The reaction of aromatic amides containing a 5-chloro-8-aminoquinoline moiety as the directing group with arylsulfonyl chlorides in the presence of Ni(OTf)2 as the catalyst results in sulfonylation at the ortho-position. Various arylsulfonyl chlorides can be used as the coupling partners.
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Yokota et al. (2015) studied this question.
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