Synthesis of 8-Amino-5, 6-quinolinediones from 6-Quinolinols and 5, 6-Dimethoxyquinolines

Twenty-five 8-amino-5, 6-quinolinediones were prepared by copper(II)-catalyzed oxidation of 6-quinolinol in methanol with secondary amines, or by oxidative demethylation of the corresponding 5, 6-dimethoxyquinolines in aqueous acetonitrile with cerium(IV) ammonium nitrate.

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Bibliographische Detailangaben
Veröffentlicht in:	Chemical & pharmaceutical bulletin 1990/10/25, Vol.38(10), pp.2841-2846
Hauptverfasser:	KITAHARA, Yoshiyasu, NAKAI, Tatsuya, SHIMIZU, Masaro, KUBO, Akinori
Format:	Artikel
Sprache:	eng
Schlagworte:	5, 6-quinolinedione 8-amino-5, 6-quinolinedione cerium(IV)ammonium nitrate Chemistry copper(II) acetate Exact sciences and technology Heterocyclic compounds Heterocyclic compounds with only one n hetero atom and condensed derivatives Organic chemistry oxidation oxidative demethylation Preparations and properties synthesis
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Beschreibung
Zusammenfassung:	Twenty-five 8-amino-5, 6-quinolinediones were prepared by copper(II)-catalyzed oxidation of 6-quinolinol in methanol with secondary amines, or by oxidative demethylation of the corresponding 5, 6-dimethoxyquinolines in aqueous acetonitrile with cerium(IV) ammonium nitrate.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.38.2841