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Intramolecular electronic interactions in two types of dicarbonyl compounds and their derivatives ? an electrochemical and quantum chemical study

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00320339" target="_blank" >RIV/61388955:_____/08:00320339 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Intramolecular electronic interactions in two types of dicarbonyl compounds and their derivatives ? an electrochemical and quantum chemical study

  • Original language description

    In the frame of studies of molecules with two redox centers, two isomeric monooximes derived from aryl-alkyl 1,2-diketones were electrochemically investigated. Whereas 1-phenyl-2-oxo-1-oximinopropane is reduced in acidic media according to the mechanismtypical for oximes, that means by fou electrons yielding aminoketone, which is further reduced bielectronically under splitting of ammonia, its isomer 1-phenyl-1-oxo-2-oximinopropane is reduced to the stable 1-hydroxy-2-aminoolefine (enol form) and thiscorresponds to the reduction mechanism of benzil. It is surprising that the unsymmetric molecule behaves like the symmetric one. Basing on the electrochemical data and their correlation with quantum chemical calculations it was possible to explain this phenomenon.

  • Czech name

    Intramolekulární elektronová interakce dvou typů dikarbonylových slouočenin a jejich derivátů ? elektrochemická a kvantově chemická studie

  • Czech description

    V rámci studia molekul se dvěma redox centry byly studovány dva izomérní mnooximy odvozené od aryl alkyl-1,2-diketonu. Zatímco 1-fenyl-2-oxo-1-oximinopropan se v kyselém prostředí redukuje mechanismem typickým pro oximy, tedy čtyřmi elektrony na aminoketon, který pak v druhém kroku ztrácí reduktivně aminoskupinu, jeho izomér 1-fenyl-1-oxo-2-oximinopropan se redukuje na dále neredukovatelný 1-hydroxy-2-aminoolefin (enol forma), což je analogické redukci benzilu. Zde je zvláště překvapivé, že nesymetrickámolekula se redukuje mechanismem typickým pro molekuly symetrické. Na základě elektrochemických dat a jejich korelace s kvantovými výpočty se podařilo důvod tohoto jevu vysvětlit.

Classification

  • Type

    D - Article in proceedings

  • CEP classification

    CG - Electrochemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/1P05ME785" target="_blank" >1P05ME785: Chemical and electrochemical properties of oximes - antidotes against nervous gases</a><br>

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Chemické listy

  • ISBN

  • ISSN

    0009-2770

  • e-ISSN

  • Number of pages

    2

  • Pages from-to

  • Publisher name

    Česká společnost chemická

  • Place of publication

    Olomouc

  • Event location

    Prague

  • Event date

    Jun 16, 2008

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article