Nature Communications (Dec 2019)
Hyperconjugative aromaticity and protodeauration reactivity of polyaurated indoliums
Abstract
Hyperconjugative aromaticity combines the concepts of hyperconjugation and aromaticity and explains cyclopentadiene stability. Here, the authors demonstrate extended hyperconjugative aromaticity in a metallated indole ring, which shows extended electron conjugation due to the dual hyperconjugation.