
Green Synthesis and Catalysis, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Green Synthesis and Catalysis, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 1, 2024
Language: Английский
Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(18), P. 12300 - 12309
Published: April 24, 2024
Metallaphotoredox cross-coupling is a well-established strategy for generating clinically privileged aliphatic scaffolds via single-electron reactivity. Correspondingly, expanding metallaphotoredox to encompass new C(
Language: Английский
Citations
21Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(19)
Published: Feb. 28, 2024
Abstract We report a general, intramolecular cycloisomerization of unactivated olefins with pendant nucleophiles. The reaction proceeds under mild conditions and tolerates ethers, esters, protected amines, acetals, pyrazoles, carbamates, arenes. It is amenable to N ‐, O as well C ‐nucleophiles, yielding number different heterocycles including, but not limited to, pyrrolidines, piperidines, oxazolidinones, lactones. Use both benzothiazinoquinoxaline organophotocatalyst Co‐salen catalyst obviates the need for stoichiometric oxidant or reductant. showcase utility protocol in late‐stage drug diversification synthesis several small natural products.
Language: Английский
Citations
19Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(25), P. 17296 - 17310
Published: June 14, 2024
Asymmetric hydrogenation of activated olefins using transition metal catalysis is a powerful tool for the synthesis complex molecules, but traditional catalysts have difficulty with enantioselective reduction electron-neutral, electron-rich, and minimally functionalized olefins. Hydrogenation based on radical, metal-catalyzed hydrogen atom transfer (mHAT) mechanisms offers an outstanding opportunity to overcome these difficulties, enabling mild challenging selectivity that complementary hydrogenations H2. Further, mHAT presents asymmetric induction through cooperative (cHAT) chiral thiols. Here, we report insights from mechanistic study iron-catalyzed achiral cHAT reaction leverage deliver stereocontrol Kinetic analysis variation silane structure point hydride iron as likely rate-limiting step. The data indicate selectivity-determining step quenching alkyl radical by thiol, which becomes more potent H donor when coordinated iron(II). resulting iron(III)–thiolate in equilibrium other species, including FeII(acac)2, shown be predominant off-cycle species. enantiodetermining nature thiol trapping enables net commercially available glucose-derived catalyst up 80:20 enantiomeric ratio. To best our knowledge, this first demonstration via mHAT. These findings advance understanding act proof principle development reactions.
Language: Английский
Citations
9Chemical Science, Journal Year: 2024, Volume and Issue: 15(36), P. 14865 - 14871
Published: Jan. 1, 2024
A novel photoinduced Co/Ni-cocatalyzed Markovnikov hydroarylation of unactivated alkenes with aryl bromides by using proton as a hydrogen source has been developed for the first time.
Language: Английский
Citations
4Chem, Journal Year: 2024, Volume and Issue: 10(10), P. 3088 - 3099
Published: June 19, 2024
Language: Английский
Citations
3Organic Letters, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
We report intramolecular photocatalyzed cycloisomerization of unactivated olefins with pendant nucleophiles. The reaction proceeds under mild conditions and utilizes guanidines, ureas, isoureas, isothioureas, carbonates to yield several different five-, six-, seven-membered heterocycles. Use benzothiazinoquinoxaline as an organophotocatalyst cobalt–salen catalyst obviates the need for a stoichiometric oxidant or reductant.
Language: Английский
Citations
0Journal of Chemical Education, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 7, 2025
Language: Английский
Citations
0Trends in Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 1, 2025
Language: Английский
Citations
0Nature Catalysis, Journal Year: 2025, Volume and Issue: unknown
Published: May 21, 2025
Language: Английский
Citations
0Applied Catalysis A General, Journal Year: 2025, Volume and Issue: unknown, P. 120379 - 120379
Published: May 1, 2025
Language: Английский
Citations
0