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Synthesis of 2H-benzo[2,3-g]pyridazino-[4,5-d,e]quinolin-3-one derivatives

✍ Scribed by L. Chaker; F. Pautet; H. Fillion

Publisher
Springer Vienna
Year
1997
Tongue
English
Weight
278 KB
Volume
128
Category
Article
ISSN
0026-9247

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## Synthesis of 2H-Benzo(2,3-g)pyridazino(4,5-d,e)quinolin-3-one Derivatives. -Treatment of the benzo(g)quinolinequinones (I), (III), and (IV) with hydrazine affords the corresponding title compounds (II) and (V), whereas reaction of (Ih) with (VI) yields the hydrazone (VII). -

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## Abstract Synthesis of the linear and angular furoquinolin‐4‐one derivatives 6 and 12 was performed, using nitrobenzofurans 3 and 9 as key intermediates. These compounds were reduced to the corresponding aminobenzofurans 4 and 10, which were condensed in two steps to yield, the linear furoquinoli