Switchable Cascade C-H Annulation To Polycyclic Pyryliums And Pyridiniums: Discovering Mitochondria-Targeting Fluorescent Probes
CHEMICAL COMMUNICATIONS(2020)
摘要
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.
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关键词
polycyclic pyryliums,pyridiniums,fluorescent,mitochondria-targeting
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