Ullmann coupling of aryl chlorides in water catalyzed by palladium nanoparticles supported on amine-grafted porous aromatic polymer
Sign Up to like & getrecommendations! Published in 2017 at "Molecular Catalysis"
DOI: 10.1016/j.mcat.2017.05.003
Abstract: Abstract A chemically stable porous carbonyl-incorporated aromatic polymer (CBAP-1(EDA)) was post-synthetically functionalized with ethylenediamine, and used as a solid support to immobilize the Pd nanoparticles (Pd@CBAP-1(EDA)) with particle size of 2–4 nm using conventional chemical reduction.… read more here.
Keywords: chlorides water; aromatic polymer; coupling aryl; spectroscopy ... See more keywords
Nickel-catalyzed cross-coupling of aryl or 2-menaphthyl quaternary ammonium triflates with organoaluminum reagents
Sign Up to like & getrecommendations! Published in 2017 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.06.004
Abstract: Abstract The cross-coupling of aryltrimethylammonium triflates with AlMe 3 and β-H-containing trialkylaluminums was performed in dioxane at 110 °C under catalysis of (dppp)NiCl 2 to afford alkylated arenes. The cross-coupling of 2-menaphthyltrimethylammonium triflate with trialkylaluminums and… read more here.
Keywords: aryl menaphthyl; cross; coupling aryl; catalyzed cross ... See more keywords
Sonogashira Cross-Coupling of Aryl Ammonium Salts by Selective C-N Activation Catalyzed by Air- and Moisture-Stable, Highly Active [Pd(NHC)(3-CF3-An)Cl2] (An = Aniline) Precatalysts.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c02534
Abstract: We report the Sonogashira cross-coupling of aryl ammonium salts catalyzed by air- and moisture-stable [Pd(NHC)(3-CF3-An)Cl2] (An = aniline). This highly active Pd(II)-NHC complex features broad scope and excellent C-N activation selectivity in the challenging alkynylative… read more here.
Keywords: coupling aryl; cross coupling; cf3 cl2; aryl ammonium ... See more keywords
Synthesis of Chiral β,β-Disubstituted Ketones via CuH-Catalyzed Coupling of Aryl Alkenes and 3-Aryl-2H-azirines.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c03311
Abstract: A CuH-catalyzed coupling of aryl alkenes with 3-aryl-2H-azirines has been developed to synthesize optically active β,β-disubstituted ketones. We propose that this protocol occurs through a sequence in which a chiral alkylcopper complex regioselectively attacks the… read more here.
Keywords: disubstituted ketones; coupling aryl; cuh catalyzed; aryl alkenes ... 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
Nickel Catalyzed Cross-Coupling of Aryl and Alkenyl Triflates with Alkyl Thiols.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00218
Abstract: We report a nickel catalyzed C-S cross-coupling of aryl and alkenyl triflates with alkyl thiols. A variety of the corresponding thioethers were synthesized using an air-stable nickel precatalyst under mild reaction conditions with short reaction… read more here.
Keywords: coupling aryl; alkenyl triflates; cross coupling; nickel catalyzed ... See more keywords
Nickel-Catalyzed Direct Cross-Coupling of Aryl Thioether with Aryl Bromide.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00518
Abstract: A straightforward cross-coupling of aryl thioether with aryl bromide with the aid of nickel salt, magnesium, and lithium chloride in tetrahydrofuran at ambient temperature was accomplished. The one-pot reactions proceeded efficiently via C-S bond cleavage… read more here.
Keywords: coupling aryl; cross coupling; aryl thioether; aryl bromide ... See more keywords
Co(II)-Catalyzed Regioselective Cross-Dehydrogenative Coupling of Aryl C-H Bonds with Carboxylic Acids.
Sign Up to like & getrecommendations! Published in 2017 at "Organic letters"
DOI: 10.1021/acs.orglett.7b01942
Abstract: A cobalt(II)-catalyzed regioselective aryl C-H bond oxygenation between arenes and aryl or aliphatic carboxylic acids under bidendate-chelation assistance is developed. This method provides an efficient approach to acyoxy-substituted arenes with a broad range of functional… read more here.
Keywords: carboxylic acids; cross dehydrogenative; coupling aryl; dehydrogenative coupling ... See more keywords
Photoinduced Transition-Metal-Free Cross-Coupling of Aryl Halides with H-Phosphonates.
Sign Up to like & getrecommendations! Published in 2019 at "Organic letters"
DOI: 10.1021/acs.orglett.8b04081
Abstract: Photoinduced transition-metal- and photosensitizer-free cross-coupling of aryl halides (including Ar-Cl, Ar-Br, and Ar-I) with H-phosphonates (including dialkyl phosphonates and diarylphosphine oxides) is reported. Various functional groups were tolerated, including ester, methoxy, dimethoxy, alkyl, phenyl, trifluoromethyl,… read more here.
Keywords: transition metal; photoinduced transition; free cross; coupling aryl ... See more keywords
Nickel-Catalyzed Cross-Coupling of Aryl Redoxactive Esters with Aryl Zinc Reagents
Sign Up to like & getrecommendations! Published in 2019 at "ACS Catalysis"
DOI: 10.1021/acscatal.9b02913
Abstract: A nickel-catalyzed aryl–aroyloxyl C(sp2)–O radical cross-coupling reaction conducted using a redox active ester with aryl zinc reagent was developed. This method demonstrates a new disconnection ap... read more here.
Keywords: coupling aryl; aryl zinc; catalyzed cross; nickel catalyzed ... See more keywords
Palladium-catalyzed synthesis of 4-cyclohexylmorpholines from reductive coupling of aryl ethers and lignin model compounds with morpholines
Sign Up to like & getrecommendations! Published in 2021 at "Green Chemistry"
DOI: 10.1039/d0gc03188g
Abstract: This work describes the highly efficient Pd-catalyzed direct coupling of aryl ethers (including the typical lignin model compounds) and morpholines to produce 4-cyclohexylmorpholines, a useful class of fine chemicals. Without employing any acidic additives, various… read more here.
Keywords: aryl ethers; model compounds; compounds morpholines; coupling aryl ... See more keywords