Issue 24, 2018

Halo-substituted benzenesulfonyls and benzenesulfinates: convenient sources of arenes in metal-catalyzed C–C bond formation reactions for the straightforward access to halo-substituted arenes

Abstract

Palladium-catalyzed reactions using aryl halides as one of the coupling partners represent a very popular method for generating carbon–carbon bonds. However, such couplings suffer from important limitations. As most palladium catalysts are very effective for the cleavage of C–halo bonds (Halo = Cl, Br or I), in many cases, the presence of several halide functional groups on arenes is not tolerated. Since two decades, and especially during the last few years, a new class of coupling partners, benzenesulfonyl and benzenesulfinate derivatives, has emerged as a powerful alternative to aryl halides for the Pd-catalyzed C–C bond formation, as the reactions performed with these substrates generally tolerate C–halo bonds. With these substrates, after a metal-catalyzed desulfitative coupling, a variety of halo-substituted arenes such as biaryls, styrenes, phenylacetylenes, acetophenones, benzonitriles… has been synthesized with high chemoselectivities. The use of these aryl sources allowed the synthesis of molecules containing several halo-substituents including iodo-substituents in only a few steps and provides very simple access to a very wide variety of halo-substituted arenes useful to materials chemists and also to biochemists. In this review, we will summarize the scope of the use of halo-substituted benzenesulfonyls and benzenesulfinates as coupling partners in metal-catalyzed C–C bond formation.

Graphical abstract: Halo-substituted benzenesulfonyls and benzenesulfinates: convenient sources of arenes in metal-catalyzed C–C bond formation reactions for the straightforward access to halo-substituted arenes

Article information

Article type
Review Article
Submitted
14 Mrt. 2018
Accepted
09 Mei 2018
First published
09 Mei 2018

Org. Biomol. Chem., 2018,16, 4399-4423

Halo-substituted benzenesulfonyls and benzenesulfinates: convenient sources of arenes in metal-catalyzed C–C bond formation reactions for the straightforward access to halo-substituted arenes

H. Li, A. Sasmal, X. Shi, J. Soulé and H. Doucet, Org. Biomol. Chem., 2018, 16, 4399 DOI: 10.1039/C8OB00632F

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