Method for preparation of 2,3,5-trimethyl hydrochinone di-ester

Application Number: 00101990Application Date: 2000.02.04Publication Number: 1265390Publication Date: 2000.09.06Priority Information: 1999/2/11 DE 19905685.4International: C07C67/46;C07C69/017;C07C69/035Applicant(s) Name: Degussa Huels GmbHAddress: Inventor(s) Name: S. Crier;K. HusmacherPatent Agency Code: 11038Patent Agent: huang zexiongAbstract The invention relates to an improved process for the production of 2,3,5-trimethylhydroquinone diesters by rearrangement of 2,6,6-trimethyl-2-cyclohexene-1,4-dione(4-oxoisophorone, ketoisophorone) in the presence of a dissolved, acidic catalyst Read more