Dalai PG, Swain S, Mohapatra S, Panda N. Metal-Free C-H Sulfamidation of 1,4-Naphthoquinone in Water.
J Org Chem 2023;
88:13760-13770. [PMID:
37676688 DOI:
10.1021/acs.joc.3c01409]
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Abstract
Direct sulfamidation of 1,4-naphthoquinones using N-methoxy sulfonamides under metal-free conditions in water was developed. Base-mediated nucleophilic addition of N-methoxy sulfonamides, followed by N-O bond cleavage allowed the formation of enesulfonamides. Further, the synthesis of pyrrolonaphthoquinones proved the practicability of the current approach.
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