Wrought Type Patents (Class 470/196)
  • Process of making ketones
    Patent number: 5288915
    Abstract: Ketones are prepared by admixing at least one gem-dichloro compound with at least one acid such that the ketone wherein the keto-oxygen replaces the gem-dichloro group is formed. The reaction is exemplified by the reaction of 9,9-dichlorofluorene with an acid such that fluorenone is formed. This process has the advantage that no oxidizing agent is used.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: February 22, 1994
    Assignee: The Dow Chemical Company
    Inventor: Marlin E. Walters