Brønsted Acid-Catalyzed (4 + 3) Cyclization of N, N'-Cyclic Azomethine Imines with Isatoic Anhydrides.
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DOI: 10.1021/acs.orglett.8b03604
Abstract: A Brønsted acid-catalyzed (4 + 3) cyclization of N, N'-cyclic azomethine imines with isatoic anhydrides has been discovered, which constructs seven-membered nitrogenous heterocyclic frameworks with overall high yields (up to 98% yield). This reaction represents… read more here.
Keywords: cyclic azomethine; isatoic anhydrides; cyclization; azomethine imines ... See more keywords