TEMPO‐Mediated Cross‐Dehydrogenative Coupling for the Synthesis of Bis(indolyl)methanes
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DOI: 10.1002/ajoc.202400484
Abstract: A TEMPO‐oxidized method has been developed for the synthesis of bis(indolyl)‐methane derivatives by the cross‐dehydrogenative coupling between C(sp3)–H of para‐cresol derivatives and C(sp2)‐H of indoles in moderate yields under aqueous conditions. This approach has significant… read more here.
Keywords: cross dehydrogenative; dehydrogenative coupling; synthesis bis; bis indolyl ... See more keywords
Dehydrogenative Coupling Reaction for the Synthesis of 5‐ and 6‐Heterocyclic Derivatives including Arylquinolin‐2(1H)‐ones
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DOI: 10.1002/ajoc.202400728
Abstract: Heterocycle synthesis is an intense research area due to their significant importance in pharmaceutical, material chemistry and fine synthesis. Key innovations include transition metal‐based‐catalyzed heterocyclic derivatives synthesis, which facilitates diverse structural modifications, enhances selectivities and… read more here.
Keywords: chemistry; heterocyclic derivatives; coupling reaction; reaction synthesis ... See more keywords
Synthesis of Pyrimidines and Quinazolines via Acceptorless Dehydrogenative Coupling Catalysed by PNN‐Pd Complex
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DOI: 10.1002/ajoc.202500165
Abstract: Herein, we report the catalytic application of PdIIPNN [PNN: 2,6‐{(R2P)N(H)(C5H3N)(C2HN3C6H5)}] (L1 R = Ph; L2 R = tBu) pincer complexes (Pd1–Pd4) for the sustainable and cost‐effective synthesis of pharmacologically important pyrimidines and quinazolines by acceptorless… read more here.
Keywords: pnn; acceptorless dehydrogenative; pyrimidines quinazolines; synthesis ... See more keywords
Binuclear Ruthenium (II) Catalyzed Selective α‐Alkenylation of Amide via Acceptorless Dehydrogenative Coupling of Alcohols
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DOI: 10.1002/aoc.70411
Abstract: Herein, we report an effective catalytic methodology for the construction of α,β‐unsaturated amides via acceptorless dehydrogenative coupling (ADC) of alcohols using newly synthesized binuclear ruthenium (II) complex [(η6‐p‐cymene)2Ru2Cl2(μ‐L)] (where L = N′‐4‐fluoro benzoyl‐4‐fluorobenzohydrazide) as catalyst. The structural… read more here.
Keywords: ruthenium; via acceptorless; acceptorless dehydrogenative; alkenylation amide ... See more keywords
Recent Developments in Transition Metal‐Catalyzed Cross‐Dehydrogenative Coupling Reactions of Ethers and Thioethers
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DOI: 10.1002/cctc.201800582
Abstract: Cross‐dehydrogenative coupling of two C−H bonds or a C−H and an X−H bond (X=N, O, P, S, etc.) has emerged as a powerful new synthetic methodology in the last 12 years. Using this approach, simple ethers,… read more here.
Keywords: transition metal; cross dehydrogenative; developments transition; metal catalyzed ... See more keywords
Phosphine Ligand‐Free Ruthenium Complexes as Efficient Catalysts for the Synthesis of Quinolines and Pyridines by Acceptorless Dehydrogenative Coupling Reactions
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DOI: 10.1002/cctc.201900435
Abstract: A series of phosphine‐free Ru(III)/Ru(II) complexes of NH functionalized N˄N˄N pincer ligands exhibit excellent activity for acceptorless dehydrogenative coupling (ADC) of secondary alcohols with 2‐aminobenzyl or γ‐amino alcohols to quinolines and pyridines. Ru(III) complexes [LRuCl3]… read more here.
Keywords: acceptorless dehydrogenative; iii complexes; pyridin; quinolines pyridines ... See more keywords
Chemodivergent Dehydrogenative Coupling of Alcohols by 3d Metal Catalysts
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DOI: 10.1002/cctc.202301558
Abstract: Chemodivergent synthesis by transition metal catalysts is a straightforward and sustainable approach to achieving valuable organic compounds. Especially, the chemodivergent dehydrogenative couplings of alcohols with organic motifs to develop various saturated and unsaturated compounds are… read more here.
Keywords: alcohols metal; coupling alcohols; metal catalysts; chemodivergent dehydrogenative ... See more keywords
Base‐Promoted Regioselective Synthesis of α‐Amino BODIPYs through Cross‐Dehydrogenative Coupling with Anilines
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DOI: 10.1002/ejoc.202400660
Abstract: The construction of C‐N bond at the α‐position of BODIPYs (boron dipyrromethene) not only enables flexible reactivity but also leads to strong electron‐donating properties. In this study, a base‐promoted oxidative cross‐dehydrogenative coupling was developed to… read more here.
Keywords: amino bodipys; cross dehydrogenative; bodipys; dehydrogenative coupling ... See more keywords
Palladium‐Catalyzed Dehydrogenative Coupling Reaction of Terminal Alkynes with Unactivated Alkenes
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DOI: 10.1002/jccs.201700268
Abstract: Terminal alkynes having a bulky substituent dehydrogenatively couple with unactivated terminal alkenes with catalysis of palladium. The terminal sp carbon forms a bond with the internal sp2 carbon of the alkene regioselectively to produce branched,… read more here.
Keywords: catalyzed dehydrogenative; reaction terminal; coupling reaction; terminal alkynes ... See more keywords
A Heterogeneous Single Atom Cobalt Catalyst for Highly Efficient Acceptorless Dehydrogenative Coupling Reactions.
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DOI: 10.1002/smll.202207941
Abstract: A fundamental understanding of metal active sites in single-atom catalysts (SACs) is important and challenging in the development of high-performance catalyst systems. Here, a highly efficient and straightforward molten-salt-assisted approach is reported to create atomically… read more here.
Keywords: cobalt; catalyst; single atom; highly efficient ... See more keywords
Dehydrogenative Coupling of Toluene Promoted by Multi-Walled Carbon Nanotubes
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DOI: 10.1007/s10562-019-02951-z
Abstract: Abstract We report here the formation of carbon–carbon bonds via carbon-hydrogen bond activation catalysed by multi-walled carbon nanotubes (mwcnts), the catalytic activity of which is influenced by nanocarbon morphology and structure. Control of nanocarbon defects… read more here.
Keywords: carbon; walled carbon; carbon nanotubes; coupling toluene ... See more keywords