BE841284A - Procede de preparation d'acetoacetylamino-5 benzimidazolone - Google Patents

Procede de preparation d'acetoacetylamino-5 benzimidazolone

Info

Publication number
BE841284A
BE841284A BE166575A BE166575A BE841284A BE 841284 A BE841284 A BE 841284A BE 166575 A BE166575 A BE 166575A BE 166575 A BE166575 A BE 166575A BE 841284 A BE841284 A BE 841284A
Authority
BE
Belgium
Prior art keywords
preparing
acetoacetylamino
benzimidazolone
acetoacetylamino benzimidazolone
Prior art date
Application number
BE166575A
Other languages
English (en)
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 filed Critical
Publication of BE841284A publication Critical patent/BE841284A/fr

Links

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)
  • Plural Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE166575A 1975-04-29 1976-04-29 Procede de preparation d'acetoacetylamino-5 benzimidazolone BE841284A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2518922A DE2518922C2 (de) 1975-04-29 1975-04-29 Verfahren zur Herstellung von 5- Acetoacetylaminobenzimidazolon-(2)

Publications (1)

Publication Number Publication Date
BE841284A true BE841284A (fr) 1976-10-29

Family

ID=5945233

Family Applications (1)

Application Number Title Priority Date Filing Date
BE166575A BE841284A (fr) 1975-04-29 1976-04-29 Procede de preparation d'acetoacetylamino-5 benzimidazolone

Country Status (11)

Country Link
US (1) US4087610A (fr)
JP (1) JPS5910664B2 (fr)
BE (1) BE841284A (fr)
CA (1) CA1058621A (fr)
CH (1) CH603597A5 (fr)
DE (1) DE2518922C2 (fr)
FR (1) FR2309542A1 (fr)
GB (1) GB1534077A (fr)
IN (1) IN144220B (fr)
IT (1) IT1062997B (fr)
NL (1) NL7604355A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2612391C2 (de) * 1976-03-24 1982-09-23 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von 5-Acetoacetylaminobenzimidazolon-(2)
DE4335614A1 (de) * 1993-10-19 1995-04-27 Hoechst Ag Verfahren zur Herstellung von 5-Acetoacetylaminobenzimidazolon-2
CN104130193B (zh) * 2014-08-12 2016-09-28 南通醋酸化工股份有限公司 一种5-乙酰乙酰氨基苯并咪唑酮的合成方法
CN108101850B (zh) * 2017-12-21 2021-12-07 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
CN109748877A (zh) * 2019-03-21 2019-05-14 济南大学 一种5-乙酰乙酰氨基苯并咪唑酮的制备方法
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
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
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
CN111763174B (zh) * 2020-08-03 2023-06-09 山东汇海医药化工有限公司 一种减少5-乙酰乙酰氨基苯并咪唑酮母液蒸馏残渣的方法
CN114369066A (zh) * 2021-12-09 2022-04-19 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母液循环利用的方法

Family Cites Families (7)

* 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
DE1644231A1 (de) * 1967-10-27 1970-12-10 Hoechst Ag Wasserunloeslicher Monoazofarbstoff und Verfahren zu seiner Herstellung
US3963694A (en) * 1971-03-03 1976-06-15 Ciba-Geigy Corporation Hydroxyquinolyl- and quinazolonylazoacetoacetylbenzimidazolone pigments

Also Published As

Publication number Publication date
CA1058621A (fr) 1979-07-17
IT1062997B (it) 1985-02-11
JPS51131876A (en) 1976-11-16
US4087610A (en) 1978-05-02
NL7604355A (nl) 1976-11-02
FR2309542B1 (fr) 1980-08-01
DE2518922A1 (de) 1976-11-18
DE2518922C2 (de) 1982-08-19
JPS5910664B2 (ja) 1984-03-10
CH603597A5 (fr) 1978-08-31
IN144220B (fr) 1978-04-08
GB1534077A (en) 1978-11-29
FR2309542A1 (fr) 1976-11-26

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: HOECHST A.G.

Effective date: 19940430