JPS55366A - Preparation of 4-benzoylpyrazole derivative - Google Patents
Preparation of 4-benzoylpyrazole derivativeInfo
- Publication number
- JPS55366A JPS55366A JP4167379A JP4167379A JPS55366A JP S55366 A JPS55366 A JP S55366A JP 4167379 A JP4167379 A JP 4167379A JP 4167379 A JP4167379 A JP 4167379A JP S55366 A JPS55366 A JP S55366A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- alkali metal
- compound
- preparation
- hydroxide
- 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.)
- Granted
Links
Landscapes
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
NEW MATERIAL:4-Benzoylpyrazole derivatives of formula I (R1, R2 are 1W3C straight-chained or branched alkyl; Y is O, S) or their salts.
EXAMPLE: 1,3-Dimethyl-4-(2,4-dichlorobenzoyl)-5-mercaptopyrazole.
USE: Herbicide, whitening weeds to death.
PREPARATION: A compound of formula V (X is halogen) is heated along with an alkali metal hydroxide as sodium hydroxide or potassium hydroxide or an alkali metal hydrosulfide as sodium hydrosulfide to form the objective compound of formula I. Further, when necessary, the resulting product is converted to the corresponding salt of alkali metal, ammonium or mineral acid. The compound of formula I can tautomerize to compounds of formula IIWIV.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041673A JPS604822B2 (en) | 1979-04-06 | 1979-04-06 | Method for producing 4-benzoylpyrazole derivatives |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54041673A JPS604822B2 (en) | 1979-04-06 | 1979-04-06 | Method for producing 4-benzoylpyrazole derivatives |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3493974A Division JPS5436648B2 (en) | 1974-03-28 | 1974-03-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55366A true JPS55366A (en) | 1980-01-05 |
JPS604822B2 JPS604822B2 (en) | 1985-02-06 |
Family
ID=12614914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54041673A Expired JPS604822B2 (en) | 1979-04-06 | 1979-04-06 | Method for producing 4-benzoylpyrazole derivatives |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS604822B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5029477A (en) * | 1973-03-09 | 1975-03-25 |
-
1979
- 1979-04-06 JP JP54041673A patent/JPS604822B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5029477A (en) * | 1973-03-09 | 1975-03-25 |
Also Published As
Publication number | Publication date |
---|---|
JPS604822B2 (en) | 1985-02-06 |
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