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Description
| - Upon reaction of 2-methyl-, 3-ethoxycarbonyl, and 4-ethoxycarbonylbenzenediazonium tetrafluoroborate with 1-cyclopropyl-3-phenylaminohex-2-en-1-one 3-cyclopropylcarbonyl-1-(substituted phenyl)-5-ethyl-4-phenylamino-1H-pyrazoles are formed. On the other hand, the reaction of 1-cyclopropyl-3-phenylaminohex-2-en-1-one and 5-methylaminohept-4-en-3-one with sterically more demanding 2-ethoxycarbonylbenzenediazonium tetrafluoroborate does not give the corresponding pyrazoles but the probable intermediates on the route to the pyrazoles: 1-cyclopropyl-3-phenyliminohexane-1,2,4-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone) and 3-methyliminoheptane-2,4,5-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone), respectively. All the compounds were identified on the basis of 1H-/13C-NMR spectra. The structure of 1-cyclopropyl-3-phenyliminohexane-1,2,4-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone) was confirmed by 15N-NMR spectra and X-ray. The bis(2-ethoxycarbonylphenylhydrazones) were found to show atropoisomerism.
- Upon reaction of 2-methyl-, 3-ethoxycarbonyl, and 4-ethoxycarbonylbenzenediazonium tetrafluoroborate with 1-cyclopropyl-3-phenylaminohex-2-en-1-one 3-cyclopropylcarbonyl-1-(substituted phenyl)-5-ethyl-4-phenylamino-1H-pyrazoles are formed. On the other hand, the reaction of 1-cyclopropyl-3-phenylaminohex-2-en-1-one and 5-methylaminohept-4-en-3-one with sterically more demanding 2-ethoxycarbonylbenzenediazonium tetrafluoroborate does not give the corresponding pyrazoles but the probable intermediates on the route to the pyrazoles: 1-cyclopropyl-3-phenyliminohexane-1,2,4-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone) and 3-methyliminoheptane-2,4,5-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone), respectively. All the compounds were identified on the basis of 1H-/13C-NMR spectra. The structure of 1-cyclopropyl-3-phenyliminohexane-1,2,4-trione 2,4-bis(2-ethoxycarbonylphenylhydrazone) was confirmed by 15N-NMR spectra and X-ray. The bis(2-ethoxycarbonylphenylhydrazones) were found to show atropoisomerism. (en)
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Title
| - Some New Information on the Formation of Substituted 4-Amino-1-Substituted Phenyl-1H-Pyrazoles from beta-Enaminones and Diazonium Tetrafluoroborates
- Some New Information on the Formation of Substituted 4-Amino-1-Substituted Phenyl-1H-Pyrazoles from beta-Enaminones and Diazonium Tetrafluoroborates (en)
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skos:prefLabel
| - Some New Information on the Formation of Substituted 4-Amino-1-Substituted Phenyl-1H-Pyrazoles from beta-Enaminones and Diazonium Tetrafluoroborates
- Some New Information on the Formation of Substituted 4-Amino-1-Substituted Phenyl-1H-Pyrazoles from beta-Enaminones and Diazonium Tetrafluoroborates (en)
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skos:notation
| - RIV/00216275:25310/11:39892209!RIV12-MSM-25310___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/00216275:25310/11:39892209
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - BENZOYLACETONE DERIVATIVEs; NMR; SALTS; TAUTOMERISM; BOND LENGTHS; NEUTRON-DIFFRACTION; X-RAY; AZO COUPLING PRODUCTS (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Journal of Heterocyclic Chemistry
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Růžička, Aleš
- Šimůnek, Petr
- Macháček, Vladimír
- Svobodová, Markéta
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http://linked.open...ain/vavai/riv/wos
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://bibframe.org/vocab/doi
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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