One-carbon oxidative annulations of 1,3-enynes by catalytic C–H functionalization and 1,4-rhodium(III) migrationTools Dooley, Johnathon D. and Lam, Hon Wai (2018) One-carbon oxidative annulations of 1,3-enynes by catalytic C–H functionalization and 1,4-rhodium(III) migration. Chemistry - A European Journal, 24 (16). pp. 4050-4054. ISSN 1521-3765
AbstractRhodium(III)-catalyzed C-H functionalization-oxidative annulations of aromatic substrates with 1,3-enynes that contain allylic hydrogen atoms cis to the alkyne are described. The key step in these reactions is an alkenyl-to-allyl 1,4-rhodium(III) migration to give electrophilic pi-allylrhodium(III) species. Nucleophilic trapping of these species gives heterocycles such as benzopyrans, isobenzofuranones, and isoindolinones.
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