A Boradiazaindacene‐Based Turn‐On Fluorescent Probe for Cyanide Detection in Aqueous Media

Abstract

Turn on events: A molecular probe consisting of a boradiazaindacene unit conjugated with a dicyano-vinyl group has been designed for the selective and sensitive detection of cyanide by strong fluorescence enhancement in aqueous media (see scheme).

A turn-on fluorescence chemosensor for Al3+, F− and CN− ions, and its application in cell imaging

“…It is well known that many chemosensors for separate detection of Al 3+ , [18][19][20][21] F - [22][23] and CN - [24][25][26] have been reported. But a few bifunctional chemosensors can selectively detect Al 3+ and CN -, [27,28] Al 3+ and F -, [29,30] and F -and CN - [31,32] simultaneously.…”

Organocatalytic Fluorogenic Synthesis of Chromenes

“…In contrast to compound 1 [6, 13, 37], its isomer 2 is strongly fluorescent [36, 38]. The direct interaction of the dicyano alkene group with the pyrrole moiety increases the length of the conjugated system, which leads to red shifted absorption and emission spectra, but also to lower reactivity because the electron rich BODIPY donates some electron density to the Michael acceptor group.…”

“…Compounds 1 and 2 have been used as a fluorescent turn-on and turn-off probes, respecetively, for the detection of cyanide in solution [37, 38]. To the best of our knowledge there is no report about the application of compounds 1 and 2 in organocatalytic synthetic reactions.…”

“…In compound 1 the fluorescence is strongly quenched by a photo induced electron transfer mechanism [37]. The BODIPY part of the molecule acts as an electron donor [39, 40], the dicyanoalkene as the electron acceptor.…”

A Biocompatible Colorimetric Triphenylamine- Dicyanovinyl Conjugated Fluorescent Probe for Selective and Sensitive Detection of Cyanide Ion in Aqueous Media and Living Cells

“…In recent years, some fluorescent probes with dicyanovinyl moieties for detecting cyanide anions have been reported [42,43,44,45,46,47]. Consequently, we hypothesized that triphenylamine-based thiophene dicyanovinyl compounds could be applied to selectively detect cyanide anion.…”