Articles with "silver catalyzed" as a keyword



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Sequential Silver‐Catalyzed Oxidative Cyclization Reactions of Unprotected 2‐Alkynylanilines to Anthranils

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Published in 2017 at "European Journal of Organic Chemistry"

DOI: 10.1002/ejoc.201601600

Abstract: The full details of the original Ag-catalyzed domino oxidative cyclization reactions of unprotected 2-alkynylanilines with Oxone are described. The influences of several parameters including the substrate features, oxidant, reaction conditions, and catalyst on the reaction… read more here.

Keywords: silver catalyzed; reactions unprotected; cyclization reactions; unprotected alkynylanilines ... See more keywords
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Mechanistic study on silver-catalyzed direct amination of unactivated CH bond

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Published in 2017 at "Journal of Organometallic Chemistry"

DOI: 10.1016/j.jorganchem.2017.01.006

Abstract: Abstract A systematic investigation has been conducted into the mechanism for the silver-catalyzed direct amination of unactivated C H bonds in triflamides by density functional theory (DFT). The present work is in favor of the… read more here.

Keywords: silver catalyzed; direct amination; mechanistic study; amination unactivated ... See more keywords
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Silver-catalyzed efficient synthesis of enaminones from propargyl alcohols and amines

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Published in 2017 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2017.09.054

Abstract: Abstract Enaminones are used as the key intermediates to construct heterocyclic compounds with various bioactivities. In this study, a simple and efficient approach for the synthesis of enaminones via amination of propargyl alcohols was developed.… read more here.

Keywords: silver catalyzed; propargyl alcohols; efficient synthesis; catalyzed efficient ... See more keywords
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Silver(I) catalyzed intermolecular alkene carbo-alkoxylation through cleavage of allylic ether C–O bond

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Published in 2020 at "Tetrahedron Letters"

DOI: 10.1016/j.tetlet.2020.151895

Abstract: Abstract All rights reserved. First example of allylic ether’s dimerization reaction was developed through olefin’s C–O bond insertion via Ag(I) catalysis. Other aromatic olefins, such as styrene and its electro-poor analogues could participate to provide… read more here.

Keywords: silver catalyzed; allylic ether; catalyzed intermolecular; bond ... See more keywords
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Silver-Catalyzed C-H Aryloxydifluoromethylation and Arylthiodifluoromethylation of Heteroarenes.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c01826

Abstract: The oxidative C-H aryloxydifluoromethylation and arylthiodifluoromethylation of heteroaromatic compounds through the decarboxylation of easily accessible aryloxydifluoroacetic acids and arylthiodifluoroacetic acids, respectively, are disclosed. These reactions are promoted by the combination of catalytic AgNO3 and Selectfluor… read more here.

Keywords: silver catalyzed; aryloxydifluoromethylation arylthiodifluoromethylation; arylthiodifluoromethylation heteroarenes; aryloxydifluoromethylation ... See more keywords
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Silver-Catalyzed Cascade Cyclization Reaction of Isocyanides with Sulfoxonium Ylides: Synthesis of 3-Aminofurans and 4-Aminoquinolines.

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Published in 2020 at "Organic letters"

DOI: 10.1021/acs.orglett.0c02835

Abstract: A silver-catalyzed cascade cyclization reaction of isocyanides with sulfoxonium ylides has been developed for the first time. This reaction provides a new and efficient method for the construction of highly functionalized 3-aminofurans and 4-aminoquinolines from… read more here.

Keywords: silver catalyzed; reaction isocyanides; cascade cyclization; cyclization reaction ... See more keywords
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Silver-Catalyzed Carbon Dioxide Fixation on Alkynylindoles.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.0c03250.s001

Abstract: A silver-catalyzed carbon dioxide fixation reaction into 2-alkynylindole derivatives was developed to afford tricyclic indoles. Carbon dioxide was selectively fixed on the N atom of the indole, and only 6-endo-dig cyclization proceeded under mild reaction… read more here.

Keywords: dioxide fixation; carbon; carbon dioxide; silver catalyzed ... See more keywords
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Silver-Catalyzed Trifluoromethoxylation of Aziridines.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.1c04226

Abstract: We disclose a silver-catalyzed trifluoromethoxylation of N-tosyl aziridines with trifluoromethyl arylsulfonate. The protocol is characterized by its mild conditions, simple operations, and good chemo- and regioselectivity. In addition, the trifluoromethoxylation of trisubstituted aziridines could construct… read more here.

Keywords: catalyzed trifluoromethoxylation; trifluoromethoxylation; chemistry; silver catalyzed ... See more keywords
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Silver(I)-Catalyzed Reductive Cross-Coupling of Aldehydes to Structurally Diverse Cyclic and Acyclic Ethers.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c00270

Abstract: A range of medium-sized cyclic ethers (5 to 11 membered) have been effectively synthesized through intramolecular reductive coupling of dialdehydes initiated by 50 ppm to 0.5% of AgNTf2 with hydrosilane at 25 °C. The catalytic… read more here.

Keywords: reductive cross; cross coupling; coupling aldehydes; catalyzed reductive ... See more keywords
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Silver-Catalyzed Controlled Intermolecular Cross-Coupling of Silyl Enol Ethers: Scalable Access to 1,4-Diketones

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Published in 2022 at "Organic Letters"

DOI: 10.1021/acs.orglett.2c01477

Abstract: A protocol for silver-catalyzed controlled intermolecular cross-coupling of silyl enolates is disclosed. The protocol displays good functional group tolerance and allows efficient preparation of a series of synthetically useful 1,4-diketones. Preliminary mechanistic investigations suggest that… read more here.

Keywords: catalyzed controlled; cross coupling; coupling silyl; intermolecular cross ... See more keywords

Simultaneous Construction of C-N Axial and Central Chirality via Silver-Catalyzed Desymmetrizative [3 + 2] Cycloaddition of Prochiral N-Aryl Maleimides with Activated Isocyanides.

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Published in 2022 at "Organic letters"

DOI: 10.1021/acs.orglett.2c01761

Abstract: Herein, we report an unprecedented strategy for the simultaneous construction of a remote C-N stereogenic axis and three contiguous stereogenic carbon centers via silver-catalyzed desymmetrizative [3 + 2] cycloaddition of prochiral N-aryl maleimides with activated… read more here.

Keywords: catalyzed desymmetrizative; simultaneous construction; via silver; silver catalyzed ... See more keywords