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An easy and efficient synthesis of 4H-thiazolo[5,4,3-ij]quinolin-4-ones and 5H-1,4-thiazino[2,3,4-i,j]quinolin-5-ones

✍ Scribed by Francesco Babudri; Leonardo Di Nunno; Saverio Florio

Book ID: 112126554
Publisher: Journal of Heterocyclic Chemistry
Year: 1981
Tongue: English
Weight: 146 KB
Volume: 18
Category: Article
ISSN: 0022-152X
DOI: 10.1002/jhet.5570180644

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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