any compound, of general formula RC=NNR, formally derived from an aldehyde or ketone by replacing the carbonyl group with =NNH or derivative

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  • Hydrazōne — Hydrazōne, s. Phenylhydrazin …   Meyers Großes Konversations-Lexikon

  • hydrazone — ● hydrazone nom féminin Nom générique des composés organiques résultant de la condensation d un aldéhyde ou d une cétone avec une hydrazine …   Encyclopédie Universelle

  • Hydrazone — Hydrazone,   Hydrazin. * * * Hy|dra|zo|ne <Pl.> (Chemie): chemische Verbindungen von Hydrazin mit Aldehyden od. Ketonen …   Universal-Lexikon

  • Hydrazone — Allgemeine Formel von Hydrazonen mit blau markierter Hydrazo Gruppe. Von links nach rechts: Hydrazon (Grundkörper) , Phenylhydrazon und 2,4 Dinitrophenylhydrazon. Als Hydrazone bezeichnet man in der Chemie die von Hydrazin oder Derivaten… …   Deutsch Wikipedia

  • Hydrazone — Structure générale d une hydrazone Les hydrazones sont une famille de composés organiques comportant une structure de type R1R2C=NNH2 Sommaire 1 Synthèse …   Wikipédia en Français

  • Hydrazone — A hydrazone is a class of organic compounds with the structure R2C=NNR2. They are related to ketones and aldehydes by the replacement of the oxygen with the NNR2 functional group. They are formed usually by the action of hydrazine on ketones or… …   Wikipedia

  • hydrazone — hidrazonas statusas T sritis chemija formulė R₂C=NNH₂ atitikmenys: angl. hydrazone rus. гидразон …   Chemijos terminų aiškinamasis žodynas

  • hydrazone — ˈhīdrəˌzōn noun ( s) Etymology: International Scientific Vocabulary hydraz + ketone; originally formed as German hydrazon : any of a class of compounds containing the grouping >C . NNHR formed by the action of hydrazine or a substituted… …   Useful english dictionary

  • Hydrazone iodination — is an organic reaction in which a hydrazone is converted in a vinyl iodide by reaction of iodine and a non nucleophilic base such as DBU [ A new reaction of hydrazones Barton, D. H. R. , R. E. O Brien and S. Sternhell Journal of the Chemical… …   Wikipedia

  • hydrazone — /huy dreuh zohn /, n. any of a class of compounds containing the group > C=NNH2. [1885 90; HYDR 2 + AZ + (KET)ONE] * * * …   Universalium

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