Volume 60, Issue 16 pp. 8772-8780
Communication

Iron-Catalyzed Radical Activation Mechanism for Denitrogenative Rearrangement Over C(sp3)–H Amination

Satyajit Roy

Satyajit Roy

Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014 U.P., India

Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005 India

These authors contributed equally to this work.

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Sandip Kumar Das

Sandip Kumar Das

Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014 U.P., India

These authors contributed equally to this work.

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Hillol Khatua

Hillol Khatua

Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014 U.P., India

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Subrata Das

Subrata Das

Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014 U.P., India

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Prof. Dr. Krishna Nand Singh

Prof. Dr. Krishna Nand Singh

Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, 221005 India

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Prof. Dr. Buddhadeb Chattopadhyay

Corresponding Author

Prof. Dr. Buddhadeb Chattopadhyay

Division of Molecular Synthesis & Drug Discovery, Centre of Bio-Medical Research (CBMR), SGPGIMS Campus, Raebareli Road, Lucknow, 226014 U.P., India

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First published: 19 January 2021
Citations: 43

Graphical Abstract

An iron-catalyzed rearrangement of 1,2,3,4-tetrazole is developed over the competitive C(sp3)–H amination. This catalytic rearrangement follows an unprecedented metalloradical activation mechanism. Employing the developed method, a wide number of complex-N-heterocyclic product classes have been accessed.

Abstract

An iron-catalyzed denitrogenative rearrangement of 1,2,3,4-tetrazole is developed over the competitive C(sp3)–H amination. This catalytic rearrangement reaction follows an unprecedented metalloradical activation mechanism. Employing the developed method, a wide number of complex-N-heterocyclic product classes have been accessed. The synthetic utility of this radical activation method is showcased with the short synthesis of a bioactive molecule. Collectively, this discovery underlines the progress of radical activation strategy that should find wide application in the perspective of medicinal chemistry, drug discovery and natural product synthesis research.

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