JPS6452734A - Production of fluorobenzaldehydes - Google Patents
Production of fluorobenzaldehydesInfo
- Publication number
- JPS6452734A JPS6452734A JP63107064A JP10706488A JPS6452734A JP S6452734 A JPS6452734 A JP S6452734A JP 63107064 A JP63107064 A JP 63107064A JP 10706488 A JP10706488 A JP 10706488A JP S6452734 A JPS6452734 A JP S6452734A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- salt
- formula
- aromatic hydrocarbon
- hydrocarbon solvent
- 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
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE:To obtain the titled substance, by reacting halogenated benzaldehydes with a metal fluoride using a quaternary phosphonium salt or combination of the above-mentioned salt and crown ether, etc., as a catalyst in an aromatic hydrocarbon solvent. CONSTITUTION:When a compound expressed by formula I is reacted with a metal fluoride to provide the compound expressed by formula II (X is Cl, Br or I; n and m are 1-5 and n>=m), the reaction is carried out using a quaternary phosphonium salt or combination of the above-mentioned salt and at least one kind of compound selected from crown ether and polyalkylene glycol as a catalyst in an aromatic hydrocarbon solvent (e.g. chlorobenzenes) at 200-250 deg.C for 2-15hr. The titled substance is useful as an intermediate for medicine and agricultural chemical and is obtained from a readily available raw material in good yield and post-treatment is readily carried out and recovery and reuse of the catalyst is also possible, according to the above-mentioned method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63107064A JP2527596B2 (en) | 1987-05-08 | 1988-04-28 | Method for producing fluorobenzaldehydes |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11197887 | 1987-05-08 | ||
| JP62-111978 | 1987-05-08 | ||
| JP63107064A JP2527596B2 (en) | 1987-05-08 | 1988-04-28 | Method for producing fluorobenzaldehydes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6452734A true JPS6452734A (en) | 1989-02-28 |
| JP2527596B2 JP2527596B2 (en) | 1996-08-28 |
Family
ID=26447130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63107064A Expired - Lifetime JP2527596B2 (en) | 1987-05-08 | 1988-04-28 | Method for producing fluorobenzaldehydes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2527596B2 (en) |
-
1988
- 1988-04-28 JP JP63107064A patent/JP2527596B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2527596B2 (en) | 1996-08-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5003084A (en) | Process for preparing alkylene carbonates | |
| US5349077A (en) | Process for producing alkylene carbonates | |
| IE810969L (en) | Alpha-chlorinated chloroformates | |
| EP0253836B1 (en) | Preparation of fluoroaromatic compounds in dispersion of potassium fluoride | |
| GR3002689T3 (en) | Process for producing 2-methyl-1,4-naphthoquinone | |
| EP0645365B1 (en) | Process for producing 2-fluoroisobutyric acid or ester thereof | |
| JPH0441449A (en) | Production of cyclohexane-1,2-diol | |
| Zarchi | Polymer‐Supported Thiocyanate as New, Versatile and Efficient Polymeric Reagent for Conversion of Alkyl Halides to Corresponding Alkyl Thiocyanates under Mild Conditions | |
| JPS6452734A (en) | Production of fluorobenzaldehydes | |
| US4301301A (en) | Method for producing triphenylphosphine | |
| EP0253837B1 (en) | Catalytic method for producing fluoroaromatic compounds using branched alkyl pyridinium salts | |
| JP2936044B2 (en) | Trifluoropropylene carbonate and method for producing the same | |
| JPH10212281A (en) | Production of 3-carene epoxide | |
| JP3282357B2 (en) | Piperonal manufacturing method | |
| JPS5735537A (en) | Preparation of hexachloroacetone | |
| FR2440354A1 (en) | PROCESS FOR THE PREPARATION OF AN AMINOPHENOLIC ETHER BY REACTION OF AN ALKALINE AMINOPHENOLATE AND AN ALKYL HALIDE | |
| ES508421A0 (en) | "PROCEDURE FOR THE PREPARATION OF 2-HYDROXY-3-CHLOROPROPILTRIALCOHYLAMMONIUM CHLORIDE". | |
| EP0504285B1 (en) | Fluorocarbon compounds and processes for preparation thereof | |
| JPH0159266B2 (en) | ||
| JPS562923A (en) | Preparation of chlorinated toluene derivative | |
| EP0402892B1 (en) | Process for producing allyl bromides | |
| JPS5686146A (en) | Preparation of lower aliphatic isocyanate | |
| JPS6113694B2 (en) | ||
| JPS5731630A (en) | Preparation of bisphenolethane | |
| JPS56123972A (en) | Preparation of 1,3-dialkyl-4-benzoyl-5-hydroxypyrazole compound |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |