene)Cl2]2/triethylphosphine/lithium carbonate catalyst system, aryl bromides undergo (Z)-selective couplings with unprotected 2-arylacrylic acids to form (Z)-diarylacrylic acids. This vinylic C-H functionalization proceeds in high yields of up to 94% and… read more here.
Keywords: acrylic acids; acids aryl; arylation acrylic; catalyzed arylation ... See more keywords
Nickel-Catalyzed Desulfonylative Reductive Cross-Coupling of Aryl Sulfones with Aryl Bromides.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00185
Abstract: Herein, a nickel catalysis system for desulfonylative C(sp2)-C(sp2) reductive cross-coupling reactions of aryl sulfone derivatives with a range of aryl bromides has been established to form diverse biaryl compounds. The complex Ar-Ni(II)-SO2CF3 bearing a phosphine… read more here.
Keywords: reductive cross; cross coupling; nickel catalyzed; catalyzed desulfonylative ... See more keywords
Photoexcited NiII-Aryl Complex-Mediated Giese Reaction of Aryl Bromides.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01219
Abstract: A Giese reaction of aryl bromides with electron-deficient alkenes was developed, enabled by a dual catalyst system containing NiII complex and IrIII photocatalyst. This protocol could accommodate a variety of aryl bromides and electron-deficient alkenes,… read more here.
Keywords: niii aryl; aryl; reaction aryl; giese reaction ... See more keywords
Deaminative Reductive Cross-Electrophile Couplings of Alkylpyridinium Salts and Aryl Bromides.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.9b01014
Abstract: A nickel-catalyzed reductive cross-coupling of alkylpyridinium salts and aryl bromides has been developed using Mn as the reductant. Both primary and secondary alkylpyridinium salts can be used, and high functional group and heterocycle tolerance is… read more here.
Keywords: aryl bromides; reductive cross; alkylpyridinium; alkylpyridinium salts ... See more keywords
Micelle-Enabled Palladium Catalysis for Convenient sp2-sp3 Coupling of Nitroalkanes with Aryl Bromides in Water Under Mild Conditions
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DOI: 10.1021/acscatal.7b02663
Abstract: The efficacy of custom surfactant FI-750-M, designed to mimic polar solvents such as DMF and 1,4-dioxane, has been demonstrated with the palladium-catalyzed sp2-sp3 coupling of nitroalkanes to aryl bromides using a heteroleptic palladium catalyst under… read more here.
Keywords: sp2 sp3; sp3 coupling; aryl bromides; mild conditions ... See more keywords
Synthesis of Aryldiphenylphosphine Oxides by Quaternization of Tertiary Diphenylphosphines with Aryl Bromides Followed by the Wittig Reaction
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DOI: 10.1021/acsomega.0c01413
Abstract: A two-step method for the synthesis of aryldiphenylphosphine oxides from tertiary diphenylphosphines and aryl bromides is developed. The first step is the quaternization of methyldiphenylphosphine or benzyldiphenylphosphine with aryl bromides. This quaternization can be nickel-catalyzed… read more here.
Keywords: aryl bromides; synthesis aryldiphenylphosphine; quaternization; aryldiphenylphosphine oxides ... See more keywords
Room-Temperature Cu-Catalyzed Amination of Aryl Bromides Enabled by DFT-Guided Ligand Design.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.3c00500
Abstract: Ullmann-type C-N coupling reactions represent an important alternative to well-established Pd-catalyzed approaches due to the differing reactivity and the lower cost of Cu. While the design of anionic Cu ligands, particularly those by Ma, has… read more here.
Keywords: aryl; catalyzed amination; design; amination aryl ... See more keywords