IE820857L - Preparation of ameziniam metilsulfate. - Google Patents
Preparation of ameziniam metilsulfate.Info
- Publication number
- IE820857L IE820857L IE820857A IE85782A IE820857L IE 820857 L IE820857 L IE 820857L IE 820857 A IE820857 A IE 820857A IE 85782 A IE85782 A IE 85782A IE 820857 L IE820857 L IE 820857L
- Authority
- IE
- Ireland
- Prior art keywords
- metilsulfate
- preparation
- hydrogen
- ameziniam
- alkyl
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
- C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members 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
- C07D237/22—Nitrogen and oxygen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Steroid Compounds (AREA)
- Saccharide Compounds (AREA)
Abstract
1. A process for the preparation of amezinium metilsulfate by reacting 1-phenyl-4-aminopyridaz-6-one with dimethyl sulfate and subsequently isolating the amezinium metilsulfate by crystallization, wherein unreacted dimethyl sulfate, before crystallization of the amezinium metilsulfate, is bonded to an amide of the formula R**1 -(NH)n -CO-NR**2 R**3 , where R**1 is hydrogen, C1 -C8 -alkyl, C1 -C6 -alkoxy or C1 -C8 -alkylamino, R**2 and R**3 are each hydrogen or C1 -C8 -alkyl, or R**1 and R**2 together are a C3 -C5 -alkylene radical, and n is 0 or 1, at least one of the radicals R**1 , R**2 and R**3 , however, denoting hydrogen, or to the corresponding thioamide.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813114496 DE3114496A1 (en) | 1981-04-10 | 1981-04-10 | METHOD FOR PRODUCING AMEZINIUM |
Publications (2)
Publication Number | Publication Date |
---|---|
IE820857L true IE820857L (en) | 1982-10-10 |
IE52876B1 IE52876B1 (en) | 1988-03-30 |
Family
ID=6129850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IE857/82A IE52876B1 (en) | 1981-04-10 | 1982-04-08 | Preparation of amexinium metilsulfate |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0063267B1 (en) |
JP (1) | JPS57179166A (en) |
AT (1) | ATE10627T1 (en) |
DE (2) | DE3114496A1 (en) |
DK (1) | DK159582A (en) |
GR (1) | GR75519B (en) |
IE (1) | IE52876B1 (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1912941C3 (en) * | 1969-03-14 | 1980-06-26 | Basf Ag, 6700 Ludwigshafen | 1-phenyl ^ -amino-e-methoxypyridazinium salts |
-
1981
- 1981-04-10 DE DE19813114496 patent/DE3114496A1/en not_active Withdrawn
-
1982
- 1982-03-02 GR GR67448A patent/GR75519B/el unknown
- 1982-03-31 DE DE8282102697T patent/DE3261426D1/en not_active Expired
- 1982-03-31 EP EP82102697A patent/EP0063267B1/en not_active Expired
- 1982-03-31 AT AT82102697T patent/ATE10627T1/en not_active IP Right Cessation
- 1982-04-07 DK DK159582A patent/DK159582A/en not_active IP Right Cessation
- 1982-04-08 IE IE857/82A patent/IE52876B1/en unknown
- 1982-04-09 JP JP57058413A patent/JPS57179166A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
DE3261426D1 (en) | 1985-01-17 |
JPH0456033B2 (en) | 1992-09-07 |
DK159582A (en) | 1982-10-11 |
JPS57179166A (en) | 1982-11-04 |
IE52876B1 (en) | 1988-03-30 |
ATE10627T1 (en) | 1984-12-15 |
DE3114496A1 (en) | 1982-11-04 |
EP0063267B1 (en) | 1984-12-05 |
GR75519B (en) | 1984-07-26 |
EP0063267A1 (en) | 1982-10-27 |
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