Arylation of α‐Imino Ketones and their Cyclization with Allenoates: Direct Access to Sterically Hindered Pyrroles

Asian Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 28, 2025

Abstract Herein, we report a calcium‐catalyzed, one‐pot, four‐component reaction to synthesize diversely substituted pyrroles. This atom‐economy involves sequence of reactions that proceed via in situ formation α ‐ imino ketones, Friedel‐Crafts arylation, aza‐cyclization, and aromatization the single pot. The showed broad substrate scope with good yields. We demonstrated gram‐scale synthesis post‐synthetic modifications.

Язык: Английский

Rh(III)-Catalyzed Redox-Neutral C–H Activation/Annulation of Oxadiazolones with Sulfoxonium Ylides to access oxadiazoloisoquinolinone

New Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Oxadiazolone-fused isoquinolines were synthesized via Rh( iii )-catalyzed [4+2] annulation and C–H activation, followed by acymethylation products with antidiabetic anti-inflammatory potential.

Язык: Английский

Acetoxy allenoates as emerging synthons in annulation/cycloaddition reactions

Chemical Communications, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The emergence of acetoxy allenoates as versatile synthons to generate a plethora annulation/cycloaddition products via electrophilic diene–phosphonium/ammonium intermediates is highlighted in this feature article.

Язык: Английский