Dication Disulfuranes as Photoactivatable Sources of Radical Organocatalysts DOI Open Access

Kun‐Long Song,

Ricardo Meyrelles, Guillaume Pilet

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 4, 2024

Abstract The recent development of photoredox and energy transfer catalysis has led to a significant expansion visible‐light‐driven chemical transformations. These methods have demonstrated exceptional efficiency in converting wide range substrates into radical intermediates generating open‐shell catalytic species. However, the simplification systems direct generation highly reactive organocatalysts through visible‐light irradiation from stable precatalysts remains largely an unrealized goal. This challenge is mainly due limited availability that are responsive visible light. Herein, we introduce new class bench‐stable dicationic disulfuranes, which release thiyl radicals upon blue‐light excitation. Spectroscopic computational studies reveal this reactivity arises combination structural features intermolecular interactions. family molecules been employed catalyze cascades previously incompatible with conditions, enabling efficient formation 1,2‐dioxolanes 1,3‐hydroxyketones excellent yields short reaction times.

Язык: Английский

Dication Disulfuranes as Photoactivatable Sources of Radical Organocatalysts DOI Open Access

Kun‐Long Song,

Ricardo Meyrelles, Guillaume Pilet

и другие.

Angewandte Chemie, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 4, 2024

Abstract The recent development of photoredox and energy transfer catalysis has led to a significant expansion visible‐light‐driven chemical transformations. These methods have demonstrated exceptional efficiency in converting wide range substrates into radical intermediates generating open‐shell catalytic species. However, the simplification systems direct generation highly reactive organocatalysts through visible‐light irradiation from stable precatalysts remains largely an unrealized goal. This challenge is mainly due limited availability that are responsive visible light. Herein, we introduce new class bench‐stable dicationic disulfuranes, which release thiyl radicals upon blue‐light excitation. Spectroscopic computational studies reveal this reactivity arises combination structural features intermolecular interactions. family molecules been employed catalyze cascades previously incompatible with conditions, enabling efficient formation 1,2‐dioxolanes 1,3‐hydroxyketones excellent yields short reaction times.

Язык: Английский

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