CH537920A - Verfahren zur Herstellung reiner Dehydracetsäure - Google Patents

Verfahren zur Herstellung reiner Dehydracetsäure

Info

Publication number: CH537920A
Authority: CH; Switzerland
Prior art keywords: pure; production; dehydracetic acid; dehydracetic; acid
Prior art date: 1970-12-01

Application number

CH1775270A

Other languages

German (de)

English (en)

Inventor

Marxer Adrian

Original Assignee

Lonza Ag

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.)

1970-12-01

Filing date

1970-12-01

Publication date

1973-06-15

1970-12-01 Application filed by Lonza Ag filed Critical Lonza Ag

1970-12-01 Priority to CH1775270A priority Critical patent/CH537920A/de

1971-09-30 Priority to NL7113430A priority patent/NL7113430A/xx

1971-10-05 Priority to GB4630471A priority patent/GB1313246A/en

1971-10-15 Priority to IT5349371A priority patent/IT942222B/it

1971-11-05 Priority to CS777271A priority patent/CS164915B2/cs

1971-11-24 Priority to CA128,449A priority patent/CA963423A/en

1971-11-29 Priority to FR7142758A priority patent/FR2117164A5/fr

1971-11-29 Priority to BE775985A priority patent/BE775985A/xx

1971-11-30 Priority to SU1720173A priority patent/SU405202A3/ru

1971-11-30 Priority to LU64376D priority patent/LU64376A1/xx

1971-11-30 Priority to AT1030271A priority patent/AT308748B/de

1971-12-01 Priority to DE19712159634 priority patent/DE2159634A1/de

1973-06-15 Publication of CH537920A publication Critical patent/CH537920A/de

1974-01-25 Priority to US05/436,804 priority patent/US3936359A/en

Links

PGRHXDWITVMQBC-UHFFFAOYSA-N dehydroacetic acid Chemical compound CC(=O)C1C(=O)OC(C)=CC1=O PGRHXDWITVMQBC-UHFFFAOYSA-N 0.000 title 2

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)

CH1775270A 1970-12-01 1970-12-01 Verfahren zur Herstellung reiner Dehydracetsäure CH537920A (de)

Priority Applications (13)

Application Number	Priority Date	Filing Date	Title
CH1775270A CH537920A (de)	1970-12-01	1970-12-01	Verfahren zur Herstellung reiner Dehydracetsäure
NL7113430A NL7113430A (cs)	1970-12-01	1971-09-30
GB4630471A GB1313246A (en)	1970-12-01	1971-10-05	Process for the preparation of pure dehydroacetic acid
IT5349371A IT942222B (it)	1970-12-01	1971-10-15	Procedimento per produrre acido deidracetico puro
CS777271A CS164915B2 (cs)	1970-12-01	1971-11-05
CA128,449A CA963423A (en)	1970-12-01	1971-11-24	Process for the production of pure dehydroacetic acid
FR7142758A FR2117164A5 (cs)	1970-12-01	1971-11-29
BE775985A BE775985A (fr)	1970-12-01	1971-11-29	Procede de fabrication d'acide dehydracetique pur
SU1720173A SU405202A3 (cs)	1970-12-01	1971-11-30
LU64376D LU64376A1 (cs)	1970-12-01	1971-11-30
AT1030271A AT308748B (de)	1970-12-01	1971-11-30	Verfahren zur Reinigung von Dehydracetsäure
DE19712159634 DE2159634A1 (cs)	1970-12-01	1971-12-01
US05/436,804 US3936359A (en)	1970-12-01	1974-01-25	Process for the preparation of pure dehydroacetic acid

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
CH537920A true CH537920A (de)	1973-06-15

Family

ID=4427822

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH1775270A CH537920A (de)	1970-12-01	1970-12-01	Verfahren zur Herstellung reiner Dehydracetsäure

Country Status (12)

Country	Link
AT (1)	AT308748B (cs)
BE (1)	BE775985A (cs)
CA (1)	CA963423A (cs)
CH (1)	CH537920A (cs)
CS (1)	CS164915B2 (cs)
DE (1)	DE2159634A1 (cs)
FR (1)	FR2117164A5 (cs)
GB (1)	GB1313246A (cs)
IT (1)	IT942222B (cs)
LU (1)	LU64376A1 (cs)
NL (1)	NL7113430A (cs)
SU (1)	SU405202A3 (cs)

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
FR2117164A5 (cs)	1972-07-21
AT308748B (de)	1973-07-25
LU64376A1 (cs)	1973-06-21
IT942222B (it)	1973-03-20
NL7113430A (cs)	1972-06-05
DE2159634A1 (cs)	1972-06-08
SU405202A3 (cs)	1973-10-22
CA963423A (en)	1975-02-25
CS164915B2 (cs)	1975-11-28
BE775985A (fr)	1972-05-29
GB1313246A (en)	1973-04-11

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Legal Events

Date	Code	Title	Description
1978-08-31	PL	Patent ceased