Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1994-11-14
1996-08-13
Geist, Gary
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568343, C07C 4528, C07C 4534
Patent
active
055457614
ABSTRACT:
A method of manufacturing 2,6,6-trimethyl-2-cyclohexen-1,4-dione (ketoisophorone) from 3,5,5-trimethyl-2-cyclohexenone (alpha-isophorone). The alpha-isophorone is reacted with hydroperoxide in a solvent, and in the presence of a metal catalyst. The reaction converts the alpha-isophorone directly to ketoisophorone without the intermediate isomerization of alpha-isophorone to beta-isophorone (3,5,5-trimethyl-3-cyclohexenone).
REFERENCES:
patent: 3931327 (1976-01-01), Strickler et al.
patent: 3944620 (1976-03-01), Becker et al.
patent: 3960966 (1976-06-01), Widmer et al.
patent: 4898984 (1990-02-01), Bellut
Hosokawa et al., Chemistry Letters, pp. 1081-1082 (1983).
CA112: 76460b (1990).
Holland et al., Can. J. Chem., vol. 60, pp. 1919-1923 (1982).
Dawson Bryan T.
Pugach Joseph
Aristech Chemical Corporation
Frazier Barbara S.
Gavlik Robert R.
Geist Gary
Krayer William L.
LandOfFree
Method of making ketoisophorone via oxidation of isophorone with does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of making ketoisophorone via oxidation of isophorone with, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making ketoisophorone via oxidation of isophorone with will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1048933