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Synthesis of 3-nitro- and 3-aminoquinoline-2,4-diones. An unexpected route to 3-hydroxyquinoline-2,4-diones

✍ Scribed by Wolfgang Stadlbauer; Herbert Lutschounig; Gerda Schindler; Theo Witoszynskyj; Thomas Kappe


Book ID
112130473
Publisher
Journal of Heterocyclic Chemistry
Year
1992
Tongue
English
Weight
330 KB
Volume
29
Category
Article
ISSN
0022-152X

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Reaction of 3-aminoquinoline-2,4-diones
✍ Antonín Klásek; Ignác Hoza; Antonín Lyčka; Michal Holčapek 📂 Article 📅 2006 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 138 KB

## Abstract magnified image 3‐Alkyl/aryl‐3‐amino‐1__H__,3__H__‐quinoline‐2,4‐diones react with alkyl/aryl isocyanates to give novel 3‐alkyl/aryl‐3‐ureido‐1__H__,3__H__‐quinoline‐2,4‐diones or 3a‐alkyl/aryl‐9b‐hydroxy‐3,3a,5,9b‐tetrahydro‐1__H__‐imidazo[4,5‐__c__]quinoline‐2,4‐diones. In some cases