Patents Examined by Anton H. S. Sutto
  • Patent number: 4760160
    Abstract: The invention provides a process for the preparation of 4-fluorophenols of formula ##STR1## wherein n is 0 to 3, each R independently represents a halogen atom or an alkyl, alkoxy, cyano or optionally substituted amino group and Z represents a hydrogen or halogen atom or a cyano group characterized by reacting a fluorohalocyclohexadienone of formula ##STR2## wherein X represents a halogen atom, with a compound of formula A-Z, wherein Z is as defined above and A represents a hydrogen or alkali metal atom, provided that when both A and Z are hydrogen, the reaction is carried out in the additional presence of a Group VIII metal hydrogenation catalyst, and 4-fluorophenols of formula I per se wherein Z is a CN group.
    Type: Grant
    Filed: January 14, 1986
    Date of Patent: July 26, 1988
    Assignee: Shell Oil Company
    Inventors: Jan H. H. Meurs, David W. Sopher