FOERFARANDE FOER FRAMSTAELLNING AV 3-KLOR-5-ISOXAZOLAETTIKSSYRA

3-Chloro-5-isoxazoleacetic acid is prepared from 3-chloro-5-isoxazolepropionic acid by conversion of the latter to E-3-chloro-5-isoxazoleacrylic acid. This is first converted to the acid chloride, then to the acid azide, which is subjected to a Curtius degradation and hydrolysed and the hydrolysed p...

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Main Authors HORNYAK, GYULA, NYITRAI, JOZSEF, ELEK, SANDOR, SIMIG, GYULA, MIHOK NEE BORBELY, ILDIKO, LEMPERT, KAROLY, NAGY, JOZSEF, ZAUER, KAROLY, MIHOK, MIKLOS, GOMBOS, ZSUZSANNA, FETTER, JOZSEF, DOLESCHALL, GABOR
Format Patent
LanguageFinnish
Published 27.03.1987
Edition4
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:3-Chloro-5-isoxazoleacetic acid is prepared from 3-chloro-5-isoxazolepropionic acid by conversion of the latter to E-3-chloro-5-isoxazoleacrylic acid. This is first converted to the acid chloride, then to the acid azide, which is subjected to a Curtius degradation and hydrolysed and the hydrolysed product is condensed with hydroxylamine to give the corresponding nitrile, which is hydrolysed to give said 3-chloro-5-isoxazoleacetic acid.
Bibliography:Application Number: FI19860003866