Behavior of 5,6‐dihydrobenzo[ h ]cinnolinones towards hydrazine. Synthesis of benzo[ h ]cinnolinones and of 4‐Aminobenzo[ h ]cinnolinones | Zendy

Villa Stefania | Zendy; Evoli Giacomo Luca | Zendy; Cignarella Giorgio | Zendy; Curzu Michela M. | Zendy; Pinna Gérard A. | Zendy

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Behavior of 5,6‐dihydrobenzo[ h ]cinnolinones towards hydrazine. Synthesis of benzo[ h ]cinnolinones and of 4‐Aminobenzo[ h ]cinnolinones

Author(s) -

Villa Stefania,

Evoli Giacomo Luca,

Cignarella Giorgio,

Curzu Michela M.,

Pinna Gérard A.

Publication year - 1999

Publication title -

journal of heterocyclic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.321

H-Index - 59

eISSN - 1943-5193

pISSN - 0022-152X

DOI - 10.1002/jhet.5570360226

Subject(s) - dehydrogenation , chemistry , hydrazine (antidepressant) , amination , hydrate , medicinal chemistry , organic chemistry , catalysis , chromatography

Dehydrogenation and amination of 4,4a,5,6‐tetrahydro and 5,6‐dihydrobenzocinnolinones in refluxing hydrazine hydrate to give new benzo[ h ]cinnolinones and 4‐aminobenzo[ h ]cinnolinones are reported, and reaction mechanisms proposed. Experiments were also extended to 4,4a‐dihydro‐5 H ‐indenopyridazinone which underwent hydrazine induced dehydrogenation to 5 H ‐indenopyridazin‐3‐one but not subsequent amination.

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