HUT54137A - Process for producing thiophene-2-acetic acid
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Process for producing thiophene-2-acetic acid
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Publication number
HUT54137A
HUT54137AHU509789AHU509789AHUT54137AHU T54137 AHUT54137 AHU T54137AHU 509789 AHU509789 AHU 509789AHU 509789 AHU509789 AHU 509789AHU T54137 AHUT54137 AHU T54137A
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Application filed by Multikemia Vegyianyagokat EloefiledCriticalMultikemia Vegyianyagokat Eloe
Priority to HU509789ApriorityCriticalpatent/HU203744B/en
Publication of HUT54137ApublicationCriticalpatent/HUT54137A/en
Publication of HU203744BpublicationCriticalpatent/HU203744B/en
Thiophene-2-acetic-acid is prepd. from 2-ocetyl thiophene by oxidation with nitric acid to thiophene-2-glyoxylic-acid. Thiophene-2-carboxylic-acid produced as a by product is removed by extraction with an organic solvent. Thiophene-2-glyoxylic-acid remaining in the reaction mix is reduced to thiophene-2-acetic acid by hydrazinic hydrazine-hydrate or hydrazine-sulphate
HU509789A1989-09-281989-09-28Process for producing thiophen-2-acetic acid
HU203744B
(en)