ES8301948A1 - "procedimiento para la preparacion de 3-hidroxi-1,2,4-triazoles". - Google Patents
"procedimiento para la preparacion de 3-hidroxi-1,2,4-triazoles".Info
- Publication number
- ES8301948A1 ES8301948A1 ES511107A ES511107A ES8301948A1 ES 8301948 A1 ES8301948 A1 ES 8301948A1 ES 511107 A ES511107 A ES 511107A ES 511107 A ES511107 A ES 511107A ES 8301948 A1 ES8301948 A1 ES 8301948A1
- Authority
- ES
- Spain
- Prior art keywords
- triazoles
- hydroxy
- substituted
- preparation
- cyclization
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
- C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
- C07D249/08—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
- C07D249/10—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles 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 to ring carbon atoms
- C07D249/12—Oxygen or sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
_(PROCEDIMIENTO PARA LA PREPARACION DE 3-HIDROXI-1,2,4-TRIAZOLES . SE HACE REACCIONAR FENILHIDRAZINA O SUS SALES, CON UREA O CON CIANATOS DE METALES ALCALINOS O DE AMONIO; SE OBTIENE FENILSEMICARBAZIDA QUE SE CICLIZA MEDIANTE ACIDO FORMICO. DICHA CICLIZACION SE REALIZA EN PRESENCIA DE UN ACIDO INORGANICO U ORGANICO FUERTE O DE UN HALOGENURO O ANHIDRIDO DEL MISMO. COMO ACIDOS PUEDEN EMPLEARSE EL CLORHIDRICO, EL FOSFORICO, EL CLOROSULFONICO O EL PARA-TOLUENOSULFONICO, A CONCENTRACIONES DE 0,05 A 0,5 MOLES POR CADA MOL DE SEMICARBAZIDA. LA CICLIZACION TIENE LUGAR EN UN DISOLVENTE INERTE TAL COMO EL AGUA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813114316 DE3114316A1 (de) | 1981-04-09 | 1981-04-09 | "verfahren zur herstellung von 3-hydroxy-1,2,4-triazolen" |
DE19813114314 DE3114314A1 (de) | 1981-04-09 | 1981-04-09 | "verfahren zur herstellung von substituierten 3-hydroxy-1,2,4-triazolen" |
Publications (2)
Publication Number | Publication Date |
---|---|
ES511107A0 ES511107A0 (es) | 1983-02-01 |
ES8301948A1 true ES8301948A1 (es) | 1983-02-01 |
Family
ID=25792570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES511107A Expired ES8301948A1 (es) | 1981-04-09 | 1982-04-02 | "procedimiento para la preparacion de 3-hidroxi-1,2,4-triazoles". |
Country Status (6)
Country | Link |
---|---|
US (1) | US4467098A (es) |
EP (1) | EP0062853B1 (es) |
CA (1) | CA1183543A (es) |
DE (1) | DE3267240D1 (es) |
ES (1) | ES8301948A1 (es) |
IL (1) | IL65457A (es) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2531429A1 (fr) * | 1982-08-06 | 1984-02-10 | Rhone Poulenc Agrochimie | Procede de preparation d'hydroxy-triazoles utilisables comme intermediaires pour les herbicides |
US5112983A (en) * | 1987-09-28 | 1992-05-12 | Olin Corporation | Process for producing 1,2,4-triazol-5-one using organic sulfonic acids and polymers thereof as a catalyst |
US4999434A (en) * | 1987-09-28 | 1991-03-12 | Olin Corporation | Process for low chloride 1,2,4-triazol-5-one |
DE3736180A1 (de) * | 1987-10-26 | 1989-05-03 | Basf Ag | Verfahren zum verschliessen und/oder abdichten von oeffnungen, hohl- oder zwischenraeumen bei auf formzylindern aufgebrachten druckplatten |
US4927940A (en) * | 1989-05-01 | 1990-05-22 | Olin Corporation | Process for low chloride 1,2,4-triazol-5-one |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2150169A1 (de) * | 1970-10-22 | 1972-04-27 | Agripat Sa | Neue Ester |
US3625951A (en) * | 1970-12-23 | 1971-12-07 | Air Prod & Chem | Preparation of 3,4-disubstituted-delta-2-1,2,-triazoline-5-thiones |
IL40535A (en) * | 1971-10-21 | 1976-03-31 | Ciba Geigy Ag | Triazolyl phosphoric acid esters,their manufacture and their use in pest control |
CH601266A5 (es) * | 1974-08-29 | 1978-06-30 | Ciba Geigy Ag | |
US4055572A (en) * | 1975-08-06 | 1977-10-25 | Ciba-Geigy Corporation | Process for the production of 3-hydroxy-1,2,4-triazole derivatives |
-
1982
- 1982-04-02 EP EP82102794A patent/EP0062853B1/de not_active Expired
- 1982-04-02 DE DE8282102794T patent/DE3267240D1/de not_active Expired
- 1982-04-02 ES ES511107A patent/ES8301948A1/es not_active Expired
- 1982-04-07 IL IL65457A patent/IL65457A/xx not_active IP Right Cessation
- 1982-04-07 US US06/366,320 patent/US4467098A/en not_active Expired - Lifetime
- 1982-04-08 CA CA000400713A patent/CA1183543A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3267240D1 (en) | 1985-12-12 |
CA1183543A (en) | 1985-03-05 |
IL65457A (en) | 1985-07-31 |
US4467098A (en) | 1984-08-21 |
EP0062853A2 (de) | 1982-10-20 |
ES511107A0 (es) | 1983-02-01 |
EP0062853B1 (de) | 1985-11-06 |
EP0062853A3 (en) | 1983-08-17 |
IL65457A0 (en) | 1982-07-30 |
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