JPS54151969A - Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl 4-toluenesulfonate - Google Patents
Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl 4-toluenesulfonateInfo
- Publication number
- JPS54151969A JPS54151969A JP5999378A JP5999378A JPS54151969A JP S54151969 A JPS54151969 A JP S54151969A JP 5999378 A JP5999378 A JP 5999378A JP 5999378 A JP5999378 A JP 5999378A JP S54151969 A JPS54151969 A JP S54151969A
- Authority
- JP
- Japan
- Prior art keywords
- dimethyl
- formula
- compound
- dichlorobenzoyl
- toluenesulfonate
- 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: The continuous production of title compound, which is useful as a herbicide, is carried out in high yield by 2-step processes with one reaction system consisting of 1,3-dimethyl-5-pyrazolone, a solvent of an alcohol of 4 or more carbon atoms and a base of alkali metal carbonate.
CONSTITUTION: The reaction between 1,3-dimethyl-5-pyrazolone of formula I and a compound of formula II is conducted in the presence of an alkali metal carbonate, especially potassium carbonate is effective, in an amount of 1 mole or more per mol of the compound of formula I, preferably 1W4 moles in an alcohol of 4 or more carbon atoms, especially tert.-butanol is effective (the first step). The reaction products, that is the compound of formula III, without isolation and purification, is made to react with a compound of formula IV by directly adding it, thus producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-pyrazolyl 4-toluenesulfonate (the second step).
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53059993A JPS5917114B2 (en) | 1978-05-22 | 1978-05-22 | Process for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-pyrazolyl 4-toluenesulfonate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53059993A JPS5917114B2 (en) | 1978-05-22 | 1978-05-22 | Process for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-pyrazolyl 4-toluenesulfonate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54151969A true JPS54151969A (en) | 1979-11-29 |
JPS5917114B2 JPS5917114B2 (en) | 1984-04-19 |
Family
ID=13129192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53059993A Expired JPS5917114B2 (en) | 1978-05-22 | 1978-05-22 | Process for producing 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5-pyrazolyl 4-toluenesulfonate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5917114B2 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5029477A (en) * | 1973-03-09 | 1975-03-25 | ||
JPS50126830A (en) * | 1974-03-28 | 1975-10-06 | ||
JPS52268A (en) * | 1975-06-13 | 1977-01-05 | Bayer Ag | Production of pyrazole * pharmaceutical agent and composition |
-
1978
- 1978-05-22 JP JP53059993A patent/JPS5917114B2/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5029477A (en) * | 1973-03-09 | 1975-03-25 | ||
JPS50126830A (en) * | 1974-03-28 | 1975-10-06 | ||
JPS52268A (en) * | 1975-06-13 | 1977-01-05 | Bayer Ag | Production of pyrazole * pharmaceutical agent and composition |
Also Published As
Publication number | Publication date |
---|---|
JPS5917114B2 (en) | 1984-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3665578D1 (en) | Production of dibromonitro compound | |
JPS54151969A (en) | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl 4-toluenesulfonate | |
Hirama et al. | Trifunctional Chiral Synthons via Stereocontrolled Yeast Reduction. Preparation of Chiral Pentane-1, 3, 5-triol Derivatives | |
JPS57142929A (en) | Forming method of dipentaerythritol or ditrimethylolalkane as by-product at given ratio | |
JPS5273825A (en) | Preparation of organic phosphorous compounds | |
JPS5253839A (en) | Preparation of 2-(2,2-dihalovinyl) cyclopropane crboxylic acids | |
JPS577446A (en) | Production of succinosuccinic dialkyl ester | |
JPS54148786A (en) | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- hydroxypyrazole | |
JPS567785A (en) | Preparation of theobromine derivative | |
JPS5576881A (en) | Preparation of high-purity coproporphyrin 3 alkali salt | |
JPS5492949A (en) | Production of 3,17-dihydroxypregn-5-ene-29-ine | |
JPS54148743A (en) | Production of methoclopramide | |
JPS55122755A (en) | Production of n-carboxymethyltaurine alkali metal salt | |
JPS53137913A (en) | Preparation of cis-epoxysuccinic acid or cis-epoxysuccinate salt | |
JPS56113745A (en) | Preparation of bromonitroalcohol | |
JPS5248621A (en) | Process for preparation of farnesyl acetates | |
JPS5748938A (en) | Preparation of carboxylic acid ester | |
JPS525739A (en) | Process for preparation of succinylsuccinic -diester-dialkalimetal-sal t | |
JPS53135922A (en) | Synthesis of 2-chloro-2-hydroxyiminoacetic acid alkyl ester | |
JPS5772963A (en) | Alpha-(2-pyridyl)arylacetaldehyde | |
JPS5724329A (en) | Production of alpha-hydroxycarboxylic ester and its condensation product | |
JPS52223A (en) | Process for preparation of compound having ether bond | |
JPS55147234A (en) | Preparation of (+)-2-isopropyl-5-methyl-cyclohexanone | |
JPS56145246A (en) | Preparation of beta-nitrocarbonyl compound | |
JPS54112804A (en) | Preparation of alkadienyl ethers |