α-/β-Formylated Boron-Dipyrrin (BODIPY) Dyes: Regioselective Syntheses and Photophysical Properties
作者:Changjiang Yu、Lijuan Jiao、Hao Yin、Jinyuan Zhou、Weidong Pang、Yangchun Wu、Zhaoyun Wang、Gaosheng Yang、Erhong Hao
DOI:10.1002/ejoc.201100736
日期:2011.10
pyrrole-unsubstituted dipyrromethanes 1 and boron–dipyrrin (BODIPY) dyes 4 based on a Vilsmeier–Haack reaction. It is highly regioselective and complementary and occurs exclusively at the α- and β-position, respectively, for pyrrole-unsubstituted dipyrromethanes 1 and BODIPY dyes 4. This regioselective formylation enables the syntheses of a variety of α- and β-substituted BODIPY dyes. The installation of formyl groups
基于 Vilsmeier-Haack 反应,已对吡咯未取代的二吡咯甲烷 1 和硼-二吡喃 (BODIPY) 染料 4 进行甲酰化。对于吡咯未取代的二吡咯甲烷 1 和 BODIPY 染料 4,它具有高度的区域选择性和互补性,分别仅出现在 α-和 β-位。这种区域选择性甲酰化可以合成各种 α- 和 β-取代的 BODIPY 染料。甲酰基的安装会影响 BODIPY 发色团的电子特性,导致 α- 和 β-甲酰化 BODIPY 3 和 5 的吸收和发射最大值分别发生红移和蓝移。