2,4-Dinitrophenylhydrazone.-Compound VI, 34 mg, was refluxed 5 min with 30 mg of 2,4-dinitrophenylhydrazine in 4 ml of methanol containing 0.1 ml of 6 N HC1. After cooling to room temperature the reaction mixture was centrifuged. The precipitate was crystallized from methanol, yield 27 mg, mp 138-1410.
Benzophenonoxim (I) liefert mit Dicyclohexylcarbodiimid/Dimethylsulfoxid neben Benzophenon ein Gemisch aus dem Nitron (IIa) und dem Oxim‐O‐äther (IIIa), deren Strukturen z.B. durch Desulfurierung zu (IIb) bzw. (IIIb) bestätigt wurden.
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