Data di Pubblicazione:
2020
Citazione:
Synthesis and photophysical properties of isocoumarin-based D-π-A systems / V. Pirovano, M. Marchetti, J. Carbonaro, E. Brambilla, E. Rossi, L. Ronda, G. Abbiati. - In: DYES AND PIGMENTS. - ISSN 0143-7208. - 173(2020 Feb). [10.1016/j.dyepig.2019.107917]
Abstract:
We prepared a small library of polarity-sensitive fluorescent dyes characterized by an isocoumarin core properly functionalized with a conjugated push-pull system. The key step of the synthesis is based on a regio-selective silver(I)/p-TSA co-catalyzed cyclization of 2-alkynylbenzoates recently optimized in our laboratory. The photophysical properties of isocoumarin-based D-pi-A systems have been investigated and a rationale was proposed based on their dipole moments and Hammett constants of the ED and EW groups involved.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Isocoumarins; Polarity sensitive; Push-pull system; Silver catalysis; Solvatochromism; Fluorescence
Elenco autori:
V. Pirovano, M. Marchetti, J. Carbonaro, E. Brambilla, E. Rossi, L. Ronda, G. Abbiati
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