GFP Chromophores from L‐Phenylalanine: Synthesis, Photophysical and Thermal Properties

Abstract

Synthesis of p-conjugated green fluorescent protein chromophores analogs derived from amino acids are established. Indole and p-nitrophenyl tethered derivatives as the main structure could improve the thermal stability and optical property of the materials. The chromophores show good solubility in MeOH and CH 3 CN. They also show good thermal stability for practical applications. These compounds showed steady green light emissions in the range of 524-578 nm in solution.

Synthesis of Green/Blue Light Emitting Quinolines by Aza-D-A Reaction Using InCl3 Catalyst

“…Indium trichloride (InCl 3 ) has been widely used in organic transformations for the construction of complex heterocycles [29][30][31]. In continuation of our efforts on exploring the catalytic potential of InCl 3 for the synthesis of novel N-heterocycles [32][33][34], we herein report the InCl 3 -mediated efficient synthesis and the optical characterization of new 2,4-disubstituted quinoline derivatives having potential application as dyes in organic electronic devices (Scheme 1).…”

Synthesis and Fluorescence Mechanism of the Aminoimidazolone Analogues of the Green Fluorescent Protein: Towards Advanced Dyes with Enhanced Stokes Shift, Quantum Yield and Two‐Photon Absorption

“…It was also found that ESPT [35] or in certain cases, excited‐state intramolecular proton transfer (ESIPT) [36] and internal charge transfer (ICT) [31] may also play an essential role in determining the fluorescence properties of the planar GFP‐like chromophores. Many orthogonal structural modifications of p ‐HOBDI can be found in the literature, also aiming to improve the fluorescence property [37–44] . Alongside the synthetic efforts, an accurate understanding of the fluorescence mechanism must be pursued in order to successfully develop and apply novel fluorophores.…”