Xingyu Chen, Lipeng Yan, Yanhong Liu, Yudong Yang and Jingsong You
Chem. Commun., 2020,56, 15080-15083
DOI:
10.1039/D0CC06997C,
Communication
Disclosed herein is a counterion additive-switched rhodium-catalyzed cascade triple C–H annulation of 4-hydroxy-1-naphthaldehydes with alkynes, in which six chemical bonds are formed in one-pot. This reaction enables the rapid assembly of diverse polycyclic pyrylium and pyridinium fluorophores, which leads to two specific mitochondria-labeling reagents with low cytotoxicity and superior photostability.
