JPS5566574A - Novel furan compound and its production - Google Patents
Novel furan compound and its productionInfo
- Publication number
- JPS5566574A JPS5566574A JP14141078A JP14141078A JPS5566574A JP S5566574 A JPS5566574 A JP S5566574A JP 14141078 A JP14141078 A JP 14141078A JP 14141078 A JP14141078 A JP 14141078A JP S5566574 A JPS5566574 A JP S5566574A
- Authority
- JP
- Japan
- Prior art keywords
- formula
- compound
- acid
- cyclopentenolone
- production
- 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
Abstract
NEW MATERIAL:Furan compound of formula I [R1 is alkenyl, alkynyl, formula II (R2 is H, methyl, halogen)].
EXAMPLE: 2,4-Dimethyl-3-allylfuran.
USE: Synthetic intermediate of agricultural chemicals as allethrin and drugs. Especially they can be derived to cyclopentenolone that is useful as an intermediate of insecticide.
PREPARATION: The dehydration of a novel compound of formula V is effected in the presence of a base as powdered glass or acid as mineral acid to give the objective compound of formula I. The product is subjected to chlorination or bromination in an alcohol of R3OH or electrolytic oxidation to form a compound of formula III, followed by reaction with a lower aliphatic carboxylic acid or phenol or mineral acid to give readily cyclopentenolone of formula IV in high yield.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14141078A JPS5566574A (en) | 1978-11-15 | 1978-11-15 | Novel furan compound and its production |
US06/089,351 US4282372A (en) | 1978-11-01 | 1979-10-30 | Process for producing cyclopentenolones |
DE7979104240T DE2963855D1 (en) | 1978-11-01 | 1979-10-31 | Process for preparing 4-hydroxy-2-cyclopenten-i-ones, 2-methyl-2,5-dimethoxy-2,5-dihydrofurans and a process for their preparation |
EP79104240A EP0010761B1 (en) | 1978-11-01 | 1979-10-31 | Process for preparing 4-hydroxy-2-cyclopenten-i-ones, 2-methyl-2,5-dimethoxy-2,5-dihydrofurans and a process for their preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14141078A JPS5566574A (en) | 1978-11-15 | 1978-11-15 | Novel furan compound and its production |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5566574A true JPS5566574A (en) | 1980-05-20 |
Family
ID=15291349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14141078A Pending JPS5566574A (en) | 1978-11-01 | 1978-11-15 | Novel furan compound and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5566574A (en) |
-
1978
- 1978-11-15 JP JP14141078A patent/JPS5566574A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5690031A (en) | Preparation of aromatic aldehyde | |
JPS5225733A (en) | Process for preparation of benzaldehydes | |
JPS5566574A (en) | Novel furan compound and its production | |
JPS559024A (en) | Tetrahydro ml-236b, its derivative, and remedy for hyperlipemia comprising it as active constituent | |
JPS5798232A (en) | 1-(6-methoxy-2-naphthyl)-2-oxy-1-alkanone acetal | |
JPS5239642A (en) | A process for preparing protocatechualdehyde | |
JPS5253839A (en) | Preparation of 2-(2,2-dihalovinyl) cyclopropane crboxylic acids | |
JPS57171930A (en) | Production of 2,2-dimethyl-6-methylene-1- cyclohexaneacetaldehyde and its novel intermediate | |
JPS5655340A (en) | Preparation of mandelic acid | |
JPS5618936A (en) | Production of phenylacetic acid | |
JPS5566572A (en) | Novel epoxyketone and its preparation | |
JPS57197279A (en) | Novel hexaminum compound and its preparation | |
JPS5770837A (en) | Preparation of carboxylic acid derivative | |
JPS5711957A (en) | Novel aldehyde compound and its preparation | |
JPS5750940A (en) | Novel compound 8-hydroxy-8-methylnonanoic acid produced by microorganism and its preparation | |
JPS56120677A (en) | Keto-gamma-butyrolactone derivative | |
JPS5772963A (en) | Alpha-(2-pyridyl)arylacetaldehyde | |
JPS5683486A (en) | Preparation of 1,3-benzodioxol-5-ol | |
JPS5636434A (en) | Preparation of tartaric acid or epoxysuccinic acid diester | |
JPS5754167A (en) | Pyroglutamic acid derivative and its preparation | |
JPS55160740A (en) | Preparation of cyclopentenolone | |
JPS5573647A (en) | Preparation of homogeneous solution containing acetimide ether hydrochloric acid salt | |
JPS5615236A (en) | Production of cyclopentenolone | |
JPS55160741A (en) | New cyclopentenone compound and its preparation | |
JPS5625134A (en) | Preparation of mono-substituted acetonedicarboxylic acid ester |