Synthesis and Optical Properties of Difluorobora-<i>s</i>-diazaindacene Dyes with Trifluoromethyl<i>meso-</i>Substituents
作者:Lyubov N. Sobenina、Olga V. Petrova、Konstantin B. Petrushenko、Igor A. Ushakov、Albina I. Mikhaleva、Rachel Meallet-Renault、Boris A. Trofimov
DOI:10.1002/ejoc.201300212
日期:2013.7
A series of meso-CF3-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) dyes with aryl and hetaryl substituents at the C-3 and C-5 positions, both symmetric and asymmetric, have been synthesized in 36–90 % yields by a new strategy involving as the key step the condensation of 2,2,2-trifluoro-1-(5-arylpyrrol-2-yl)-1-ethanols with diverse 2-arylpyrroles. The starting 2,2,2-trifluoro-1-(5-arylpyrrol-2-yl)-1-ethanols
一系列 meso-CF3-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) 染料在 C-3 和 C-5 位置具有芳基和杂芳基取代基,对称和不对称, 已通过一种新策略以 36-90% 的产率合成,该策略包括将 2,2,2-三氟-1-(5-芳基吡咯-2-基)-1-乙醇与不同的 2-芳基吡咯缩合作为关键步骤. 起始的 2,2,2-三氟-1-(5-芳基吡咯-2-基)-1-乙醇很容易通过还原可用的 2-三氟乙酰基-5-芳基吡咯来制备。合成的染料在更长的波长区域(626-698 nm)发出荧光,并具有高量子产率(0.84-0.99)。