IL86972A - Acylation of amidazoles and pyrazoles in the presence of a zeolite catalyst - Google Patents
Acylation of amidazoles and pyrazoles in the presence of a zeolite catalystInfo
- Publication number
- IL86972A IL86972A IL86972A IL8697288A IL86972A IL 86972 A IL86972 A IL 86972A IL 86972 A IL86972 A IL 86972A IL 8697288 A IL8697288 A IL 8697288A IL 86972 A IL86972 A IL 86972A
- Authority
- IL
- Israel
- Prior art keywords
- carbon atoms
- aralkyl
- alkenyl
- aryl
- alkyl
- Prior art date
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)
- Plural Heterocyclic Compounds (AREA)
- Nitrogen Condensed Heterocyclic Rings (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.
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 IL86972A0 (en) | 1988-12-30 |
| IL86972A true 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)
| 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 |
| JP2000053651A (en) * | 1998-06-18 | 2000-02-22 | Lonza Ag | Production of formylimidazoles |
| KR20220052699A (en) * | 2020-10-21 | 2022-04-28 | 서울대학교산학협력단 | Supported metal catalyst and method of preparing the same |
-
1987
- 1987-07-21 DE DE19873724035 patent/DE3724035A1/en not_active Withdrawn
-
1988
- 1988-07-04 IL IL86972A patent/IL86972A/en not_active IP Right Cessation
- 1988-07-12 AT AT88111080T patent/ATE78469T1/en not_active IP Right Cessation
- 1988-07-12 EP EP88111080A patent/EP0300324B1/en not_active Expired - Lifetime
- 1988-07-12 DE DE8888111080T patent/DE3872968D1/en not_active Expired - Lifetime
- 1988-07-20 JP JP63179297A patent/JPS6461462A/en active Pending
- 1988-07-20 HU HU883782A patent/HU202213B/en not_active IP Right Cessation
- 1988-07-21 YU YU141388A patent/YU46984B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3872968D1 (en) | 1992-08-27 |
| HUT49584A (en) | 1989-10-30 |
| EP0300324B1 (en) | 1992-07-22 |
| JPS6461462A (en) | 1989-03-08 |
| ATE78469T1 (en) | 1992-08-15 |
| DE3724035A1 (en) | 1989-02-02 |
| YU141388A (en) | 1990-08-31 |
| YU46984B (en) | 1994-09-09 |
| IL86972A0 (en) | 1988-12-30 |
| EP0300324A1 (en) | 1989-01-25 |
| HU202213B (en) | 1991-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3688559D1 (en) | INTERMEDIATE PRODUCTS IN THE SYNTHESIS OF DIAMINANDROSTANE DERIVATIVES. | |
| ATE87925T1 (en) | ERYTHROMYCIN-A DERIVATIVES AND PROCESS FOR THEIR MANUFACTURE. | |
| BG101970A (en) | Triazolyl derivatives | |
| ATE90081T1 (en) | PROCESS FOR THE PREPARATION OF ACYLATED IMIDAZOLES. | |
| DK0604368T3 (en) | ||
| IL86972A (en) | Acylation of amidazoles and pyrazoles in the presence of a zeolite catalyst | |
| DE59608022D1 (en) | USE OF PIPERIDINE COMPOUNDS | |
| ZA895623B (en) | Tetracyclic antidepressants | |
| AU2021988A (en) | Novel compounds and processes for synthesis thereof | |
| ATE110068T1 (en) | 4-AMINOPHENOL DERIVATIVES AND PROCESS FOR THEIR PRODUCTION. | |
| ES8607935A1 (en) | Arylthio-pyridinyl alcanols. | |
| EP0448774A3 (en) | Triazinic compounds | |
| EP0420116A3 (en) | Novel substituted alkyl piperidines and their use as inhibitors of cholesterol synthesis | |
| GR3018629T3 (en) | Piperidine compounds with glycosidase inhibition activity. | |
| IL98919A0 (en) | Substituted piperidines and their use as inhibitors of cholesterol synthesis | |
| ES2023760A6 (en) | Benzothiazine derivatives, their preparation and their uses as medicines or as intermediates for the synthesis of medicines. | |
| ES481486A1 (en) | 1-Pyrrole- and 1-pyrrolidine-carboxylic acid derivatives and process for preparing the same | |
| ES2059261A1 (en) | Alkyl-bisacylphosphinoxides | |
| JPS6463569A (en) | Heteroaryl derivative | |
| DE3468023D1 (en) | Pesticidal nitromethane derivatives |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| KB | Patent renewed | ||
| KB | Patent renewed | ||
| MM9K | Patent not in force due to non-payment of renewal fees |