α??/β??Formylated Boron–Dipyrrin (BODIPY) Dyes: Regioselective Syntheses and Photophysical Properties

…, H Yin, J Zhou, W Pang, Y Wu, Z Wang…

Index: Yu, Changjiang; Jiao, Lijuan; Yin, Hao; Zhou, Jinyuan; Pang, Weidong; Wu, Yangchun; Wang, Zhaoyun; Yang, Gaosheng; Hao, Erhong European Journal of Organic Chemistry, 2011 , # 28 p. 5460 - 5468

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Citation Number: 33

Abstract

Abstract Formylation has been performed on 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 ...