Lehrstuhl für Anorganische Chemie, Technische Universit?t München, D‐85747 Garching bei München, Germany
Abstract:
New C2‐symmetric atropisomeric diazepinium salts were prepared utilizing Vilsmeier‐Haack activation of corresponding formamide precursors by phosgene solution in toluene. The structures of these substances were verified by X‐ray diffraction.