반응 #1376

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ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-ethoxyacrylate

p-fluoroaniline

→

ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-(4-fluorophenyl)aminoacrylate

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실험 절차

Employing ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-ethoxyacrylate (1.0 g) and p-fluoroaniline (0.39 g), the procedure of Reference Example 8 is repeated to give ethyl 2-(2-methyl-3,4,6-trifluorobenzoyl)-3-(4-fluorophenyl)aminoacrylate, which is then treated with 60% sodium hydride (0.15 g) as in Reference Example 9 to give ethyl 1-(4-fluorophenyl)-5-methyl-6,7-difluoro-1,4-dihydro-4- oxoquinoline-3-carboxylate (0.64 g), as white crystals (recrystallized from ethanol), m.p. 256°-259° C.

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