Title:
MANUFACTURE OF 3-METHYL-2-BUTEN-4-OLIDE
Document Type and Number:
Japanese Patent JPS60248681
Kind Code:
A
Abstract:
The invention relates to a process for preparing 3-methyl-2-butene-4-olide by the codimerization of methylenecyclopropane with carbon dioxide (CO2) in the presence of organic complex compounds of transistion metals, which process is characterized in that the codimerization is carried out at a temperature of 100 DEG C. to 200 DEG C. in the presence of palladium(O) compounds which are stable in the reaction mixture up to 200 DEG C. and with CO2 under a pressure of 10 to 110 bar, optionally in the presence of a solvent.
Inventors:
PAURU BINGAA
HANSU YOAHIMU BUAINTSU
HANSU YOAHIMU BUAINTSU
Application Number:
JP1918085A
Publication Date:
December 09, 1985
Filing Date:
February 01, 1985
Export Citation:
Assignee:
STUDIENGESELLSCHAFT KOHLE MBH
International Classes:
B01J31/00; C07B61/00; C07C1/00; C07C13/39; C07C67/00; C07D307/58; C07D315/00; (IPC1-7): B01J31/22; C07C13/39; C07D307/58
Attorney, Agent or Firm:
Aoyama Aoi