AT308748B - Verfahren zur Reinigung von Dehydracetsäure - Google Patents
Verfahren zur Reinigung von DehydracetsäureInfo
- Publication number
- AT308748B AT308748B AT1030271A AT1030271A AT308748B AT 308748 B AT308748 B AT 308748B AT 1030271 A AT1030271 A AT 1030271A AT 1030271 A AT1030271 A AT 1030271A AT 308748 B AT308748 B AT 308748B
- Authority
- AT
- Austria
- Prior art keywords
- purifying
- dehydroacetic acid
- dehydroacetic
- acid
- purifying dehydroacetic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1775270A CH537920A (de) | 1970-12-01 | 1970-12-01 | Verfahren zur Herstellung reiner Dehydracetsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT308748B true AT308748B (de) | 1973-07-25 |
Family
ID=4427822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT1030271A AT308748B (de) | 1970-12-01 | 1971-11-30 | Verfahren zur Reinigung von Dehydracetsäure |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT308748B (de) |
| BE (1) | BE775985A (de) |
| CA (1) | CA963423A (de) |
| CH (1) | CH537920A (de) |
| CS (1) | CS164915B2 (de) |
| DE (1) | DE2159634A1 (de) |
| FR (1) | FR2117164A5 (de) |
| GB (1) | GB1313246A (de) |
| IT (1) | IT942222B (de) |
| LU (1) | LU64376A1 (de) |
| NL (1) | NL7113430A (de) |
| SU (1) | SU405202A3 (de) |
-
1970
- 1970-12-01 CH CH1775270A patent/CH537920A/de not_active IP Right Cessation
-
1971
- 1971-09-30 NL NL7113430A patent/NL7113430A/xx unknown
- 1971-10-05 GB GB4630471A patent/GB1313246A/en not_active Expired
- 1971-10-15 IT IT5349371A patent/IT942222B/it active
- 1971-11-05 CS CS777271A patent/CS164915B2/cs unknown
- 1971-11-24 CA CA128,449A patent/CA963423A/en not_active Expired
- 1971-11-29 FR FR7142758A patent/FR2117164A5/fr not_active Expired
- 1971-11-29 BE BE775985A patent/BE775985A/xx unknown
- 1971-11-30 SU SU1720173A patent/SU405202A3/ru active
- 1971-11-30 LU LU64376D patent/LU64376A1/xx unknown
- 1971-11-30 AT AT1030271A patent/AT308748B/de not_active IP Right Cessation
- 1971-12-01 DE DE19712159634 patent/DE2159634A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CH537920A (de) | 1973-06-15 |
| CS164915B2 (de) | 1975-11-28 |
| DE2159634A1 (de) | 1972-06-08 |
| CA963423A (en) | 1975-02-25 |
| LU64376A1 (de) | 1973-06-21 |
| GB1313246A (en) | 1973-04-11 |
| IT942222B (it) | 1973-03-20 |
| SU405202A3 (de) | 1973-10-22 |
| FR2117164A5 (de) | 1972-07-21 |
| NL7113430A (de) | 1972-06-05 |
| BE775985A (fr) | 1972-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee |