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Reaction of 1-alkyl/aryl-3-amino-1H,3H-quinoline-2,4-diones with urea. Synthetic route to novel 3-(3-acylureido)-2,3-dihydro-1H-indol-2-ones, 4-alkylidene-1′H-spiro[imidazolidine-5,3′-indole]-2,2′-diones, and 3,3a-dihydro-5H-imidazo[4,5-c]quinoline-2,4-diones

✍ Scribed by Antonı́n Klásek; Kamil Kořistek; Antonı́n Lyčka; Michal Holčapek

Publisher
Elsevier Science
Year
2003
Tongue
French
Weight
245 KB
Volume
59
Category
Article
ISSN
0040-4020

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✦ Synopsis

Reaction of 1-alkyl/aryl-3-amino-1H,3H-quinoline-2,4-diones with urea. Synthetic route to novel 3-(3-acylureido)

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## Abstract (__R__)‐5‐(diallylamino)‐5,6‐dihydro‐4__H__‐imidazo[4,5,1‐__ij__]quinolin‐2(1__H__)‐one (__12b__) was prepared in 9% overall yield from 3‐aminoquinoline. Reaction of __12b__ in ethyl acetate with tritium gas in presence of a 5% platinum on carbon catalyst afforded a mixture of (__R__)‐5