- 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 azahelicene precursors and then an efficient one-pot two-step BODIPY synthesis (13 examples, 28-82%). Fused conjugates exhibit absorption and fluorescence properties (ΦF 30-45%) in the red visible domain, and a CPL signature could be measured at 605 nm (glum ±5·10-4). Photophysical and electronic properties were investigated and rationalized through first principles.
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