Fig. 1: Searching for new benzene-related proaromatic structures.
From: Bicyclo[2.2.0]hexene derivatives as a proaromatic platform for group transfer and chemical sensing
a Proaromatic CHDs. b Bicyclo[2.2.0]hexene (BCH): proaromaticity via valence isomerism (this work). Utility of BCHs are demonstrated in catalytic group transfer reactions and AIE-active chemical sensing.
