## Abstract 3‐Hydroxyquinoline‐2,4‐diones **1** react with isocyanates to give novel 1,2,3,4‐tetrahydro‐2,4‐dioxoquinolin‐3‐yl (alkyl/aryl)carbamates **2** and/or 1,9b‐dihydro‐9b‐hydroxyoxazolo[5,4‐__c__]quinoline‐2,4(3a__H__,5__H__)‐diones **3**. Both of these compounds are converted, by boiling i
✦ LIBER ✦
Reactions of acyl isocyanates with 8-hydroxyquinoline and 2-amino derivatives of pyridine, thiazole, 4-thiazolinone, and benzotriazole
✍ Scribed by K. A. Nuridzhanyan; G. V. Kuznetsova
- Book ID
- 112326572
- Publisher
- Springer US
- Year
- 1972
- Tongue
- English
- Weight
- 416 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0009-3122
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## Abstract Reaction of diones (I) and (V) with isocyanates gives the hitherto unknown dioxoquinolinyl carbamates (III) and/or oxazolo[5,4‐c]quinolinediones (IV).