Synlett
DOI: 10.1055/a-2705-8764
Letter
Published as part of the Special Issue dedicated to Prof. S. Chandrasekaran on his 80th birthday

Heterobenzylic C(sp3)─H Acylation of Isoindolinones via Photoinduced Intermolecular Hydrogen Atom Transfer Strategy

Autoren

  • Karthick Muthuvel

    Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
  • Chandrasekaran Sivaraj

    Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India
  • Thirumanavelan Gandhi

    Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore, Tamil Nadu, India

Funding Information The Department of Science and Technology-SERB, India (CRG/2021/001143) and the Seed grant-SG20210167, Vellore Institute of Technology, Vellore.
Gefördert durch: Vellore Institute of Techmology SG20210167
Gefördert durch: Council of Scientific and Industrial Research (CSIR), New Delhi, India 09/0844(18215)/2024-EMR-I


Graphical Abstract

Abstract

Heterobenzylic C(sp3)−H functionalization of isoindolinones remains challenging yet highly desirable. Herein, we present a photo-induced hydrogen atom transfer (HAT) strategy for heterobenzylic C(sp3)−H acylation of isoindolinones using acyl azolium salts under mild reaction conditions. This metal-free protocol offers excellent functional group compatibility and avoids the usage of Lewis acids or oxidants, providing a sustainable and efficient approach to C–H acylation.



Publikationsverlauf

Eingereicht: 12. Juni 2025

Angenommen nach Revision: 28. August 2025

Accepted Manuscript online:
19. September 2025

Artikel online veröffentlicht:
24. Oktober 2025

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