Articles with "catalyzed three" as a keyword



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FeCl3-catalyzed three-component aryl-selenylation of alkenes

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Published in 2021 at "Tetrahedron"

DOI: 10.1016/j.tet.2021.132239

Abstract: Abstract FeCl3-catalyzed three-component aryl-selenylation of alkenes with good to excellent yields has been disclosed. This method is characterized by synthesis of complicated products in a single-step reaction, simple operation and readily available commercially reagents. Finally,… read more here.

Keywords: fecl3 catalyzed; aryl selenylation; three component; catalyzed three ... See more keywords
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Nickel-Catalyzed Three-Component Reductive Alkylacylation of Electron-Deficient Activated Alkenes.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c03210

Abstract: Herein, we present a nickel-catalyzed three-component reductive alkylacylation of electron-deficient activated alkenes with tertiary alkyl bromides and acid anhydrides. This method enables the efficient preparation of a variety of ketones with broad substrate scope and… read more here.

Keywords: alkylacylation electron; catalyzed three; component reductive; three component ... See more keywords
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Visible-Light-Driven Photoredox-Catalyzed Three-Component Radical Cyanoalkylfluorination of Alkenes with Oxime Esters and a Fluoride Ion.

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Published in 2021 at "Organic letters"

DOI: 10.1021/acs.orglett.1c02686

Abstract: A metal-free, photoredox-catalyzed three-component cyanoalkylfluorination of alkenes under mild and redox-neutral conditions is reported. This protocol features use of readily available alkenes, oxime esters, and cost-effective nucleophilic fluoride reagents, giving diverse cyanoalkylfluorinated products with generally… read more here.

Keywords: catalyzed three; three component; cyanoalkylfluorination; photoredox catalyzed ... See more keywords
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Nickel-Catalyzed Three-Component Alkylacylation of Alkenes Enabled by a Photoactive Electron Donor-Acceptor Complex.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01237

Abstract: An electron donor-acceptor complex-enabled, nickel-catalyzed three-component net-reductive 1,2-alkylacylation of alkenes is developed. This conjunctive reductive acyl cross-coupling process obviates the use of an exogenous photocatalyst and a stoichiometric metal-based reductant, affording various synthetically useful 1,3-dicarbonyl… read more here.

Keywords: electron donor; nickel catalyzed; catalyzed three; donor acceptor ... See more keywords
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Palladium-Catalyzed Three-Component Selective Aminoallylation of Diazo Compounds.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01399

Abstract: We describe a Xantphos-containing dinuclear palladium complex-enabled geminal aminoallylation of diazocarbonyl compounds, which selectively provides a range of quaternary α-amino esters. Direct N-H insertion, allylic alkylation of amino nucleophiles, and diene formation were not observed… read more here.

Keywords: component selective; aminoallylation; palladium catalyzed; catalyzed three ... See more keywords
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Synthesis of Trisubstituted Chromanes by Lewis-Base-Catalyzed Three-Component Electrophilic Thiofunctionalization of Cyclopropene with Phenols via a Formal [3 + 3] Annulation.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c02072

Abstract: A Lewis-base-catalyzed three-component electrophilic thiofunctionalization of cyclopropene with phenol is developed to furnish various trisubstituted chromanes in high trans-diasteroselectivity. This metal-free protocol is easy to scale-up, offers a unique 2,2,3-substitution pattern, and delivers chromanes with… read more here.

Keywords: lewis base; component electrophilic; electrophilic thiofunctionalization; catalyzed three ... See more keywords
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Synthesis of 1,1,4,5-Tetrasubstituted Phthalans via Pd-Catalyzed Three-Component Reactions of Haloarenes, Alkynes, and Protic Nucleophiles.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c03460

Abstract: A novel approach for the synthesis of 1,1,4,5-tetrasubstituted phthalans is developed via a tandem palladium-catalyzed Sonogashira coupling/propargyl-allenyl isomerization/pentadehydro-Diels-Alder cyclization/regioselective nucleophilic addition sequence. The reaction shows good functional tolerance and provides a wide variety of substituted… read more here.

Keywords: phthalans via; tetrasubstituted phthalans; synthesis tetrasubstituted; via catalyzed ... See more keywords
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Controllable Stereoselective Synthesis of (Z)- and (E)-Homoallylic Alcohols Using a Palladium-Catalyzed Three-Component Reaction.

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Published in 2017 at "Organic letters"

DOI: 10.1021/acs.orglett.7b02979

Abstract: Diastereoselective synthesis of (Z)- and (E)-homoallylic alcohols using a Pd-catalyzed three-component reaction of 3-(pinacolatoboryl)allyl benzoates, aldehydes, and aryl stannanes was developed, which provides an alternative method for the allylboration of aldehydes using α,γ-diaryl-substituted allylboronates. Both… read more here.

Keywords: synthesis homoallylic; catalyzed three; homoallylic alcohols; three component ... See more keywords
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Copper(I)-Catalyzed Three-Component Click/Persulfuration Cascade: Regioselective Synthesis of Triazole Disulfides.

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Published in 2018 at "Organic letters"

DOI: 10.1021/acs.orglett.8b01002

Abstract: A copper(I)-catalyzed three-component CuAAC/persulfuration reaction providing rapid access to asymmetric triazole disulfides has been developed. The interrupted click reaction shows broad substrate scope, complete regioselectivity, and excellent functional group tolerability. read more here.

Keywords: triazole disulfides; persulfuration; catalyzed three; three component ... See more keywords
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Cu(I)-Catalyzed Three-Component Reaction of Diazo Compound with Terminal Alkyne and Nitrosobenzene for the Synthesis of Trifluoromethyl Dihydroisoxazoles.

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Published in 2018 at "Organic letters"

DOI: 10.1021/acs.orglett.8b01981

Abstract: A Cu(I)-catalyzed three-component reaction of terminal alkynes, trifluoromethyl diazo compounds, and nitrosoarenes was developed. With this method, a series of trifluoromethyl-substituted dihydroisoxazoles were effectively synthesized in high yields under mild reaction conditions. This transformation is… read more here.

Keywords: catalyzed three; three component; reaction; trifluoromethyl ... See more keywords
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Silver-Catalyzed Three-Component Route to Trifluoromethylated 1,2,3-Triazolines Using Aldehydes, Amines, and Trifluorodiazoethane.

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Published in 2019 at "Organic letters"

DOI: 10.1021/acs.orglett.9b01159

Abstract: A novel silver-catalyzed domino three-component synthetic route to trifluoromethyl-substituted 1,2,3-triazolines has been realized by employing 2,2,2-trifluorodiazoethane as a 1,3-dipole for the cycloaddition reaction with the Schiff base formed from aldehydes and amines. This step and… read more here.

Keywords: silver catalyzed; component route; catalyzed three; three component ... See more keywords