Diaryldistyrylpyrazines: Solvatochromic and Acidochromic Fluorophores
作者:Volker Schmitt、Sebastian Moschel、Heiner Detert
DOI:10.1002/ejoc.201300463
日期:2013.9
Diaryldimethylpyrazines are the starting materials for the synthesis of C2-symmetric donor- or acceptor-substituted distyrylpyrazines. The optical properties of these cruciform-shaped dyes are dominated by the distyrylpyrazine units; the photophysics is controlled by the styryl substitution, the diaryl substituents on the central pyrazine only having a small effect. Protonation occurs on the pyrazine