作者:Alexandre Pradal、Patrick Y. Toullec、Véronique Michelet
DOI:10.1021/ol202577c
日期:2011.11.18
A variety of nonactivated hindered aromatic rings are acyloxylated (22 examples, up to 83% yield) in the presence of PPh3AuCl as the catalyst and di(acetoxy)iodobenzene as the oxidant. The reaction proceeds at 110 degrees C in an acid media and allows the formation of both hindered acetoxy and acyloxy derivatives. This methodology nicely complements the Pd-catalyzed arene acyloxylation reaction, which is not operating on hindered substrates and allows the Au-catalyzed unprecedented acyloxylation reaction of arenes, implying various carboxylic acids.
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作者:Blackstock,D.J. et al.
DOI:——
日期:——
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作者:Eberson, Lennart、Oberrauch, Ermanno
DOI:——
日期:——
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