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Synthesis of 5,5′-Diarylimino Quinoidal 2,2′-Bithiazoles

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journal contribution
posted on 2016-12-14, 16:36 authored by Maria Koyioni, Panayiotis A. Koutentis
A Pd(0)-catalyzed double C–N coupling of 5,5′-dibromo-2,2′-bithiazoles with (het)­arylamines and subsequent in situ Ag2O-mediated oxidation provides access to cross-conjugated quinoidal 5,5′-diarylimino-2,2′-bithiazoles in moderate to high yield. The highly colored quinoidal 2,2′-bithiazoles were studied by UV/vis spectroscopy, cyclic voltammetry and computational methods.

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