摘要:
                                We succeeded in developing a convenient one-pot pathway for synthesizing 4,4'-dimethoxy-boradiaza-s-indacene dyes 4a-d. The structures feature two methoxy groups in place of the fluorine atoms in 4,4'-difluoro-4-boradiaza-s-indacene. These novel dyes emitted green fluorescence and possessed moderate to high fluorescence quantum yields (Phi=0.32-0.93). We demonstrated that these dyes have applicability to cell labeling. (C) 2011 Elsevier Ltd. All rights reserved.