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Chemistry - A European Journal
Article . 2017 . Peer-reviewed
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Solvent‐Sensitive Emitting Urea‐Bridged bis‐BODIPYs: Ready Access by a One‐Pot Tandem Staudinger/Aza‐Wittig Ureation

Authors: J. Cristóbal López; Mayca del Rio; Ainhoa Oliden; Jorge Bañuelos; Iñigo López‐Arbeloa; Inmaculada García‐Moreno; Ana M. Gómez;

Solvent‐Sensitive Emitting Urea‐Bridged bis‐BODIPYs: Ready Access by a One‐Pot Tandem Staudinger/Aza‐Wittig Ureation

Abstract

AbstractHerein we describe the synthesis, and computationally aided photophysical characterization of a new set of urea‐bridged bis‐BODIPY derivatives. These new dyads are efficiently obtained by a one‐pot tandem Staudinger/aza‐Wittig ureation protocol, from easily accessible meso‐phenyl ortho‐azidomethyl BODIPYs. These symmetric bis‐BODIPYs outstand by a high absorption probability and excellent fluorescence and laser emission in less polar media. Nevertheless, this emission ability decreases in more polar media, which is ascribed to a light‐induced charge‐transfer from the urea spacer to the dipyrrin core, a process that can be modulated by appropriate changes in the substitution pattern of the BODIPY core. Furthermore, this ureation protocol can also be employed for the direct conjugation of our BODIPY‐azides to amine‐containing compounds, thus providing access to fluorescent non‐symmetric ureas.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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