GB798662A - Improvements in and relating to derivatives of pyrazole - Google Patents
Improvements in and relating to derivatives of pyrazoleInfo
- Publication number
- GB798662A GB798662A GB31907/56A GB3190756A GB798662A GB 798662 A GB798662 A GB 798662A GB 31907/56 A GB31907/56 A GB 31907/56A GB 3190756 A GB3190756 A GB 3190756A GB 798662 A GB798662 A GB 798662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pyrazole
- relating
- derivatives
- malonodinitrile
- cyanopyrazole
- 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
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
-
- 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
- C07D231/14—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 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
- C07D231/38—Nitrogen atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
The invention comprises 3-amino-4-cyanopyrazole and its preparation by reacting ethoxymethylene malonodinitrile with hydrazine. In examples the reactants are refluxed in ethanol and the mixture then evaporated to dryness to leave the required product.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US798662XA | 1955-10-27 | 1955-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB798662A true GB798662A (en) | 1958-07-23 |
Family
ID=22153292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31907/56A Expired GB798662A (en) | 1955-10-27 | 1956-10-19 | Improvements in and relating to derivatives of pyrazole |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB798662A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998419A (en) * | 1959-10-30 | 1961-08-29 | Du Pont | Certain amino, dicyano pyrazoles and process |
-
1956
- 1956-10-19 GB GB31907/56A patent/GB798662A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2998419A (en) * | 1959-10-30 | 1961-08-29 | Du Pont | Certain amino, dicyano pyrazoles and process |
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