Thiophene-substituted aza-bodipy as a strategic synthon for the design of near-infrared dyes?

New Journal of Chemistry Pub Date: 2012-01-09 DOI: 10.1039/C2NJ20943H

Abstract

Original aza-bodipy dyes functionalised by thiophene moieties in 3,5 or 1,7 positions were prepared and characterised by X-ray crystallography. The 3,5 substituted compound 3 exhibits promising photophysical properties red-shifted in the NIR spectral range. Furthermore, the presence of bromide atoms has allowed π-conjugated skeleton extension via Sonogashira cross-coupling.

Graphical abstract: Thiophene-substituted aza-bodipy as a strategic synthon for the design of near-infrared dyes
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