IL86972A0 - Preparation of acylated imidazoles and pyrazoles - Google Patents

Preparation of acylated imidazoles and pyrazoles

Info

Publication number
IL86972A0
IL86972A0 IL86972A IL8697288A IL86972A0 IL 86972 A0 IL86972 A0 IL 86972A0 IL 86972 A IL86972 A IL 86972A IL 8697288 A IL8697288 A IL 8697288A IL 86972 A0 IL86972 A0 IL 86972A0
Authority
IL
Israel
Prior art keywords
carbon atoms
aralkyl
alkenyl
aryl
alkyl
Prior art date
Application number
IL86972A
Other versions
IL86972A (en
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of IL86972A0 publication Critical patent/IL86972A0/en
Publication of IL86972A publication Critical patent/IL86972A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D231/00—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings
    • C07D231/02—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings
    • C07D231/10—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
    • C07D231/12—Heterocyclic compounds containing 1,2-diazole or hydrogenated 1,2-diazole rings not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
    • C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
    • C07D233/64—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms, e.g. histidine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Plural Heterocyclic Compounds (AREA)

Abstract

Acylated imidazoles and pyrazoles of the formula I and II <IMAGE> in which R<2> and R<3> can be identical or different and denote, independently of one another, H, alkyl having 1 to 12 carbon atoms, alkenyl having 1 to 12 carbon atoms, alkoxy having 1 to 12 carbon atoms, aryl, aralkyl or alkylaryl radicals, R<4> denotes H, alkyl having 1 to 12 carbon atoms, alkenyl having 1 to 12 carbon atoms, aryl, aralkyl or alkylaryl radicals and R<5> denotes alkyl having 1 to 12 carbon atoms, alkenyl having 1 to 12 carbon atoms, aryl, aralkyl, alkylaryl or carboxyl radicals, are prepared by converting five-membered heteroaromatics of the formula III or IV <IMAGE> in which R<1> - R<3> can be identical or different and, independently of one another denote H, alkyl having 1 to 12 carbon atoms, alkenyl having 1 to 12 carbon atoms, alkoxy having 1 to 12 carbon atoms, aryl, aralkyl or alkylaryl radicals, at least one of the radicals R<1> - R<3> being hydrogen, and R<4> denotes H, alkyl having 1 to 12 carbon atoms, alkenyl having 1 to 12 carbon atoms, aryl, aralkyl or alkylaryl radicals, with acylating agents of the formula V <IMAGE> in which R<5> has the abovementioned meaning and Y denotes a halide, alkoxy, acyloxy, hydroxyl, amido or carboxyl radical, in the presence of zeolites as catalysts. Preferably, zeolites of the pentasil type are used as catalysts.
IL86972A 1987-07-21 1988-07-04 Acylation of amidazoles and pyrazoles in the presence of a zeolite catalyst IL86972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19873724035 DE3724035A1 (en) 1987-07-21 1987-07-21 METHOD FOR PRODUCING ACYLATED IMIDAZOLES AND PYRAZOLES

Publications (2)

Publication Number Publication Date
IL86972A0 true IL86972A0 (en) 1988-12-30
IL86972A IL86972A (en) 1992-06-21

Family

ID=6331995

Family Applications (1)

Application Number Title Priority Date Filing Date
IL86972A IL86972A (en) 1987-07-21 1988-07-04 Acylation of amidazoles and pyrazoles in the presence of a zeolite catalyst

Country Status (7)

Country Link
EP (1) EP0300324B1 (en)
JP (1) JPS6461462A (en)
AT (1) ATE78469T1 (en)
DE (2) DE3724035A1 (en)
HU (1) HU202213B (en)
IL (1) IL86972A (en)
YU (1) YU46984B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3808071A1 (en) * 1988-03-11 1989-09-21 Basf Ag METHOD FOR PRODUCING ACYLATED IMIDAZOLES
DE19645313A1 (en) 1996-11-04 1998-05-07 Basf Ag Substituted 3-benzylpyrazoles
CA2274994A1 (en) * 1998-06-18 1999-12-18 Lonza Ag Process for the preparation of formylimidazoles
KR20220052699A (en) * 2020-10-21 2022-04-28 서울대학교산학협력단 Supported metal catalyst and method of preparing the same

Also Published As

Publication number Publication date
YU141388A (en) 1990-08-31
DE3724035A1 (en) 1989-02-02
IL86972A (en) 1992-06-21
YU46984B (en) 1994-09-09
DE3872968D1 (en) 1992-08-27
HU202213B (en) 1991-02-28
EP0300324A1 (en) 1989-01-25
HUT49584A (en) 1989-10-30
EP0300324B1 (en) 1992-07-22
ATE78469T1 (en) 1992-08-15
JPS6461462A (en) 1989-03-08

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Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees