Abstract
AbstractA general method of preparation of derivatives of bis(o‐azaheteroaryl)methanes from aromatic N‐oxides is reported, the key step of which is a 1,3‐dipolar cycloaddition between N‐oxides of azines or azoles and in situ generated terminal difluoroalkenes containing an o‐azaheteroaryl substituent at the double bond. Selected products were applied for the preparation of two novel unsymmetrical analogues of BODIPY fluorescent dyes, containing both an imidazole and a quinoline or isoquinoline unit.
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