Convenient method to access new 4,4-dialkoxy- and 4,4-diaryloxy-diaza-s-indacene dyes:: Synthesis and spectroscopic evaluation
Convenient method to access new 4,4-dialkoxy- and 4,4-diaryloxy-diaza-s-indacene dyes:: Synthesis and spectroscopic evaluation
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DOI:
10.1021/jo061567m
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发表时间:
2007-01-05
影响因子:
3.6
通讯作者:
Hibert, Marcel
中科院分区:
文献类型:
--
作者:
Tahtaoui, Chouaib;Thomas, Cecile;Hibert, Marcel
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.