Au-Containing All-Carbon 1,4-Dipoles: Generation and [4 + 2] Annulation in the Formation of Carbo-/Heterocycles

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Abstract

A novel concept of Au-containing all-carbon 1,n-dipoles is advanced. From 1-(1-alkynyl)cyclopropyl ketones, Au-containing all-carbon 1,4-dipoles are presumably generated in situ and can efficiently participate in [4 + 2] annulation with dipolarophiles including indoles, various carbonyl compounds, imines, and silyl enol ethers. Polycyclic, fully substituted furans are readily synthesized under mild reaction conditions.

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