BE852850A - Procede de preparation de la 5-acetoacetyl-amino-benzimidazolone - Google Patents

Procede de preparation de la 5-acetoacetyl-amino-benzimidazolone

Info

Publication number: BE852850A
Authority: BE; Belgium
Prior art keywords: benzimidazolone; acetoacetyl; amino; preparing
Prior art date: 1976-03-24

Application number

BE176094A

Other languages

English (en)

Original Assignee

Hoechst 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.)

1976-03-24

Filing date

1977-03-24

Publication date

1977-09-26

1977-03-24 Application filed by Hoechst Ag filed Critical Hoechst Ag

1977-09-26 Publication of BE852850A publication Critical patent/BE852850A/fr

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D235/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
- C07D235/02—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
- C07D235/04—Benzimidazoles; Hydrogenated benzimidazoles
- C07D235/24—Benzimidazoles; Hydrogenated benzimidazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 2
- C07D235/26—Oxygen atoms

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

BE176094A 1976-03-24 1977-03-24 Procede de preparation de la 5-acetoacetyl-amino-benzimidazolone BE852850A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2612391A DE2612391C2 (de)	1976-03-24	1976-03-24	Verfahren zur Herstellung von 5-Acetoacetylaminobenzimidazolon-(2)

Publications (1)

Publication Number	Publication Date
BE852850A true BE852850A (fr)	1977-09-26

Family

ID=5973269

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE176094A BE852850A (fr)	1976-03-24	1977-03-24	Procede de preparation de la 5-acetoacetyl-amino-benzimidazolone

Country Status (7)

Country	Link
US (1)	US4153798A (fr)
JP (1)	JPS6014031B2 (fr)
BE (1)	BE852850A (fr)
CH (1)	CH629193A5 (fr)
DE (1)	DE2612391C2 (fr)
FR (1)	FR2345434A1 (fr)
GB (1)	GB1541970A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4335614A1 (de) *	1993-10-19	1995-04-27	Hoechst Ag	Verfahren zur Herstellung von 5-Acetoacetylaminobenzimidazolon-2
US6617453B1 (en)	1997-10-24	2003-09-09	Clariant Finance (Bvi) Limited	Triphendioxazine compounds
DE19747175A1 (de)	1997-10-24	1999-04-29	Clariant Int Ltd	Chlorhaltige Triphendioxazin-Verbindungen
DE19913401A1 (de)	1999-03-25	2000-09-28	Clariant Gmbh	Verfahren zur Herstellung von Dioxazin-Verbindungen
DE10303581A1 (de) *	2003-01-30	2004-08-12	Clariant Gmbh	Acetoacetylierung von Alkoholen, Thiolen und Aminen im Mikroreaktor
CN110183385A (zh) *	2019-07-01	2019-08-30	山东汇海医药化工有限公司	一种提高5-乙酰乙酰氨基苯并咪唑酮纯度的方法
CN110128350A (zh) *	2019-07-01	2019-08-16	山东汇海医药化工有限公司	一种提高5-乙酰乙酰氨基苯并咪唑酮质量的方法
CN110845424B (zh) *	2019-12-11	2021-03-26	山东汇海医药化工有限公司	一种5-乙酰乙酰氨基苯并咪唑酮的制备方法
CN111039872A (zh) *	2019-12-11	2020-04-21	山东汇海医药化工有限公司	一种提高5-乙酰乙酰氨基苯并咪唑酮收率的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1982675A (en) *		1934-12-04		Pbeparation of acetoacetanilid
US2152132A (en) *	1936-12-12	1939-03-28	Carbide & Carbon Chem Corp	Acetoacetyl amides and process for their preparation
BE513633A (fr) *	1951-08-21
GB770263A (en) *	1954-06-19	1957-03-20	Wacker Chemie Gmbh	Process for the manufacture of acetoacetamides
GB962227A (en) *	1960-08-23	1964-07-01	Distillers Co Yeast Ltd	Production of aceto-acetarylamides
US3304328A (en) *	1963-10-25	1967-02-14	Fmc Corp	Preparation of acetoacetarylamides
DE1644231A1 (de) *	1967-10-27	1970-12-10	Hoechst Ag	Wasserunloeslicher Monoazofarbstoff und Verfahren zu seiner Herstellung
US3555003A (en) *	1968-10-22	1971-01-12	Hoechst Ag	Water-insoluble benzimidazolone containing monoazo dyestuffs
US3963694A (en) *	1971-03-03	1976-06-15	Ciba-Geigy Corporation	Hydroxyquinolyl- and quinazolonylazoacetoacetylbenzimidazolone pigments
DE2518922C2 (de) *	1975-04-29	1982-08-19	Hoechst Ag, 6000 Frankfurt	Verfahren zur Herstellung von 5- Acetoacetylaminobenzimidazolon-(2)

1976
- 1976-03-24 DE DE2612391A patent/DE2612391C2/de not_active Expired
1977
- 1977-03-21 CH CH352677A patent/CH629193A5/de not_active IP Right Cessation
- 1977-03-22 US US05/780,221 patent/US4153798A/en not_active Expired - Lifetime
- 1977-03-23 JP JP52031216A patent/JPS6014031B2/ja not_active Expired
- 1977-03-24 GB GB7712435A patent/GB1541970A/en not_active Expired
- 1977-03-24 FR FR7708782A patent/FR2345434A1/fr active Granted
- 1977-03-24 BE BE176094A patent/BE852850A/fr not_active IP Right Cessation

Also Published As

Publication number	Publication date
FR2345434B1 (fr)	1984-05-11
FR2345434A1 (fr)	1977-10-21
JPS52116467A (en)	1977-09-29
CH629193A5 (de)	1982-04-15
DE2612391A1 (de)	1977-10-06
DE2612391C2 (de)	1982-09-23
GB1541970A (en)	1979-03-14
JPS6014031B2 (ja)	1985-04-11
US4153798A (en)	1979-05-08

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Legal Events

Date	Code	Title	Description
1996-09-30	RE	Patent lapsed	Owner name: HOECHST A.G. Effective date: 19960331

Date

Code

Title

Description

1996-09-30

Patent lapsed

Owner name: HOECHST A.G.

Effective date: 19960331