Mn(OAc)3-Promoted Sulfonation-Cyclization Cascade via the SO3- Radical: The Synthesis of Heterocyclic Sulfonates.
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DOI: 10.1021/acs.orglett.2c03510
Abstract: Herein we reported a Mn(OAc)3ยท2H2O promoted radical sulfonation from functionalized alkenes and potassium metabisulfite (K2S2O5). The reaction realized the construction of oxindole, quinolinone, isoquinoline-1,3-dione, or benzoxazine structural fragments and the introduction of sulfonic moieties in… read more here.
Keywords: sulfonation cyclization; oac promoted; sulfonation; cyclization cascade ... See more keywords