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   Articles with "catalyzed selective" as a keyword



Synthesis of 5‐Arylselenyluracils via Bromide‐Catalyzed Selective C(sp2)‐H Selenylation of Uracils

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recommendations! Published in 2025 at "Asian Journal of Organic Chemistry"

DOI: 10.1002/ajoc.202500415

Abstract: Herein, an efficient method for the synthesis of 5‐arylselenyluracils via bromide‐catalyzed selective C(sp2)‐H selenylation of uracils using boronic acid and elemental selenium as the selenyl source was successfully developed. This method proceeded smoothly for a… read more here.

Keywords: arylselenyluracils via; bromide catalyzed; catalyzed selective; via bromide ... See more keywords
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Bioorthogonal Metalloporphyrin‐Catalyzed Selective Methionine Alkylation in the Lanthipeptide Nisin

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recommendations! Published in 2019 at "Chembiochem"

DOI: 10.1002/cbic.201800493

Abstract: Bioorthogonal catalytic modification of ribosomally synthesized and post‐translationally modified peptides (RiPPs) is a promising approach to obtaining novel antimicrobial peptides with improved properties and/or activities. Here, we present the serendipitous discovery of a selective and… read more here.

Keywords: metalloporphyrin catalyzed; bioorthogonal metalloporphyrin; catalyzed selective; lanthipeptide nisin ... See more keywords

Nucleophilic RhI Catalyzed Selective Isomerization of Terminal Aziridines to Enamides

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recommendations! Published in 2020 at "ChemCatChem"

DOI: 10.1002/cctc.202000597

Abstract: The selective isomerization of various terminal N‐Boc protected aziridines to enamides was realized using the highly reactive nucleophilic rhodium catalyst C with the Lewis acid LiNTf2 as co‐catalyst under moderate conditions. The reaction proceeds smoothly… read more here.

Keywords: rhi catalyzed; nucleophilic rhi; catalyzed selective; aziridines enamides ... See more keywords

Nickel‐Catalyzed Selective Hydrazoarenes and Aminoarenes Formation from Azoarenes Using Ammonia–Borane

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recommendations! Published in 2025 at "ChemCatChem"

DOI: 10.1002/cctc.202501005

Abstract: Herein, we report the synthesis of an air‐stable, phosphine‐free NNN‐based nickel(II) pincer complex that catalyzed the generation of diverse hydrogenated products from azoarenes using ammonia borane (AB) as a transfer hydrogenating source, facilitating at room… read more here.

Keywords: ammonia borane; using ammonia; catalyzed selective; nickel catalyzed ... See more keywords

Ag-Catalyzed selective fluorination of 6-substituted 2-amionpyrazines

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recommendations! Published in 2019 at "Journal of Fluorine Chemistry"

DOI: 10.1016/j.jfluchem.2018.12.003

Abstract: Abstract The fluorination of 6-substituted 2-aminopyrazines with Selectfluor in the presence of Ag2CO3 is established under mild conditions. This method selectively produced the fluorinated 2-aminopyrazine derivatives in fair to high yield. The regioselectivity of this… read more here.

Keywords: fluorination substituted; substituted amionpyrazines; chemistry; fluorination ... See more keywords
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Iron-catalyzed selective oxidative arylation of phenols and biphenols

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recommendations! Published in 2017 at "Tetrahedron"

DOI: 10.1016/j.tet.2017.03.094

Abstract: Abstract The single-step synthesis of protected fucols and unnatural polyaryls by biomimetic oxidative cross-coupling between phenolic components and 1,3,5-trimethoxybenzene catalyzed by FeCl3 in fluorinated solvents is reported. The regioselectivity (ortho, meta or para) and the… read more here.

Keywords: oxidative arylation; catalyzed selective; arylation phenols; iron catalyzed ... See more keywords
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Palladium-catalyzed selective ortho C–H alkoxylation at 4-aryl of 1, 4-disubstituted 1, 2, 3-triazoles

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recommendations! Published in 2020 at "Tetrahedron"

DOI: 10.1016/j.tet.2020.130985

Abstract: Abstract The ortho- C–H bonds at C(4)-aryl of 1, 4-disubstituted 1, 2, 3-triazoles were regioselectively alkoxylated in good to excellent yields with under the directing of the triazole ring. Some products were found to exhibit… read more here.

Keywords: disubstituted triazoles; catalyzed selective; ortho alkoxylation; selective ortho ... See more keywords

Iron-catalyzed δ-selective conjugate addition of methyl and cyclopropyl Grignard reagents to α,β,γ,δ-unsaturated esters and amides

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recommendations! Published in 2019 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2018.12.043

Abstract: Abstract Iron-catalyzed δ-selective conjugate addition of methyl and cyclopropyl Grignard reagents to α,β,γ,δ-unsaturated esters and amides took place in good yields to give products exclusively with cis-β,γ-olefinic bond. read more here.

Keywords: iron catalyzed; conjugate addition; methyl cyclopropyl; selective conjugate ... See more keywords
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Rh(I)-Catalyzed C6-Selective Decarbonylative Alkylation of 2-Pyridones with Alkyl Carboxylic Acids and Anhydrides.

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recommendations! Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c01277

Abstract: A Rh-catalyzed chelation-assisted C6-selective C-H activation/alkylation of 2-pyridones with readily available alkyl carboxylic acids or anhydrides is introduced. The reaction proceeds via substrate decarbonylation. This approach merges C-H functionalization with readily available anhydrides, allowing for… read more here.

Keywords: alkyl carboxylic; catalyzed selective; carboxylic acids; alkylation pyridones ... See more keywords

Rhodium-Catalyzed Selective C(sp2)-H Activation/Annulation of tert-Butyl Benzoyloxycarbamates with 1,3-Diynes: A One Step Access to Alkynylated Isocoumarins and Bis-Isocoumarins.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01901

Abstract: We report here a Rh(III) catalyzed regio- and stereoselective synthesis of alkynylated and bis-isocoumarin from 1,3-dialkyne. Exclusive one-pot formation of 3,3-bis-isocoumarin isomers has been achieved by eliminating several other possibilities. This is the first example… read more here.

Keywords: bis isocoumarin; selective sp2; rhodium catalyzed; sp2 activation ... See more keywords

Gold(I)-Catalyzed Selective Hydroarylation of Indoles with Haloalkynes.

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recommendations! Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01921

Abstract: A highly regio- and stereoselective synthesis of a Z-alkenyl indole via the gold-catalyzed addition of an indole to a haloalkyne was developed. In the presence of gold catalyst SIPrAuCl and cocatalyst NaBARF, a broad range… read more here.

Keywords: hydroarylation; selective hydroarylation; indoles haloalkynes; hydroarylation indoles ... See more keywords