JPS5681531A - Preparation of cyclopentenolones - Google Patents

Preparation of cyclopentenolones

Info

Publication number
JPS5681531A
JPS5681531A JP15945479A JP15945479A JPS5681531A JP S5681531 A JPS5681531 A JP S5681531A JP 15945479 A JP15945479 A JP 15945479A JP 15945479 A JP15945479 A JP 15945479A JP S5681531 A JPS5681531 A JP S5681531A
Authority
JP
Japan
Prior art keywords
formula
furancarbinol
compound shown
compound
metal salt
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
Application number
JP15945479A
Other languages
Japanese (ja)
Other versions
JPS6257173B2 (en
Inventor
Kenji Saito
Hiroshi Yamachika
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP15945479A priority Critical patent/JPS5681531A/en
Priority to US06/211,225 priority patent/US4510329A/en
Priority to HU802877A priority patent/HU186373B/en
Priority to EP80107603A priority patent/EP0035060B1/en
Priority to DE8080107603T priority patent/DE3063194D1/en
Priority to DK522380A priority patent/DK151795C/en
Publication of JPS5681531A publication Critical patent/JPS5681531A/en
Publication of JPS6257173B2 publication Critical patent/JPS6257173B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the titled compound useful as an alcohol ingredient of an agricultural chemical directly by one step in a short time, in high yield, and extremely advantageously in industrial operations, treating a furancarbinol compound in a water solvent in the presence of a metal salt.
CONSTITUTION: A furan carbinol compound shown by the formula I (R1 is 1W6C alkyl, 1W6C alkenyl having no unsaturated bond at the end of linkage, alkynyl, etc.) is dissolved or suspended in an aqueous solution dissolving a metal salt, e.g., MgCl2, etc., heated to 20W200°C, and a reaction is carried out while pH being adjusted to 3W7 by buffer solutions of an acid and base. When the furancarbinol shown by the formula I is consumed, pH is adjusted to 5W10, and the reaction is carried out for several hours to give the desired compound shown by the formula II. The furancarbinol compound shown by the formula I is obtained by reacting methylfurfural shown by the formula III with an organometallic halogen compound shown by the formula R1MX (M is Mg, Zn, etc.; X is Cl, Br, etc.).
COPYRIGHT: (C)1981,JPO&Japio
JP15945479A 1979-12-07 1979-12-07 Preparation of cyclopentenolones Granted JPS5681531A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP15945479A JPS5681531A (en) 1979-12-07 1979-12-07 Preparation of cyclopentenolones
US06/211,225 US4510329A (en) 1979-12-07 1980-11-28 Process for preparing cyclopentenolones
HU802877A HU186373B (en) 1979-12-07 1980-12-03 Process for producing cyclopentanone derivatives
EP80107603A EP0035060B1 (en) 1979-12-07 1980-12-04 Process for preparing cyclopentenolones
DE8080107603T DE3063194D1 (en) 1979-12-07 1980-12-04 Process for preparing cyclopentenolones
DK522380A DK151795C (en) 1979-12-07 1980-12-05 PROCEDURE FOR THE PREPARATION OF CYCLOPENTENOLONS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15945479A JPS5681531A (en) 1979-12-07 1979-12-07 Preparation of cyclopentenolones

Publications (2)

Publication Number Publication Date
JPS5681531A true JPS5681531A (en) 1981-07-03
JPS6257173B2 JPS6257173B2 (en) 1987-11-30

Family

ID=15694107

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15945479A Granted JPS5681531A (en) 1979-12-07 1979-12-07 Preparation of cyclopentenolones

Country Status (1)

Country Link
JP (1) JPS5681531A (en)

Also Published As

Publication number Publication date
JPS6257173B2 (en) 1987-11-30

Similar Documents

Publication Publication Date Title
JPS54148788A (en) 1,2-disubstituted-4-halogenoimidazole-5-acetic acid derivative and its preparation
JPS5562043A (en) Preparation of phenoxycarboxylic acid derivative
JPS562929A (en) Preparation of optically active cyclopentenolone
JPS5681531A (en) Preparation of cyclopentenolones
JPS57192392A (en) Production of 3-alkoxymethylcephalosporin
JPS57171940A (en) Purification and concentration of quaternary ammonium compound
JPS5681530A (en) Preparation of 3-oxocyclopentene compound
NO170279C (en) PROCEDURE FOR PREPARING PIPERIDINYLYCYLOPENTYLPHYTENIC ACID ERIVATES
JPS56161344A (en) Preparation of 3-oxocyclopentene compound
JPS56154430A (en) Preparation of cyclopentenolone
JPS572276A (en) 1-methyl-5- n-alkyl-n-chloroacetylamino pyrazole-4- carboxylic acid ester derivative, its preparation, and herbicide for paddy rice field
JPS567752A (en) Preparation of 2- sulfophenylhydrazino -butane diacid derivative
JPS57102832A (en) Preparation of cyclopentenolones
JPS5798234A (en) Preparation of cyclopentenolone
JPS56166144A (en) Preparation of cyclopentenolone
JPS5555178A (en) Pyran derivative
JPS57145858A (en) Preparation of aziridine-2-carboxylic acid salt
JPS5587769A (en) Preparation of pyrroleacetic acid derivative
EP0357792A4 (en) Process for preparing pyridine-2,3-dicarboxylic acid compounds
JPS5668668A (en) Preparation of 2-indolinones
JPS5455520A (en) Preparation of zinc glycolate
JPS5748973A (en) Preparation of 2-hydroxyquinoxaline derivative
JPS5721333A (en) Preparation of cyclopentenolone
JPS552621A (en) Preparation of n-alkyl-benzoxa(or thia)zolone derivative
JPS54145633A (en) Preparation of 2,6-dicyanophenol derivative