JPS56110684A - Preparation of substituted furan - Google Patents
Preparation of substituted furanInfo
- Publication number
- JPS56110684A JPS56110684A JP1317880A JP1317880A JPS56110684A JP S56110684 A JPS56110684 A JP S56110684A JP 1317880 A JP1317880 A JP 1317880A JP 1317880 A JP1317880 A JP 1317880A JP S56110684 A JPS56110684 A JP S56110684A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- meth
- give
- dehydrohalogenating
- ring formation
- 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.)
- Pending
Links
Landscapes
- Furan Compounds (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as a synthetic intermediate for drugs, agricultural chemicals, and industrial reagents in a short process readily and inexpensively, by dehydrohalogenating a reaction product of an acid halide and a (meth) allyl halide to carry out ring formation.
CONSTITUTION: An acid halide shown by the formula I (R is acyl group residue; X is halogen) is reacted with a (meth) allyl halide shown by the formula II (R' is H or methyl) in an inert solvent, e.g., haxane, CCl4, etc., in the presence of a Fridel-Craft catalyst (e.g., aluminum chloride, tin tetrachloride, etc.) to give a compound shown by the formula III. This compound shown by the formula III is subjected to ring formation using a dehydrohalogenating agent at 140W250°C, preferably 160W220°C, to give a substituted furan shown by the formula IV. A tertiary amine (e.g., collidine, tributylamine, etc.) is used as the dehydrohalogenating agent. The short process improves the total yield.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1317880A JPS56110684A (en) | 1980-02-05 | 1980-02-05 | Preparation of substituted furan |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1317880A JPS56110684A (en) | 1980-02-05 | 1980-02-05 | Preparation of substituted furan |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56110684A true JPS56110684A (en) | 1981-09-01 |
Family
ID=11825923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1317880A Pending JPS56110684A (en) | 1980-02-05 | 1980-02-05 | Preparation of substituted furan |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56110684A (en) |
-
1980
- 1980-02-05 JP JP1317880A patent/JPS56110684A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5690031A (en) | Preparation of aromatic aldehyde | |
JPS5721388A (en) | Condensed pyrazole derivative | |
JPS5612357A (en) | Production of polymethylenepolyphenylpolycarbamate | |
JPS56110684A (en) | Preparation of substituted furan | |
JPS5583791A (en) | 7-methoxycephalosporin derivative and its preparation | |
JPS5791982A (en) | Preparation of 5-methylfurfural | |
JPS57192340A (en) | Isoprenylamine derivative | |
JPS56128769A (en) | Amino-5-fluorouracil derivative and its preparation | |
JPS5782337A (en) | Preparation of pivaloyl chloride and aromatic carboxylic acid chloride | |
JPS5735561A (en) | Novel alpha- mercaptomethyl acrylic acid derivative | |
JPS55164651A (en) | Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride | |
JPS57120570A (en) | Preparation of 1,3-dialkyl-2-imidazolidinone | |
JPS5671050A (en) | Preparation of amino acid ester | |
JPS56164144A (en) | Preparation of novel aryloxyacid derivative | |
JPS5731630A (en) | Preparation of bisphenolethane | |
JPS56167678A (en) | Preparation of furan substitution product | |
JPS57203030A (en) | Preparation of hydroxyphenyl-substituted fatty acid | |
JPS57175133A (en) | Nulear chlorinating method of toluene | |
JPS5459223A (en) | Preparation of azo compounds | |
JPS56169683A (en) | Preparation of 2-benzyl-4-halomethylfuran | |
JPS57200378A (en) | Halogenated pgi2 and its preparation | |
JPS56123972A (en) | Preparation of 1,3-dialkyl-4-benzoyl-5-hydroxypyrazole compound | |
JPS5579358A (en) | Preparation of polyethylene polyphenyl carbamate | |
JPS5594368A (en) | Preparation of 1,3-dimethyl-4-(2,4-dichlorobenzoyl)-5- pyrazolyl4-toluenesulfonate | |
JPS57145860A (en) | 2-halomethyl-6-phenoxypyridine derivative and its preparation |