Process for the preparation of 2,3,5-trimethylhydroquinone diest

Details Process for the preparation of 2,3,5-trimethylhydroquinone diest Process for the preparation of 2,3,5-trimethylhydroquinone diest

1999-04-21

2000-08-15

Marschel, Ardin H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560231, C07C 6748

Patent

active

061039241

ABSTRACT:
Preparation of 2,3,5-trimethylhydroquinone diesters by rearrangement of 2,6,6-trimethylcyclohex-2-ene-1,4-dione (4-oxo-isophorone, ketoisophorone) in the presence of a solid, acid catalyst and an acylating agent, for example carboxylic acid anhydrides or carboxylic acid halides. The 2,3,5-trimethylhydroquinone diester may then optionally be saponified to the free 2,3,5-trimethylhydroquinone, which is a valuable building block in the synthesis of vitamin E.

REFERENCES:
patent: T900015 (1972-07-01), Thwcatt
patent: 4247720 (1981-01-01), Baudouin
patent: 5908956 (1999-06-01), Takahashi

Affiliated with

Also associated with

Rating

Process for the preparation of 2,3,5-trimethylhydroquinone diest does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of 2,3,5-trimethylhydroquinone diest, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of 2,3,5-trimethylhydroquinone diest will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2008685