Search Results - "Ravelli, Davide"

Hydrogen Atom Transfer (HAT): A Versatile Strategy for Substrate Activation in Photocatalyzed Organic Synthesis by Capaldo, Luca, Ravelli, Davide

“…The adoption of hydrogen atom transfer (HAT) in a photocatalytic approach, in which an excited catalyst is responsible for substrate activation, offers unique…”
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Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C–H Bonds Elaboration by Capaldo, Luca, Ravelli, Davide, Fagnoni, Maurizio

“…Direct photocatalyzed hydrogen atom transfer (d-HAT) can be considered a method of choice for the elaboration of aliphatic C–H bonds. In this manifold, a…”
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Carbon–Carbon Bond Forming Reactions via Photogenerated Intermediates by Ravelli, Davide, Protti, Stefano, Fagnoni, Maurizio

“…The present review offers an overview of the current approaches for the photochemical and photocatalytic generation of reactive intermediates and their…”
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Decatungstate as Direct Hydrogen Atom Transfer Photocatalyst for SOMOphilic Alkynylation by Capaldo, Luca, Ravelli, Davide

“…A versatile approach for the alkynylation of a variety of aliphatic hydrogen donors, including alkanes, is reported. We used tetrabutylammonium decatungstate…”
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Decatungstate Anion for Photocatalyzed “Window Ledge” Reactions by Ravelli, Davide, Protti, Stefano, Fagnoni, Maurizio

“…The majority of organic reactions are commonly carried out inside a lab, under a fume hood. A particular case is that of photochemical reactions, a field where…”
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Photoinduced Multicomponent Reactions by Garbarino, Silvia, Ravelli, Davide, Protti, Stefano, Basso, Andrea

“…The combination of multicomponent approaches with light‐driven processes opens up new scenarios in the area of synthetic organic chemistry, where the need for…”
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Site-Selective C–H Functionalization by Decatungstate Anion Photocatalysis: Synergistic Control by Polar and Steric Effects Expands the Reaction Scope by Ravelli, Davide, Fagnoni, Maurizio, Fukuyama, Takahide, Nishikawa, Tomohiro, Ryu, Ilhyong

“…The synergistic control of the SH2 transition states of hydrogen abstraction by polar and steric effects provides a promising strategy in achieving…”
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The Dark Side of Photocatalysis: One Thousand Ways to Close the Cycle by Capaldo, Luca, Ravelli, Davide

“…Photocatalytic strategies have recently revolutionized the field of organic synthesis. However, while the progress has been impressive in terms of reported…”
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Visible Light Uranyl Photocatalysis: Direct C–H to C–C Bond Conversion by Capaldo, Luca, Merli, Daniele, Fagnoni, Maurizio, Ravelli, Davide

“…Uranyl nitrate hexahydrate performs as an efficient photocatalyst in the direct C–H to C–C bond conversion under blue light irradiation via hydrogen atom…”
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C(sp 3 )–H functionalizations of light hydrocarbons using decatungstate photocatalysis in flow by Laudadio, Gabriele, Deng, Yuchao, van der Wal, Klaas, Ravelli, Davide, Nuño, Manuel, Fagnoni, Maurizio, Guthrie, Duncan, Sun, Yuhan, Noël, Timothy

“…Using hydrocarbons as reagents Adding small alkyl groups to complex molecules usually relies on alkyl halide reagents. Laudadio et al. now report a convenient…”
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Photocatalysis for the Formation of the C−C Bond by Fagnoni, Maurizio, Dondi, Daniele, Ravelli, Davide, Albini, Angelo

“…Photocatalysis can be used as a tool to reduce the use of hazardous substances in producing a carbon-carbon bond. The photochemical reactions eliminate the…”
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Acyl Radicals from Acylsilanes: Photoredox-Catalyzed Synthesis of Unsymmetrical Ketones by Capaldo, Luca, Riccardi, Riccardo, Ravelli, Davide, Fagnoni, Maurizio

“…Acyl radicals were smoothly generated from acylsilanes under photoredox-catalyzed conditions. These radicals were formed upon ultraviolet B (UV-B), solar, or…”
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Photocatalytic CH Activation by Hydrogen-Atom Transfer in Synthesis by Protti, Stefano, Fagnoni, Maurizio, Ravelli, Davide

“…This minireview encompasses the most recent (since 2010) advancements in the field of photocatalytic hydrogen‐atom transfer (HAT) processes for CH bond…”
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Vinylpyridines as Building Blocks for the Photocatalyzed Synthesis of Alkylpyridines by Capaldo, Luca, Fagnoni, Maurizio, Ravelli, Davide

“…The photocatalyzed addition of several hydrogen donors (ethers, aldehydes, alkanes, amides) onto vinylpyridines was achieved. This approach provided access to…”
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Selective C(sp3)−H Aerobic Oxidation Enabled by Decatungstate Photocatalysis in Flow by Laudadio, Gabriele, Govaerts, Sebastian, Wang, Ying, Ravelli, Davide, Koolman, Hannes F., Fagnoni, Maurizio, Djuric, Stevan W., Noël, Timothy

“…A mild and selective C(sp3)−H aerobic oxidation enabled by decatungstate photocatalysis has been developed. The reaction can be significantly improved in a…”
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Decatungstate Photocatalyzed Acylations and Alkylations in Flow via Hydrogen Atom Transfer by Bonassi, Filippo, Ravelli, Davide, Protti, Stefano, Fagnoni, Maurizio

“…A set of atom‐economical radical conjugate addition reactions of alkyl and acyl radicals onto electron‐poor olefins or diisopropyl azodicarboxylate has been…”
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Smooth Photocatalyzed Benzylation of Electrophilic Olefins via Decarboxylation of Arylacetic Acids by Capaldo, Luca, Buzzetti, Luca, Merli, Daniele, Fagnoni, Maurizio, Ravelli, Davide

“…Arylacetic acids were used as sources of benzyl radicals under tetrabutylammonium decatungstate photocatalyzed conditions for the benzylation of electron-poor…”
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Decatungstate-Photocatalyzed Si−H/C−H Activation in Silyl Hydrides: Hydrosilylation of Electron-Poor Alkenes by Qrareya, Hisham, Dondi, Daniele, Ravelli, Davide, Fagnoni, Maurizio

“…Tetrabutylammonium decatungstate has been used for the photocatalytic activation of the Si−H bond in trisubstituted silanes and applied for the hydrosilylation…”
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Unraveling the Key Features of the Reactive State of Decatungstate Anion in Hydrogen Atom Transfer (HAT) Photocatalysis by Waele, Vincent De, Poizat, Olivier, Fagnoni, Maurizio, Bagno, Alessandro, Ravelli, Davide

“…The decatungstate anion [W10O32]4– is a widely used photocatalyst for promoting hydrogen atom transfer (HAT) reactions. The mechanism implicated in the…”
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Photoredox-Catalyzed Generation of Acetonyl Radical in Flow: Theoretical Investigation and Synthetic Applications by Anselmo, Manuel, Basso, Andrea, Protti, Stefano, Ravelli, Davide

“…A hydrogen atom transfer (HAT) step from acetone allowed the smooth generation of acetonyl radical that was then exploited as synthon in the mild formation of…”
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