公开(公告)号：US3592826A

公开(公告)日：1971-07-13

申请号：US3592826D

申请日：1967-05-22

Applicant: UNION CARBIDE CORP

Inventor： MARCUS ERICH ,  CHAN JOHN KAI-FAI

IPC: C07C49/12 ,  C07C51/00 ,  C07C51/373 ,  C07D309/38 ,  C07D7/16

CPC classification number: C07D309/38 ,  C07C49/12 ,  C07C51/00 ,  C07C51/373 ,  Y02P20/582 ,  C07C59/185

Abstract: IMIDAZOLE CATALYZED-REACTIONS FOR THE PRODUCTION OF DEHYDROACETIC ACID. 2,4,6-HEPTANETRIONE AND 2,6-DIMETHYL-4PYRANONE FROM DIKETENE ARE DISCLOSED. THE EXAMPLES ILLUSTRATE THE USE OF 1-METHYLIMIDAZOLE; 1-ETHYLIMIDAZOLE; 1-ISOPROPYLIMIDAZOLE; 1-OCTYLIMIDAZOLE; 1,2-DIMETHYLIMIDAZOLE; 1,2-DIETHYL-4-METHYLIMIDAZOLE TO CATALYZE THE REACTIONS.