HUP9700580A3 - Process for producing pure alkyl-acetyl-acetic acid alkyl esters - Google Patents

Process for producing pure alkyl-acetyl-acetic acid alkyl esters

Info

Publication number: HUP9700580A3
Authority: HU; Hungary
Prior art keywords: acetyl; acetic acid; producing pure; alkyl; alkyl esters
Prior art date: 1996-03-13

Application number

HU9700580A

Other languages

English (en)

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.)

1996-03-13

Filing date

1997-03-12

Publication date

1998-01-28

1997-03-12 Application filed by Lonza Ag filed Critical Lonza Ag

1997-04-28 Publication of HU9700580D0 publication Critical patent/HU9700580D0/hu

1997-12-29 Publication of HUP9700580A2 publication Critical patent/HUP9700580A2/hu

1998-01-28 Publication of HUP9700580A3 publication Critical patent/HUP9700580A3/hu

1999-07-28 Publication of HU216549B publication Critical patent/HU216549B/hu

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/60—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
General Chemical & Material Sciences (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

HU9700580A 1996-03-13 1997-03-12 Eljárás tiszta alkil-acetil-ecetsav-alkil-észterek előállítására HU216549B (hu)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH65596		1996-03-13
CH108796		1996-04-30

Publications (4)

Publication Number	Publication Date
HU9700580D0 HU9700580D0 (en)	1997-04-28
HUP9700580A2 HUP9700580A2 (en)	1997-12-29
HUP9700580A3 true HUP9700580A3 (en)	1998-01-28
HU216549B HU216549B (hu)	1999-07-28

Family

ID=25685276

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
HU9700580A HU216549B (hu)	1996-03-13	1997-03-12	Eljárás tiszta alkil-acetil-ecetsav-alkil-észterek előállítására

Country Status (16)

Country	Link
US (1)	US5786501A (hu)
EP (1)	EP0795538B1 (hu)
JP (1)	JP3981998B2 (hu)
KR (1)	KR100465142B1 (hu)
CN (1)	CN1116272C (hu)
AT (1)	ATE184588T1 (hu)
CA (1)	CA2198837C (hu)
CZ (1)	CZ293618B6 (hu)
DE (1)	DE59700429D1 (hu)
DK (1)	DK0795538T3 (hu)
ES (1)	ES2138409T3 (hu)
HU (1)	HU216549B (hu)
NO (1)	NO307044B1 (hu)
PL (1)	PL187309B1 (hu)
SK (1)	SK282381B6 (hu)
TW (1)	TW349938B (hu)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
AT407249B (de) *	1997-12-29	2001-01-25	Chemie Linz Gmbh	Verbessertes verfahren zur herstellung von 2-acetylcarbonsäureestern
CN114920646B (zh) *	2022-05-13	2023-10-27	安徽英瑞骐生物科技有限公司	一种2-正丁基乙酰乙酸乙酯的新合成方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2900311A (en) *	1952-10-11	1959-08-18	Union Carbide Corp	Purification of acetoacetic esters by distillation
US2843623A (en) *	1954-10-01	1958-07-15	Nat Distillers Chem Corp	Production of ethyl acetoacetate
BE760034A (fr) *	1969-12-08	1971-06-08	Ici Ltd	Production d'esters
DE3227388A1 (de) *	1982-07-22	1984-01-26	Basf Ag, 6700 Ludwigshafen	Verfahren zur herstellung von (alpha)-substituierten ss-dicarbonyl-, ss-cyancarbonyl- und ss-dicyanverbindungen

1997
- 1997-02-25 US US08/806,051 patent/US5786501A/en not_active Expired - Fee Related
- 1997-02-28 CA CA002198837A patent/CA2198837C/en not_active Expired - Fee Related
- 1997-03-04 TW TW086102538A patent/TW349938B/zh active
- 1997-03-05 SK SK286-97A patent/SK282381B6/sk not_active IP Right Cessation
- 1997-03-07 JP JP05297197A patent/JP3981998B2/ja not_active Expired - Lifetime
- 1997-03-07 KR KR1019970007701A patent/KR100465142B1/ko not_active Expired - Fee Related
- 1997-03-12 EP EP97104180A patent/EP0795538B1/de not_active Expired - Lifetime
- 1997-03-12 PL PL97318927A patent/PL187309B1/pl not_active IP Right Cessation
- 1997-03-12 DE DE59700429T patent/DE59700429D1/de not_active Expired - Fee Related
- 1997-03-12 CZ CZ1997748A patent/CZ293618B6/cs not_active IP Right Cessation
- 1997-03-12 ES ES97104180T patent/ES2138409T3/es not_active Expired - Lifetime
- 1997-03-12 NO NO971148A patent/NO307044B1/no not_active IP Right Cessation
- 1997-03-12 HU HU9700580A patent/HU216549B/hu not_active IP Right Cessation
- 1997-03-12 AT AT97104180T patent/ATE184588T1/de not_active IP Right Cessation
- 1997-03-12 DK DK97104180T patent/DK0795538T3/da active
- 1997-03-13 CN CN97103475A patent/CN1116272C/zh not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0795538B1 (de)	1999-09-15
PL187309B1 (pl)	2004-06-30
ES2138409T3 (es)	2000-01-01
CZ293618B6 (cs)	2004-06-16
KR100465142B1 (ko)	2005-04-06
CZ74897A3 (cs)	1998-05-13
SK28697A3 (en)	1997-12-10
JPH101456A (ja)	1998-01-06
HU9700580D0 (en)	1997-04-28
HU216549B (hu)	1999-07-28
PL318927A1 (en)	1997-09-15
DK0795538T3 (da)	1999-12-20
EP0795538A1 (de)	1997-09-17
NO971148D0 (no)	1997-03-12
CN1116272C (zh)	2003-07-30
US5786501A (en)	1998-07-28
CN1163260A (zh)	1997-10-29
TW349938B (en)	1999-01-11
CA2198837A1 (en)	1997-09-14
DE59700429D1 (de)	1999-10-21
SK282381B6 (sk)	2002-01-07
JP3981998B2 (ja)	2007-09-26
NO971148L (no)	1997-09-15
NO307044B1 (no)	2000-01-31
HUP9700580A2 (en)	1997-12-29
KR970069972A (ko)	1997-11-07
ATE184588T1 (de)	1999-10-15
CA2198837C (en)	2004-10-26

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Legal Events

Date	Code	Title	Description
2011-01-28	MM4A	Lapse of definitive patent protection due to non-payment of fees