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Synthesis of 3-fluorofuran-2(5H)-ones based on Z/E photoisomerisation and cyclisation of 2-fluoro-4-hydroxybut-2-enoates

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F07%3A00018535" target="_blank" >RIV/60461373:22310/07:00018535 - isvavai.cz</a>

  • Alternative codes found

    RIV/61388963:_____/07:00091865

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Synthesis of 3-fluorofuran-2(5H)-ones based on Z/E photoisomerisation and cyclisation of 2-fluoro-4-hydroxybut-2-enoates

  • Original language description

    Mixtures of some (E)- and (Z)-2-fluoroalk-2-enoates prepared from the corresponding 2-hydroxycarbonyl compounds and ethyl 2-(diethoxyphosphoryl)-2-fluoroacetate have been transformed in high conversions into the target 3-fluorofuran-2(5H)-ones by an efficient Z/E photoisomerisation of noncyclisable Z isomers followed by acid-catalysed cyclisation. In contrast, the acid-catalysed deprotection of ethyl (E)- and (Z)-4-[tert-butyl(dimethyl)silyloxy]-2-fluoro-4-phen-ylbut-2-enoates resulted in the displacement of vinylic fluorine, affording ethyl (E)-2-oxo-4-phenylbut-3-enoate. 3-Fluoro-4-phenylfuran-2(5H)-one was transformed into 2-[tert-butyl(dimethyl)silyloxy]-3-fluoro-5-methylfuran as a novel fluorinated building block.

  • Czech name

    Syntéza 3-fluorfuran-2(5H)-onu na bázi Z/E fotoisomerizace a cyklizace 2-fluor-4-hydroxybut-2-enoátů

  • Czech description

    Směsi (E)- and (Z)-2-fluoroalk-2-enoátů připravených z odpovídajících 2-hydroxykarbonylových sloučenin a ethyl-2-(diethoxyphosphoryl)-2-fluoracetátu byly transformovány ve vysokých konverzích na cílové 3-fluorfuran-2(5H)-ony účinnou Z/E fotoisomerizací necyklizovatelných Z isomerů a následnou kysele katalyzovanou cyklizací.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CC - Organic chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    European Journal of Organic Chemistry

  • ISSN

    1434-193X

  • e-ISSN

  • Volume of the periodical

  • Issue of the periodical within the volume

    35

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    9

  • Pages from-to

    5917-5925

  • UT code for WoS article

  • EID of the result in the Scopus database