JPS56169684A - Preparation of furan substitution product - Google Patents
Preparation of furan substitution productInfo
- Publication number
- JPS56169684A JPS56169684A JP18488680A JP18488680A JPS56169684A JP S56169684 A JPS56169684 A JP S56169684A JP 18488680 A JP18488680 A JP 18488680A JP 18488680 A JP18488680 A JP 18488680A JP S56169684 A JPS56169684 A JP S56169684A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- furan
- dehydrohalogenation
- halomethyl
- propene
- 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 which is a synthetic intermediate for medicines,etc. simply at a low cost, by reacting a phenylacetyl halide with a 2-halomethyl 3-halo-1-propene, and cyclizing the reaction product through the dehydrohalogenation.
CONSTITUTION: A phenylacetyl halide of formula I (X is halogen) is reacted with a 2-halomethyl-3-halo-1-propene of formula II at a molar ratio betwen the former and the latter of 1:1W5, preferably in the presence of a Friedel-Crafts catalyst, e.g. AlCl3, and/or an inert solvent, e.g. methylene dichloride, to give compounds of formulas III and/or IV, which are then cyclized with a dehydrohalogenating agent, e.g. pyridine or triethylamine, through the dehydrohalogenation and esterified in the presence of a carboxylic acid under heating to afford the aimed furan substitution product of formula V.
USE: Particularly a component constituting stnthetic pyrethroid insecticides.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18488680A JPS56169684A (en) | 1980-12-24 | 1980-12-24 | Preparation of furan substitution product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18488680A JPS56169684A (en) | 1980-12-24 | 1980-12-24 | Preparation of furan substitution product |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7294080A Division JPS56167678A (en) | 1980-05-30 | 1980-05-30 | Preparation of furan substitution product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56169684A true JPS56169684A (en) | 1981-12-26 |
Family
ID=16161028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18488680A Pending JPS56169684A (en) | 1980-12-24 | 1980-12-24 | Preparation of furan substitution product |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56169684A (en) |
-
1980
- 1980-12-24 JP JP18488680A patent/JPS56169684A/en active Pending
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