An unprecedented use of trifluoromethanesulfonyl hydrazides as effective SCF sources has been established in the sulfenylation of indoles. A range of substituted indoles participated in CuCl-catalyzed oxidative sulfenylation reaction with TfNHNHBoc in the presence of dimethyl sulfoxide to furnish structurally diverse 3-indolyl trifluoromethyl thioethers in moderate to good yields with very high regioselectivity.
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| http://dx.doi.org/10.1039/c8cc04600j | DOI Listing |
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