2??Alkoxy??3??substituted??4??quinolinols from the thermal reactions of N??phenylketenimines bearing ester groups
J Motoyoshiya, A Takagi, K Hirakawa…
Index: Motoyoshiya, Jiro; Takagi, Akira; Hirakawa, Kiyoichi; Kakurai, Toshio Journal of Heterocyclic Chemistry, 1986 , vol. 23, p. 597 - 599
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Abstract
Abstract Several ketenimines bearing ester groups were prepared and their thermal reactions gave 2-alkoxy-3-substituted-4-quinolinols VIa-e via presumed iminoketene intermediates. Subsequent oxidation of 2-alkoxy-3-(3-methylbut-2-enyl)-4-quinolinols VIc and VId provided pyranoquinolines VIIIa and VIIIb.
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