Recent advances in the (3+2) cycloaddition of azomethine ylide

New Journal of Chemistry, Journal Year: 2023, Volume and Issue: 47(19), P. 8997 - 9034

Published: Jan. 1, 2023

We have tried to demonstrate [3+2] cycloaddition of azomethine ylides for the synthesis several bioactive compounds. Different methodologies, including metal-catalyzed as well metal-free asymmetric and racemic synthesis, been explained.

Language: Английский

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Visible‐Light‐Mediated Cycloaddition of Azobenzenes and Nonstabilized Azomethine Ylides to Access 1,2,4‐Triazolidines

Advanced Synthesis & Catalysis, Journal Year: 2023, Volume and Issue: 365(23), P. 4303 - 4309

Published: Oct. 24, 2023

Abstract A visible‐light‐mediated cycloaddition of azobenzenes and nonstabilized azomethine ylides has been developed to access 1,2,4‐triazolidines. With readily available organic dye rose bengal as a photocatalyst alkyl tertiary amines precursors for ylides, the reaction proceeded smoothly under visible light irradiation at room temperature, affording various 4‐alkyl‐1,2‐diaryl‐1,2,4‐triazolidines with yields up 96%. Preliminarily mechanistic studies suggest that are formed in situ through photoredox catalysis.

Language: Английский

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Recent advances in the synthesis of highly substituted imidazolidines

RSC Advances, Journal Year: 2024, Volume and Issue: 14(42), P. 30758 - 30806

Published: Jan. 1, 2024

In this highlight, recent advances in the synthesis of highly substituted imidazolidines, chiral imidazolidines with high diastereoselectivities and enantioselectivities, bis-imidazolidines, spiro-imidazolidines are presented.

Language: Английский

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