Photoinduced Copper‐Catalyzed Cross‐Coupling of Acylsilanes with Heteroarenes via Bimetallic Relay
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DOI: 10.1002/advs.202409457
Abstract: The transition metal‐catalyzed direct coupling reactions involving electron‐rich Fischer carbene species are largely underdeveloped and remain a big challenge. Here, a direct coupling reaction of azoles and azine N‐oxides is reported with Fischer copper carbene… read more here.
Keywords: relay; photoinduced copper; carbene species; catalyzed cross ... See more keywords
Copper(I)‐Catalyzed Cascade Dearomatization of Tryptophols with 3‐Indolylphenyliodonium Salts
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DOI: 10.1002/ajoc.201600626
Abstract: A copper(I)-catalyzed intermolecular cascade dearomatization reaction of 2-substituted tryptophols with 3-indolylphenyliodonium salts has been developed. This approach provided a direct and general access to versatile furoindolines with two quaternary stereogenic centers in good to excellent… read more here.
Keywords: indolylphenyliodonium salts; tryptophols indolylphenyliodonium; copper catalyzed; cascade dearomatization ... See more keywords
Copper(I)‐Catalyzed Enantioselective Synthesis of Chiral Cyclohexenylallenes and Transfer of Axial to Center Chirality by Ytterbium(III) Catalyzed [4+2] Cycloaddition
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DOI: 10.1002/ajoc.202300665
Abstract: Chiral cyclohexenylallenes are readily accessed from 1‐enynes, aldehydes and chiral secondary amines in good yields (up to 79% yield) with excellent enantioselectivities (up to 99% ee), through CuI catalyzed the formation of chiral propargylamine intermediates. … read more here.
Keywords: enantioselective synthesis; catalyzed enantioselective; catalyzed cycloaddition; copper catalyzed ... See more keywords
Copper‐Catalyzed Synthesis of Sulfinic Esters via Oxidative Coupling of Thiols or Disulfides with Alcohols
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DOI: 10.1002/ajoc.202400131
Abstract: The copper‐catalyzed coupling of thiols with alcohols was achieved under air atmosphere. The reaction proceeded smoothly in the presence of a base such as Cs2CO3 or Rb2CO3 affording sulfinic esters in good yields. Furthermore, disulfides… read more here.
Keywords: catalyzed synthesis; sulfinic esters; copper catalyzed; coupling thiols ... See more keywords
Practical Access to Trisubstituted Morita‐Baylis‐Hillman‐Type Products Through Copper‐catalyzed Reductive Aldol Reactions of Alkynones
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DOI: 10.1002/ajoc.202400422
Abstract: We report a convenient and diastereoselective copper‐catalyzed reductive alkynone aldol addition to aldehydes, with pinacolborane as stoichiometric reductant, that results in the generation of densely functionalized, trisubstituted (Z)‐enone products analogous to Morita‐Baylis‐Hillman adducts. We demonstrate… read more here.
Keywords: aldol; practical access; morita baylis; baylis hillman ... See more keywords
Commercial Copper‐Catalyzed Aerobic Oxidative Synthesis of 4H‐3,1‐Benzoxazine and Their Effects on Anti‐inflammatory Genes Expression
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DOI: 10.1002/ajoc.202400609
Abstract: A facile green synthesis of the anti‐inflammatory gene expression of 4H‐3,1‐benzoxazine was developed under a commercial copper catalytic system. Benzoxazines were synthesized from 2‐aminobenzyl alcohols and aromatic aldehydes including heterocyclic aromatic aldehydes using an economical… read more here.
Keywords: commercial copper; synthesis; copper catalyzed; benzoxazine ... See more keywords
Copper‐Catalyzed Oxidative Esterification and Amidation of Benzylic Hydrocarbons
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DOI: 10.1002/ajoc.202500137
Abstract: A new and efficient methodology has been developed using a Copper‐DMAP complex to perform C‐O and C‐N bond‐forming cross‐coupling reactions. The catalyst enables atom‐economic esterification, amidation, and sulfamidation of benzylic C‐H bonds using benzoic acids,… read more here.
Keywords: esterification amidation; esterification; copper catalyzed; catalyzed oxidative ... See more keywords
Copper(I)‐Catalyzed Four‐Component Interrupted Click/Amination: Efficient Synthesis of Fully Substituted 5‐Amino‐1,2,3‐Triazoles
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DOI: 10.1002/ajoc.70253
Abstract: A copper(I)‐catalyzed four‐component interrupted click/amination cascade reaction for the efficient synthesis of various 5‐amino‐1,2,3‐triazoles has been developed. The key step in this reaction is the interception of the in situ‐formed cuprate‐triazole intermediate with O ‐benzoylhydroxylamine.… read more here.
Keywords: catalyzed four; component; component interrupted; copper catalyzed ... See more keywords
Copper(I)‐Catalyzed CuAIAC/Allylation Cascade: Modular Synthesis of Fully Substituted Allyl N,N′ ‐Bicyclic Pyrazolidinones
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DOI: 10.1002/ajoc.70272
Abstract: A copper(I)‐catalyzed CuAIAC/allylation cascade reaction exploiting alkynes, azomethine imines, and allyl bromides has been developed for providing rapid access to fully substituted allyl N,N ′‐bicyclic pyrazolidinones, involving the formation of C(sp 2 )–C(sp 3 )… read more here.
Keywords: catalyzed cuaiac; cuaiac allylation; substituted allyl; fully substituted ... See more keywords
External Base‐Free Approach for Copper‐Catalyzed N‐Arylation of Indoles and Pyrroles in Green Reaction Medium
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DOI: 10.1002/aoc.7966
Abstract: N‐Arylated heterocyclic molecules are extensively found as key components in numerous pharmaceutical and agrochemical compounds. Herein, inexpensive 1,10‐phenanthroline‐assisted copper‐catalyzed sustainable greener methodology has been developed for N‐arylation of indoles and pyrrole under commercial base and… read more here.
Keywords: reaction; chemistry; arylation indoles; base ... See more keywords
Photoinduced Copper‐Catalyzed Three‐Component Radical Carboamination of Styrene Derivatives
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DOI: 10.1002/cctc.202401234
Abstract: The catalytic three‐component radical carboamination of alkenes has recently emerged as an alternative and robust platform for the rapid construction of diverse and valuable amines. Despite great advances in this field, new methods that enable… read more here.
Keywords: catalyzed three; radical carboamination; three component; copper catalyzed ... See more keywords