Reaction of pentafluorobenzoylpyruvic acid with amines

Салоутин, В. И.; Bazyl, I. T.; Skryabina, Z. É.; Kondrat'ev, P. N.; Чупахин, О. Н.

doi:10.1007/bf00695829

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Fluorinated Benzazines1

Scheme 121

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2006

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Cited by 5 publications

(3 citation statements)

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“…2-Amino-substituted 3-pentafluorobenzoyl acrylic acids 48 derived from pyruvic acid 47 were found to undergo an intramolecular cyclization into fluoro-4-quinolone-2-carboxylic acids 49 (Scheme 16) [49][50][51].…”

Section: Fluorinated Benzazinesmentioning

confidence: 99%

Fluorinated benzazoles and benzazines

Носова

Mochul’skaya

Kotovskaya

et al. 2006

Heteroatom Chemistry

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Section: Fluorinated Benzazinesmentioning

confidence: 99%

Fluorinated benzazoles and benzazines

Носова

Mochul’skaya

Kotovskaya

et al. 2006

Heteroatom Chemistry

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Section: Scheme 12mentioning

confidence: 99%

Fluorinated Benzazoles and Benzazines

Носова¹,

Mochul’skaya²,

Kotovskaya³

et al. 2006

ChemInform

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“…However, these products are formed following different heterocyclization paths: cyclocondensation of pentafluorobenzoylpyruvate I with hydrazines involves the β-dicarbonyl fragment to give ethyl 5-pentafluorophenylpyrazole-3-carboxylates [4], while 3-methylidene-2,4-dioxobutanoates II and III undergo cyclization with participation of the α-oxovinyl moiety.…”

mentioning

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3-Methylidene-2,4-dioxo-4-pentafluorophenylbutanoates in the Synthesis of Heterocycles

et al. 2005

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3-Ethoxy-and 3-arylaminomethylidene-2,4-dioxo-4-pentafluorophenylbutanoates undergo cyclization by the action of hydrazine hydrate and phenylhydrazine to give ethyl 4-pentafluorobenzoylpyrazole-5-carboxylates. The reaction of 3-ethoxymethylidene-2,4-dioxo-4-pentafluorophenylbutanoate with o-phenylenediamine leads to formation of 3-[2-(2-aminophenylamino)-1-pentafluorobenzoylethenyl]-1,2-dihydroquinoxalin-2-one. 3-Arylaminomethylidene-2,4-dioxo-4-pentafluorophenylbutanoates react with o-phenylenediamine to afford 3-(1-aryl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinolin-3-yl)-1,2-dihydroquinoxalin-2-ones and/or 3-(2-arylamino-1-pentafluorobenzoylethenyl)-1,2-dihydroquinoxalin-2-ones.

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Reaction of pentafluorobenzoylpyruvic acid with amines

Cited by 5 publications

References 0 publications

Fluorinated benzazoles and benzazines

Fluorinated benzazoles and benzazines

Fluorinated Benzazoles and Benzazines

3-Methylidene-2,4-dioxo-4-pentafluorophenylbutanoates in the Synthesis of Heterocycles

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