Rahman P, Chakraborty N, Patel BK, Rajbongshi KK. Iodine-Promoted Sulfoximidation of Cinnamic Acids via Oxidative C═C Bond Cleavage.
J Org Chem 2024;
89:10472-10484. [PMID:
39008892 DOI:
10.1021/acs.joc.4c00585]
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Abstract
An iodine-promoted C═C bond cleavage with concomitant decarboxylation and cross-coupling between cinnamic acids and NH-sulfoximines has been developed. This reaction proceeds via selective C═C bond cleavage, followed by decarboxylation and oxidative sulfoximidation. This metal- and base-free protocol involves dioxygen as the source of oxygen, which is facilitated by tert-butyl hydroperoxide (TBHP) as the oxidant affording N-aroylated sulfoximines with good functional group tolerance and good yields.
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