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Issue 9, 2017
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A unified strategy for silver-, base-, and oxidant-free direct arylation of C–H bonds

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Abstract

Here, we report a dual catalytic approach for room temperature direct arylation of C–H bonds with aryldiazonium salts as a simple aryl group donor, also working as an internal oxidant via C–N2 bond cleavage. This unified strategy has been achieved by the synergistic combination of visible-light metal-free photoredox and palladium catalysis under silver-, base- and/or additive-free conditions. The broad substrate scope, functional group tolerance, excellent regioselectivity and redox-neutral conditions of this process make it attractive for the effective synthesis of a wide range of important N-heterocyclic commodities such as dibenzo[b,d]azepine, carbazole and phenanthridine.

Graphical abstract: A unified strategy for silver-, base-, and oxidant-free direct arylation of C–H bonds

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Publication details

The article was received on 13 Dec 2016, accepted on 04 Apr 2017 and first published on 04 Apr 2017


Article type: Communication
DOI: 10.1039/C6GC03438A
Citation: Green Chem., 2017,19, 2111-2117
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    A unified strategy for silver-, base-, and oxidant-free direct arylation of C–H bonds

    M. K. Sahoo, S. P. Midya, V. G. Landge and E. Balaraman, Green Chem., 2017, 19, 2111
    DOI: 10.1039/C6GC03438A

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