| Articolul precedent |
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| Ultima descărcare din IBN: 2022-06-24 12:17 |
 SM ISO690:2012SADOHIN, Vladimir. Sinteza și studiul spectroscopic al unor 3-aril-1-fenil-1H-pirazol-4-carbaldehide și a derivaților lor cu hidrazida acidului izonicotinic. In: Analele Ştiinţifice ale Universităţii de Stat din Moldova: . Științe ale naturii și exacte. Științe umanistice, 10 octombrie 2019, Chișinău. Chișinău, Republica Moldova: Universitatea de Stat din Moldova, 2019, SNE, SU, pp. 19-22. |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
| Analele Ştiinţifice ale Universităţii de Stat din Moldova SNE, SU, 2019 |
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Conferința "Analele ştiinţifice ale USM. Științe ale naturii și exacte. Științe umanistice" Chișinău, Moldova, 10 octombrie 2019 | ||||||
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This work is dedicated to the synthesis and spectroscopic study of a series of 3-aryl-1-phenyl-1H-pyrazole-4-carbaldehydes and their derivatives with isonicotinic acid hydrazide. Acetophenones phenylhydrazones were synthesized from a series of acetophenones by their condensation with phenylhydrazine. The obtained compounds were converted to 3-aryl-1-phenyl-1H-pyrazole4-carbaldehyde by the Vilsmeier reaction. The method of synthesis of pyrazole-4-carbaldehydes was modified using the phosphorus pentachloride as a reagent to obtain the Vilsmeier reagent. Afterwards, 3-aryl-1-phenyl-1Hpyrazole4-carbaldehydes were condensed with isonicotinic acid hydrazide. The structure of the obtained substances were been confirmed by IR, 1H-NMR and 13C-NMR spectroscopic analyzes. |
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