Palladium-catalyzed allylic C-H alkylation of terminal olefins with 3-carboxamide oxindoles

Organic & Biomolecular Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A novel palladium-catalyzed allylic C-H alkylation of terminal olefins with 3-carboxamide oxindoles is described. variety new 3-carboxamide-3-allylation an all-carbon quaternary center were obtained in moderate to good yields (up 99%). In addition, the asymmetric version this reaction was also explored, providing enantioselectivity.

Язык: Английский

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Carbonylative five-component synthesis of amides and esters with α-quaternary carbon center

Chinese Chemical Letters, Год журнала: 2025, Номер unknown, С. 111150 - 111150

Опубликована: Март 1, 2025

Язык: Английский

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Porous CuBi₂O₄ Photocathode with Intrinsic Cu⁺/Cu²⁺ Redox Improves Solar C(sp³)‐H Bond Conversion Efficiency by an Order of Magnitude

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 31, 2025

Abstract Selective C‐H activation is the most important step for organic molecule transformation. Photocatalytic radicals driven considered a promising route but suffers from simultaneously utilizing electron/hole pairs which are limited to broad‐band gap semiconductors. Herein, half‐photocathodic reaction strategy demonstrated activate and oxygenate C(sp 3 )‐H bonds of toluene toward selective benzaldehyde production using narrow‐bandgap CuBi 2 O 4 (CBO) porous photocathode. The intrinsic Cu + /Cu 2+ redox CBO photocathode catalyzes photocathodic oxygen reductive H generate ·OH capable oxidation activates bond that further oxygenated via ·O − formed reduction. As result, selectivity up 90%. Impressively, narrow‐band enables record‐high light‐driven yields 111.93 mmol m −2 h −1 with stability over 20 h. This work opens green efficient by

Язык: Английский

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Emerging trends in CO carbonylation

Chem, Год журнала: 2025, Номер unknown, С. 102503 - 102503

Опубликована: Апрель 1, 2025

Язык: Английский

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