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Separable syn/anti Bis-Boron Dyes with Stereochemistry-Dependent Packing and Aggregated-State Emission
Mengjie Yang1, Muyao Zhao1, Sikang Duan1
1College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Zhejiang Key Laboratory of Organosilicon Material Technology, Hangzhou Normal University, Hangzhou, 311121, China.
None:
We report a new class of bis-boron fluorophores, BOSQUIs, accessible via a sequential multicomponent condensation/boron complexation strategy, and their syn/anti-stereoisomers can be directly observed and separated. These dyes display large Stokes shifts and tunable monomeric and aggregated-state emission governed by π-scaffold variation and axial aryl stereochemistry. The anti-3a further enables wash-free, high-contrast dynamic imaging and quantitative visualization of oleic-acid-induced lipid droplet biogenesis in living cells.
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