Chemodosimeter for fluoride ions based on F⁻-triggered Si–O cleavage followed by the deprotonation/autoxidation of secondary nitrile C–H group

A selective chromofluorogenic chemodosimeter for fluoride ions based on distyrylbenzenes derivatives containing dual Si–O groups

“…A chloromethyl ethyl ether (EOMCl)‐protected 4‐hydroxybenzaldehyde ( 3 ) was prepared in 87% yield using a classical hydroxyl‐protected procedure . 1,4‐Bis(diethylphosphonylmethyl)‐benzene ( 4 ), prepared by the Arbuzov reaction with 1,4‐bis(chloromethyl)benzene ( 2 ), was coupled with ethoxymethoxy (EOM)‐substituted benzaldehyde ( 3 ) to afford 5 in 59% yield, which was then deprotected to afford the phenolic bis‐styrylbenzenes 6 in 99% yield (Fig.…”

“…In an effort to establish highly sensitive chemodosimeters for F À (25,26), a dual reaction-based mechanism involving the desilylation and deprotonation/autoxidation decyanation of the CHCN group was developed (27). To further investigate the mechanism of the dual reaction-based site, we planned to employ bis-styrylbenzene derivatives (28)(29)(30)(31) adhering to the double Si-O bond on the conjugated platform as a potential chemodosimeter for fluoride.…”

Nano–Micro Dimensional Structures of Fiber‐Shaped Luminous Halide Perovskite Composites for Photonic and Optoelectronic Applications

“…In recent years, some researches demonstrated composite nanofiber using the microfluidic approach. [ 123,124 ] Fundamentally, this type of spinning relies on the microfluidic technology for manipulation of fluid flow in microchannel, as shown in Figure 2b. Ma et al.…”

Revisiting salicylidene-based anion receptors

“… 13 Further, numerous fluoride chemodosimeter (reactive sensors) are also known in the literature. 14 This suggests that the reaction between an anion and a Schiff base cannot be ruled out, and detailed experimental investigations are necessary to come to a definite conclusion.…”