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An NMR Study of Halogenated 1,4-Dihydro-1-ethyl-4-oxoquinoline-3-carboxylates

✍ Scribed by B. Podányi; G. Keresztúri; L. Vasvári-Debreczy; I. Hermecz; G. Tóth

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 507 KB
Volume: 34
Category: Article
ISSN: 0749-1581
DOI: 10.1002/(sici)1097-458x(199611)34:11<972::aid-omr994>3.0.co;2-9

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✦ Synopsis

Ethyl 1.4-dihydro-I -ethyl-4-oxoquinoline-3-carboxylate and 29 of its mono-, di-and tri-fluoro and/or -chloro derivatives were synthesized and their 'H, I3C and "F NMR spectra were recorded. 'H, "C and 1 9 F chemical shifts, J,, , J,, , J,, and J,, coupling constants are reported. The I3C substituent chemical shift values of the chloro and fluoro substituents were calculated by linear multiple regression.

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