Cu2O/Graphene as an Efficient and Ligand Free Heterogeneous Catalyst for Ullmann Coupling of N–H Containing Compounds with Aryl Halides
Sign Up to like & getrecommendations! Published in 2018 at "Catalysis Surveys from Asia"
DOI: 10.1007/s10563-018-9245-6
Abstract: The graphene supported Cu2O nanoparticles were prepared via a two-step liquid-phase method and exhibited high catalytic activity and stability for the Ullmann coupling of aryl halides with N–H containing compounds under mild and ligand-free conditions.… read more here.
Keywords: ligand free; containing compounds; cu2o graphene; aryl halides ... See more keywords
Cyanation of aryl halides and Suzuki-Miyaura coupling reaction using palladium nanoparticles anchored on developed biodegradable microbeads.
Sign Up to like & getrecommendations! Published in 2020 at "International journal of biological macromolecules"
DOI: 10.1016/j.ijbiomac.2020.01.157
Abstract: This work reports i) green synthesis of palladium nanoparticles (Pd NPs) on the developed biodegradable microbeads as stabilizers, featuring chitosan, agarose and beta-cyclodextrin, ii) investigation of the catalytic role of the Pd NPs prepared in… read more here.
Keywords: palladium nanoparticles; developed biodegradable; cyanation; biodegradable microbeads ... See more keywords
Polyethylene glycol (PEG) promoted hydrodehalogenation of aryl halides
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2017.03.016
Abstract: Transition-metal-free hydrodehalogenation of aryl halides (eg. bromides) can take place efficiently in the presence of green polyethylene glycol (PEG-800) and t-BuOK without adding any extra solvents and additives. A radical mechanism is proposed for this… read more here.
Keywords: hydrodehalogenation aryl; glycol peg; polyethylene glycol; aryl halides ... See more keywords
A Mechanistic Study of the Cobalt(I)-Catalyzed Amination of Aryl Halides: Effects of Metal and Ligand.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c02385
Abstract: Transition-metal-catalyzed amination of aryl halides is a useful approach for the synthesis of medicinal compounds, organic functional materials, and agrochemical compounds. A systematic DFT study has been performed to investigate the mechanism of the Co(I)-catalyzed… read more here.
Keywords: aryl halides; catalyzed amination; amination; amination aryl ... See more keywords
Palladium-Catalyzed Hydroxylation of Aryl Halides with Boric Acid.
Sign Up to like & getrecommendations! Published in 2020 at "Organic letters"
DOI: 10.1021/acs.orglett.0c03069
Abstract: Boric acid, B(OH)3, is proved to be an efficient hydroxide reagent in converting (hetero)aryl halides to the corresponding phenols with a Pd catalyst under mild conditions. Various phenol products were obtained in good to excellent… read more here.
Keywords: catalyzed hydroxylation; palladium catalyzed; aryl halides; hydroxylation aryl ... See more keywords
Aryl Halides as Halogenation Reagents in the Bromination and Iodination of Arene-Tethered Diols.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02358
Abstract: Aromatic halides constitute a valuable class of building blocks that are commonly used in organic synthesis. In this study, we demonstrate usage of aryl bromides and aryl iodides in C-Br or C-I bond formation. Methyl… read more here.
Keywords: tethered diols; bromination iodination; arene tethered; aryl halides ... See more keywords
Solvent Anions Enable Photoinduced Borylation and Phosphonation of Aryl Halides via EDA Complexes.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02631
Abstract: We report the synthesis of aryl boronic esters and aryl phosphonate esters promoted by visible-light in the absence of transition-metals or photoredox catalysts. The transformation proceeds at room temperature using sodium hydride, as a non-nucleophilic… read more here.
Keywords: enable photoinduced; aryl halides; eda; photoinduced borylation ... See more keywords
Ni(I)-Catalyzed Hydroxylation of Aryl Halides with Water under Thermal Catalysis.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c03840
Abstract: A highly efficient hydroxylation of (hetero)aryl halides using water as a hydroxyl source via Ni catalysis promoted by PhSiH3 under thermal catalysis is reported. This methodology provides a general procedure to obtain diverse multifunctional pharmaceutically… read more here.
Keywords: catalysis; thermal catalysis; aryl halides; water ... See more keywords
Light-Promoted Nickel-Catalyzed C-O/C-N Coupling of Aryl Halides with Carboxylic Acids and Sulfonamides.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.2c04210
Abstract: A general strategy for the construction of dual-functional carbon-heteroatom bonds has been developed via a light-promoted nickel catalytic system. Employing a simple NiBr2 as the catalyst without any exogeneous ligands and photosensitizers, a variety of… read more here.
Keywords: promoted nickel; coupling aryl; nickel catalyzed; aryl halides ... See more keywords
Photoredox/Nickel Dual-Catalyzed Regioselective Allylic Arylations of Allyl Trifluoroborates with Aryl Halides.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01147
Abstract: An efficient photoredox/nickel dual-catalyzed coupling of allyl trifluoroborates with aryl halides has been developed, which provides an attractive route to diverse-substituted allylic benzenes. The method offers several advantages, such as high efficiency and regioselectivity, mild… read more here.
Keywords: trifluoroborates aryl; allyl trifluoroborates; aryl halides; dual catalyzed ... See more keywords
Palladium-Catalyzed Arylcarboxylation of Propargylic Alcohols with CO2 and Aryl Halides: Access to Functionalized α-Alkylidene Cyclic Carbonates.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b00111
Abstract: A palladium-catalyzed, three-component reaction between propargylic alcohols, CO2, and aryl halides was developed whereby a sequential carboxylation, trans-oxopalladation of the C≡C bond by an ArPdX species, and a reductive elimination procedure afforded a series of… read more here.
Keywords: functionalized alkylidene; palladium catalyzed; propargylic alcohols; aryl halides ... See more keywords