Heterocyclic Compounds
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ChemInform Abstract: Formation of N-N and N-C Bond-Cleavage Products in Displacements with N,N-Disubstituted Hydrazines on 1-Halo- or 1,4-Dihaloanthracene-9,10-diones.
First published: May 30, 1989
Abstract
Reaction of the haloanthraquinones (I) with dimethylhydrazine (II) or N-aminopiperidine (VI) results in predominant or exclusive cleavage of the N-N bond, producing the amine derivatives (III), (V), or (VII).
ChemInform Abstract
Reaction of the haloanthraquinones (I) with dimethylhydrazine (II) or N-aminopiperidine (VI) results in predominant or exclusive cleavage of the N-N bond, producing the amine derivatives (III), (V), or (VII). Treatment of (Ib) with (II) in dimethyl sulfoxide instead of pyridine favours the formation of the fused pyrazole (IVb). (Intermediates).
