Readily Accessible and Predictable Naphthalene-Based Two-Photon Fluorophore with Full Visible-Color Coverage

Iron-Catalyzed Synthesis, Structure, and Photophysical Properties of Tetraarylnaphthidines

We describe the synthesis and photophysical properties of tetraarylnaphthidines. Our synthetic approach is based on an iron-catalyzed oxidative C-C coupling reaction as the key step using a hexadecafluorinated iron-phthalocyanine complex as a catalyst and air as the sole oxidant. The N,N,N',N'-tetraarylnaphthidines proved to be highly fluorescent with quantum yields of up to 68%.

Dicyanovinyl substituted push–pull chromophores: effects of central CC/phenyl spacers, crystal structures and application in hydrazine sensing

The distinctive effect of the CC bond and the phenyl bridge on the photophysical and chemical properties of D–π–A molecular systems has been comparatively investigated.

A fast-response two-photon fluorescent probe for imaging endogenous H2O2 in living cells and tissues

As a second messenger, hydrogen peroxide plays significant roles in numerous physiological and pathological processes and is related to various diseases including inflammatory disease, diabetes, neurodegenerative disorders, cardiovascular disease and Alzheimer's disease. Two-photon (TP) fluorescent probes reported for the detection of endogenous H₂O₂ are rare and most have drawbacks such as slow response and low sensitivity. In this report, we demonstrate a simple H₂O₂-specific TP fluorescent probe (TX-HP) containing a two-photon dye 6-hydroxy-2,3,4,4a-tetrahydro-1H-xanthen-1-one (TX) on the modulation of the ICT process. The probe exhibits a rapid fluorescent response to H₂O₂ in 9min with both high sensitivity and selectivity. The probe can detect exogenous H₂O₂ in living cells. Furthermore, the probe is successfully utilized for imaging H₂O₂ in liver tissues.

TBHP-promoted direct oxidation reaction of benzylic Csp3–H bonds to ketones

A metal-free oxidation system employingtert-butyl hydroperoxide (TBHP) has been developed for selective oxidation of structurally diverse benzylic sp³C–H bonds.