Treatment of a variety of aromatic compounds with thallium(II1) trifluoroacetate in trifluoroacetic acid, carbon tetrachloride, or acetonitrile results in oxidative coupling to give symmetrical biaryls in good to excellent yield.
Behandlung zahlreicher aromatischer Substrate, wie z.B. (I), (III), (V), mit dem Tl‐Titelreagenz Tl(T?)3 unter verschiedenen Bedingungen a)‐c) führt zu glatter, schneller und direkter regiospezifischer oxidativer Dehydrodimerisierung unter Bildung von Biarylen wie (II), (IV) bzw. (VI).
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