A Metal-Catalyzed Tunable Reaction of Ylides with Hydroxylamine Derivatives

Organic Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 25, 2025

In this work, a tunable reaction of metal acyl nitrene with ylides is reported for the divergent synthesis enamides and α,α-dicarbonyl phosphorus ylides. The featured mild conditions, good efficiency, broad generality. particular, resulting could be structurally elaborated into potential useful scaffolds. Mechanism investigation suggests that formation was ascribed to nucleophilic substitution ferric sulfur It believed represents an initial example preparing from iron-catalyzed transfer.

Language: Английский

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Photoredox/Iron Dual-Catalysis-Enabled [4 + 2] Cyclization of Acyl Nitrene with Alkynes

Organic Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 13, 2024

In this work, the annulation of acyl nitrene with alkynes is reported under photoredox/iron dual-catalysis for synthesis a series isoquninalin-2-ones. The reaction featured high regioselectivity and good generality. particular, resulting isoquinalin-2-ones could be structurally elaborated into several biologically interesting scaffolds. Mechanism investigation suggests that was ascribed to formal [4 + 2] cyclization. It believed represents an initial example preparing isoquinolin-1-ones from ferric peroxyl-catalyzed insertion.

Language: Английский

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Spin Crossover and Its Application in Organometallic Catalysis: Concepts and Recent Progress

Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 15, 2024

Spin crossover is one of the most important properties open-shell metal complexes. In organometallic catalytic reactions, catalysts can alter reaction kinetics by spin crossover, i. e., accelerating or hindering progression, as well altering pathways, modulating selectivity promoting new reactions. This personal account outlines introduction and development concepts such "two-state reactivity" involving proposes a concept, "spin-responsive catalysis" to summarize processes in which effects are present. Finally, electronic mechanism role changing path regulating introduced taking two recent typical iron-catalyzed reactions recently reported our group examples.

Language: Английский

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Thianthrenium salts to arynes: base promoted C‐N bond construction

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 18, 2024

Abstract Amines are widely found in natural products, drugs and pesticides. We have proposed a base‐promoted method for synthesizing polysubstituted aromatic amines. The reaction does not necessitate the involvement of transition metals, provided that an equivalent base is employed. In this process, aryl thianthrenium salt serves as precursor to arynes, which subsequently distorted by induction effect different substituents. attack amine nucleophiles results formation series multi‐substituted products.

Language: Английский

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In-situ poly(hexahydrotriazine) gels temporary plugging agent suitable for high-temperature reservoirs: Regulation by inorganic chloride salts

Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 239, P. 212905 - 212905

Published: May 9, 2024

Language: Английский

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