期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 72, 期 1, 页码 269-272出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo061567m
关键词
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A straightforward method for the synthesis of original 4,4-dialkoxy- or 4,4-diaryloxy-diaza-s-indacenes (BODIPY) derivatives obtained by treatment of BODIPY 1 with various alcohols in the presence of AlCl3 is described. The novel compounds are characterized by spectroscopic properties similar to those of the parent BODIPY 1, absorption and emission spectra with similar band shapes, high molar absorption coefficients (epsilon(lambda max) approximate to 80 000 M-1 cm(-1)), and for most of them high fluorescence quantum yields (Phi(exp) from 0.52 to 0.71). Among all of the new compounds synthesized, the dye 2h exhibits higher fluorescence quantum yield (0.71) and lifetime (4.09 ns) than compound 1 and a good chemical stability toward conditions compatible with biological cell-based assays.
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