Alkoxymigration onto α‐Imino Gold Carbenes for Constructing Propellane‐Type Indolines

Abstract

AbstractWe developed a new reaction entity of α‐imino gold carbenes involving alkoxy migration. The reaction would proceed through oxonium ylide formation by intramolecular addition of an alkoxy group, carbon‐oxygen bond cleavage, and carbon−carbon bond formation. We achieved an efficient gold‐catalyzed synthesis of indoline‐propellanes via a one‐pot sequence by using ethylene glycol as a trapping reagent.