214. Synthesis and properties of chiral fluorescent helicene-BODIPY conjugates
     Pau Moneva Lorente, Antoine Wallabregue, Francesco Zinna, Céline Besnard, Lorenzo Di Bari, Jérôme Lacour
     Org. Biomol. Chem. 2020, 18, 7677-7684

A series of chiral fluorescent helicene-BODIPY conjugates was prepared by the regioselective formylation of aza[4]helicene precursors and then an efficient one-pot two-step BODIPY synthesis (13 examples, 28-82%). Fused conjugates exhibit absorption and fluorescence properties (Φ_F 30-45%) in the red visible domain, and a CPL signature could be measured at 605 nm (g_lum ±5·10^-4). Photophysical and electronic properties were investigated and rationalized through first principles.

DOI : 10.1039/D0OB01809K 

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