JPS55160765A - Preparation of 4-benzoylpyrazole - Google Patents
Preparation of 4-benzoylpyrazoleInfo
- Publication number
- JPS55160765A JPS55160765A JP6641579A JP6641579A JPS55160765A JP S55160765 A JPS55160765 A JP S55160765A JP 6641579 A JP6641579 A JP 6641579A JP 6641579 A JP6641579 A JP 6641579A JP S55160765 A JPS55160765 A JP S55160765A
- Authority
- JP
- Japan
- Prior art keywords
- lower alkyl
- formula
- benzoic acid
- basic salt
- pyrazolone derivative
- 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
Abstract
PURPOSE: To obtain the title compound useful as a herbicide in high yields without using henzoylchloride, by reacting a pyrazolone derivative with a free benzoic acid under a specific condition so that the 4-position of the compound is acylated.
CONSTITUTION: A pyrazolone derivative shown by the formula I (R1 is lower alkyl or lower alkenyl; R2 is lower alkyl) is reacted with a benzoic acid shown by the formula II (X is halogen, lower alkyl, lower alkoxy, cyano, trifluoromethyl, or nitro; n is 1W3) in an inert solvent in the presence of an organic dehydrating condensing agent, e.g., carbodiimide, and a basic salt of an alkali metal or a hydroxide of an alkaline earth metal or a basic salt at 40W120°C, preferably 50W70°C, for 30 minutes to 2 hours to give the desired compound, e.g., 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole, shown by the formula III.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6641579A JPS55160765A (en) | 1979-05-29 | 1979-05-29 | Preparation of 4-benzoylpyrazole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6641579A JPS55160765A (en) | 1979-05-29 | 1979-05-29 | Preparation of 4-benzoylpyrazole |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55160765A true JPS55160765A (en) | 1980-12-13 |
JPS6334868B2 JPS6334868B2 (en) | 1988-07-12 |
Family
ID=13315133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6641579A Granted JPS55160765A (en) | 1979-05-29 | 1979-05-29 | Preparation of 4-benzoylpyrazole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55160765A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4816815B2 (en) * | 2009-10-30 | 2011-11-16 | 新東工業株式会社 | Polishing apparatus for polygonal columnar member and polishing method thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02158440A (en) * | 1988-12-09 | 1990-06-18 | Honda Electron Co Ltd | Drive device for apparatus installed in automobile |
-
1979
- 1979-05-29 JP JP6641579A patent/JPS55160765A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4816815B2 (en) * | 2009-10-30 | 2011-11-16 | 新東工業株式会社 | Polishing apparatus for polygonal columnar member and polishing method thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6334868B2 (en) | 1988-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5690031A (en) | Preparation of aromatic aldehyde | |
JPS55160765A (en) | Preparation of 4-benzoylpyrazole | |
JPS5484032A (en) | Miticide | |
JPS5634646A (en) | Preparation of phenoxyalkene derivative | |
JPS559002A (en) | 5-substituted picolinic acid derivative, its preparation and hypotensive agent containing the same | |
JPS56138177A (en) | Preparation of 5-acyloxymethylfurfural | |
JPS56113744A (en) | Benzoate derivative, its preparation, and use of said derivative | |
JPS5668668A (en) | Preparation of 2-indolinones | |
JPS55124760A (en) | Preparation of 1,4-dihydropyridine derivative or its salt | |
JPS5690067A (en) | Novel heterocyclic ring substituted phenylacetic acid derivative | |
JPS57106678A (en) | Preparation of dibenzothiepinpropionic acid derivative | |
JPS54125678A (en) | Preparation of 4-hydroxy-6-methylnicotinic acid | |
JPS5547659A (en) | Production of 4-benzoylpyrazole derivative | |
JPS5511503A (en) | Condensed heterocyclic compound | |
JPS5634647A (en) | Preparation of phenoxyalkene derivative | |
JPS5634648A (en) | Preparation of phenoxyalkene derivative | |
JPS55153734A (en) | Method of preparation of 4-substituted isopropenylbenzene | |
JPS55111430A (en) | Preparation of phenoxyalkene derivative | |
JPS57206644A (en) | Preparation of 4-(4- (anilino)phenoxy)-2-pentenoic acid derivative | |
JPS5714598A (en) | 5-substituted-1-beta-d-arabinofuranosyluracil derivative and its preparation | |
JPS56152471A (en) | Production of 3-cyanocoumarin derivative | |
JPS56152468A (en) | 3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine derivative and its production | |
JPS5564575A (en) | Preparation of 3-acyl-5-fluorouracil | |
JPS5587769A (en) | Preparation of pyrroleacetic acid derivative | |
JPS57102856A (en) | Preparation of oxime compound |