Dearomatizing spirocyclization reactions are very appealing synthetic strategies to
generate functionalized three-dimensional scaffolds from simple two-dimensional precursors.
Recently, the field of transition-metal-catalyzed dearomatizing spirocyclization reactions
of indolyl ynones has burgeoned, as the construction of synthetically challenging
quaternary spirocyclic carbons is easily achieved. In this review, we introduce an
overview of advances in the transition-metal-catalyzed dearomatizing spirocyclization
reactions of indolyl ynones, with the reactions being categorized according to type
of catalyst.
Key words
transition-metal catalysis - indolyl ynones - dearomatization - spirocyclization -
spirocyclic indolenines