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Synthesis 2024; 56(24): 3785-3792
DOI: 10.1055/s-0040-1720134
DOI: 10.1055/s-0040-1720134
paper
Recent Advancements in the Chemistry of Diazo Compounds
Synthesis of 3-Substituted Chromones through Photoactivation of Acceptor–Acceptor Diazo Compounds
P.K. thanks DST-SERB for the project fellowship. A.K. is thankful to the Council of Scientific and Industrial Research, India (CSIR) for providing the research fellowship. We sincerely acknowledge the Department of Science & Technology-Science & Engineering Research Board (DST-SERB), New Delhi for the financial support (Project ref. No.: SPF/2023/000085).


Abstract
We report the photocatalytic alkylation of o-hydroxyarylenaminones with acceptor–acceptor diazo compounds to access 3-alkyl chromones. The reaction involves triplet sensitization of the diazo substrate via energy transfer from the photosensitizer. The notable features of the protocol are operational simplicity, wide substrate scope, and generally high yields of the products.
Key words
o-hydroxyarylenaminone - A–A diazo compounds - energy transfer - triplet carbine - alkyl chromoneSupporting Information
- Supporting information for this article is available online at https://doi.org/10.1055/s-0040-1720134.
- Supporting Information
Publication History
Received: 19 July 2024
Accepted after revision: 08 August 2024
Article published online:
04 September 2024
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