Patent · US Expired

Process for the preparation of 3,5,5-trimethyl-cyclohex-2-ene-1,4-dione

US4092361A · kind A · utility

9Cited by

10References

10Claims

0Family size

Assignee

Rhone-Poulenc Industries · FR

Inventors

Michel Costantini · Val-de-Reuil, FR
Adrien Dromard · Val-de-Reuil, FR
Michel Jouffret · Francheville, FR

Key dates

Filing date	Dec 16, 1976
Grant date	May 30, 1978
Priority date	—
Expiry date	Dec 16, 1996

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C45/34
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

3,5,5-Trimethyl-cyclohex-2-ene-1,4-dione is prepared by a liquid phase oxidation of .beta.-isophorone using carbon black as catalyst in the presence of a base.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.