CA1058621A - Process for the preparation of 5-acetoacetylamino benzimidazolone - Google Patents

Process for the preparation of 5-acetoacetylamino benzimidazolone

Info

Publication number
CA1058621A
CA1058621A CA251,369A CA251369A CA1058621A CA 1058621 A CA1058621 A CA 1058621A CA 251369 A CA251369 A CA 251369A CA 1058621 A CA1058621 A CA 1058621A
Authority
CA
Canada
Prior art keywords
reaction
acid
benzimidazolone
acetoacetylamino
added
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA251,369A
Other languages
English (en)
French (fr)
Inventor
Ernst Hille
Wilfried Sahm
Wolfgang Schiller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
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.)
Filing date
Publication date
Application filed by Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of CA1058621A publication Critical patent/CA1058621A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D235/00Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings
    • C07D235/02Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, condensed with other rings condensed with carbocyclic rings or ring systems
    • C07D235/04Benzimidazoles; Hydrogenated benzimidazoles
    • C07D235/24Benzimidazoles; 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
    • C07D235/26Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA251,369A 1975-04-29 1976-04-28 Process for the preparation of 5-acetoacetylamino benzimidazolone Expired CA1058621A (en)

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
CA1058621A true CA1058621A (en) 1979-07-17

Family

ID=5945233

Family Applications (1)

Application Number Title Priority Date Filing Date
CA251,369A Expired CA1058621A (en) 1975-04-29 1976-04-28 Process for the preparation of 5-acetoacetylamino benzimidazolone

Country Status (11)

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

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
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
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 (8)

* 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 (enExample) * 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
BE622476A (enExample) * 1961-09-14
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
NL7604355A (nl) 1976-11-02
IT1062997B (it) 1985-02-11
DE2518922A1 (de) 1976-11-18
DE2518922C2 (de) 1982-08-19
FR2309542A1 (fr) 1976-11-26
CH603597A5 (enExample) 1978-08-31
JPS51131876A (en) 1976-11-16
BE841284A (fr) 1976-10-29
JPS5910664B2 (ja) 1984-03-10
FR2309542B1 (enExample) 1980-08-01
US4087610A (en) 1978-05-02
IN144220B (enExample) 1978-04-08
GB1534077A (en) 1978-11-29

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