Patents Assigned to Degussa Dental GmbH & Co. KG
  • Process for preparing esterified chroman compounds
    Patent number: 6329535
    Abstract: A process for preparing esterified chroman compounds from 2,6,6-trimethylcylohex-2-ene-1,4-dione, wherein the esterified intermediates are reacted directly to give the desired chroman derivatives without an additional purification step.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: December 11, 2001
    Assignee: Degussa Dental GmbH & Co. KG
    Inventors: Horst Weigel, Steffen Krill, Hans Joachim Hasselbach, Klaus Huthmacher