Issue 10, 2016

Photoredox-mediated Minisci C–H alkylation of N-heteroarenes using boronic acids and hypervalent iodine

Abstract

A photoredox-mediated Minisci C–H alkylation reaction of N-heteroarenes with alkyl boronic acids is reported. A broad range of primary and secondary alkyl groups can be efficiently incorporated into various N-heteroarenes using [Ru(bpy)3]Cl2 as photocatalyst and acetoxybenziodoxole as oxidant under mild conditions. The reaction exhibits excellent substrate scope and functional group tolerance, and offers a broadly applicable method for late-stage functionalization of complex substrates. Mechanistic experiments and computational studies suggest that an intramolecularly stabilized ortho-iodobenzoyloxy radical intermediate might play a key role in this reaction system.

Graphical abstract: Photoredox-mediated Minisci C–H alkylation of N-heteroarenes using boronic acids and hypervalent iodine

Associated articles

Supplementary files

Article information

Article type
Edge Article
Submitted
17 Jun 2016
Accepted
08 Jul 2016
First published
12 Jul 2016
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry
Creative Commons BY license

Chem. Sci., 2016,7, 6407-6412

Photoredox-mediated Minisci C–H alkylation of N-heteroarenes using boronic acids and hypervalent iodine

G. Li, C. A. Morales-Rivera, Y. Wang, F. Gao, G. He, P. Liu and G. Chen, Chem. Sci., 2016, 7, 6407 DOI: 10.1039/C6SC02653B

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

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