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Organophotoredox-Catalyzed Direct C-H Amination of 2H-Indazoles with Amines

Sukanya Neogi, Asim Kumar Ghosh, Koushik Majhi, Sadhanendu Samanta, Golam Kibriya and Alakananda Hajra*

*Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India, Email:

S. Neogi, A. K. Ghosh, K. Majhi, S. Samanta, G. Kibriya, A. Hajra, Org. Lett., 2020, 22, 5605-5609.

DOI: 10.1021/acs.orglett.0c01973

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An organophotoredox-catalyzed oxidative coupling enables a general and practical C-H amination of 2H-indazoles with a series of amines including aliphatic primary amines, secondary amines, azoles, and sulfoximines at room temperature under ambient air conditions.

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Fluorination of 2H-Indazoles Using N-Fluorobenzenesulfonimide

P. Ghosh, A. Hajra, J. Org. Chem., 2021, 86, 10883-10888.

Key Words

2H-indazoles, organocatalysis, photochemistry

ID: J54-Y2020