HUT54137A - Process for producing thiophene-2-acetic acid - Google Patents

Process for producing thiophene-2-acetic acid

Info

Publication number
HUT54137A
HUT54137A HU509789A HU509789A HUT54137A HU T54137 A HUT54137 A HU T54137A HU 509789 A HU509789 A HU 509789A HU 509789 A HU509789 A HU 509789A HU T54137 A HUT54137 A HU T54137A
Authority
HU
Hungary
Prior art keywords
thiophene
acid
acetic acid
producing thiophene
glyoxylic
Prior art date
Application number
HU509789A
Other languages
Hungarian (hu)
Other versions
HU203744B (en
Inventor
Gyoergy Csermely
Tibor Galambos
Gyoergy Jancso
Istvan Kovacs
Original Assignee
Multikemia Vegyianyagokat Eloe
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Multikemia Vegyianyagokat Eloe filed Critical Multikemia Vegyianyagokat Eloe
Priority to HU509789A priority Critical patent/HU203744B/en
Publication of HUT54137A publication Critical patent/HUT54137A/en
Publication of HU203744B publication Critical patent/HU203744B/en

Links

Abstract

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
HU509789A 1989-09-28 1989-09-28 Process for producing thiophen-2-acetic acid HU203744B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HU509789A HU203744B (en) 1989-09-28 1989-09-28 Process for producing thiophen-2-acetic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU509789A HU203744B (en) 1989-09-28 1989-09-28 Process for producing thiophen-2-acetic acid

Publications (2)

Publication Number Publication Date
HUT54137A true HUT54137A (en) 1991-01-28
HU203744B HU203744B (en) 1991-09-30

Family

ID=10969659

Family Applications (1)

Application Number Title Priority Date Filing Date
HU509789A HU203744B (en) 1989-09-28 1989-09-28 Process for producing thiophen-2-acetic acid

Country Status (1)

Country Link
HU (1) HU203744B (en)

Also Published As

Publication number Publication date
HU203744B (en) 1991-09-30

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Legal Events

Date Code Title Description
HMM4 Cancellation of final prot. due to non-payment of fee