JPS5594368A - Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate - Google Patents
Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonateInfo
- Publication number
- JPS5594368A JPS5594368A JP15497378A JP15497378A JPS5594368A JP S5594368 A JPS5594368 A JP S5594368A JP 15497378 A JP15497378 A JP 15497378A JP 15497378 A JP15497378 A JP 15497378A JP S5594368 A JPS5594368 A JP S5594368A
- Authority
- JP
- Japan
- Prior art keywords
- dichlorobenzoyl
- dimethyl
- water
- hydroxypyrazole
- inorganic base
- 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 substance useful as herbicides in high yield, by reacting 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole with a tosylating agent in a heterogeneous mixture of an inert solvent and water in the presence of an inorganic base as deacidification agent.
CONSTITUTION: 1,3-Dimethyl-4-(2,4-dichlorobenzoyl)-5-hydroxypyrazole is reacted with 4-toluenesulfonyl chloride or bromide in a heterogeneous mixture of an inert solvent, e.g. benzene, which is immiscible with water and inert to the reaction, and water in the presence of an inorganic base, e.g. an alkali metal hydroxide, as a deacidification agent to give the title substance. The use of a quaternary ammonium salt of the formula (R1, R2, R3 and R4 are alkyl groups, etc.; X is OH, halogen, etc.) as a catalyst further improves the yield remarkably.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15497378A JPS5594368A (en) | 1978-12-18 | 1978-12-18 | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15497378A JPS5594368A (en) | 1978-12-18 | 1978-12-18 | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5594368A true JPS5594368A (en) | 1980-07-17 |
JPS6155504B2 JPS6155504B2 (en) | 1986-11-28 |
Family
ID=15595921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15497378A Granted JPS5594368A (en) | 1978-12-18 | 1978-12-18 | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5594368A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167971A (en) * | 1981-04-09 | 1982-10-16 | Ishihara Sangyo Kaisha Ltd | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- substituted carbonylmethoxypyrazole |
-
1978
- 1978-12-18 JP JP15497378A patent/JPS5594368A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57167971A (en) * | 1981-04-09 | 1982-10-16 | Ishihara Sangyo Kaisha Ltd | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- substituted carbonylmethoxypyrazole |
Also Published As
Publication number | Publication date |
---|---|
JPS6155504B2 (en) | 1986-11-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5534229A (en) | Preparation of cellulose ether | |
JPS5594368A (en) | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate | |
JPS5540613A (en) | Preparation of 2, 6-dichloro-4-alkylphenol | |
JPS54141708A (en) | Preparation of glycidyl ether | |
JPS5562053A (en) | Production of aminophenol ether | |
JPS56154483A (en) | Preparation or pyrrole derivative | |
JPS55120565A (en) | 2-(halogen substituted phenoxy)-5-trifluoromethylpyridine | |
JPS57108079A (en) | Delta2-1,2,4-triazolin-5-one deriviative, its preparation and use | |
JPS5547651A (en) | Production of sulfoxyimine | |
JPS5576881A (en) | Preparation of high-purity coproporphyrin 3 alkali salt | |
JPS56118069A (en) | 8,9-dihydroxyphenanthridinium salt | |
JPH05155838A (en) | Azide-terminated azide compound | |
JPS5794003A (en) | Perfluorocarbon polymer and its production | |
JPS5545629A (en) | Preparation of 4-aminopyridine | |
JPS5583725A (en) | Preparation of aromatic alkyl ether compound | |
JPS5618971A (en) | Alpha-halogeno-beta-benzosulfimidopropionitrile and its preparation | |
JPS567752A (en) | Preparation of 2- sulfophenylhydrazino -butane diacid derivative | |
JPS5625134A (en) | Preparation of mono-substituted acetonedicarboxylic acid ester | |
JPS56110688A (en) | Preparation of xanthine derivative | |
JPS5626897A (en) | Preparation of 4-nitro-substituted phenol o,o-dialkylthiophosphate | |
JPS54144370A (en) | Preparation of 2-amino-4,5-dicyanoimidazole | |
JPS5625135A (en) | Preparation of mono-substituted acetonedicarboxylic acid ester | |
JPS5461158A (en) | 4-1-acetamido-3-(dichlorophenyl) propyl tropolones | |
JPS56108757A (en) | Preparation of dioximate compound | |
JPS5782374A (en) | Preparation of pyrazole derivative |