Unveiling the potency of a phenalenyl-based photocatalyst for intramolecular dehydrogenative lactonization‡

文献情報

出版日 2023-11-07

DOI 10.1039/D3QO01662E

インパクトファクター 5.281

著者

Partha Pratim Sen, Vishali Pathania, Sudipta Raha Roy

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要旨

Here, an intramolecular dehydrogenative lactonization reaction has been accomplished by combining a phenalenyl-based organic photocatalyst and a Co(III) co-catalyst. Due to its extremely high excited state redox potential, the phenalenyl motif could directly oxidise carboxylic acid derivatives to generate carboxyl free radicals without the assistance of an external base. This protocol allows access to multiple 4-aryl-2H-chromen-2-ones by using the external oxidant K2S2O8 and shows diverse functional group tolerance for biaryl-2-carboxylic acids. Moreover, the reaction was performed on a bulk scale with a very good yield.

掲載誌

Organic Chemistry Frontiers

CiteScore: 7.8

自己引用率: 8.7%

年間論文数: 724

Organic Chemistry Frontiers publishes high-quality research from across organic chemistry. Emphases are placed on studies that make significant contributions to the field of organic chemistry by reporting either new or significantly improved protocols or methodologies. Topics include, but are not limited to the following: Organic synthesis Development of synthetic methodologies Catalysis Natural products Functional organic materials Supramolecular and macromolecular chemistry Physical and computational organic chemistry

Unveiling the potency of a phenalenyl-based photocatalyst for intramolecular dehydrogenative lactonization‡

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