Patents by Inventor Norman A. Fishel

Norman A. Fishel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Production of thiophenols
    Patent number: 4088698
    Abstract: A method for preparing thiophenolic compounds is described comprising reacting a phenol and hydrogen sulfide in the presence of a vanadia catalyst. It is preferred to carry out the process of this invention at low pressures, i.e. at pressures lower than 100 psi, atmospheric pressure being very suitable, although the process is operable at subatmospheric pressures. Preferred phenols, catalysts and reaction conditions are also described.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: May 9, 1978
    Assignee: Monsanto Company
    Inventors: Norman A. Fishel, David E. Gross
  • Process for production of orthophenylphenol
    Patent number: 4035428
    Abstract: A process for production of orthophenylphenol is disclosed. More specifically, the invention relates to the conversion of phenol or diphenyl ether into orthophenylphenol in a two-stage process in which dibenzofuran is an intermediate.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: July 12, 1977
    Assignee: Monsanto Company
    Inventors: Norman A. Fishel, David E. Gross
  • Ceria catalyzea conversion of phenols to dibenzofurans
    Patent number: 4013694
    Abstract: A method for preparation of heterocyclic fused ring compounds by dehydration and dehydrogenation of certain phenolic compounds in the presence of a cerium oxide catalyst is disclosed. Preferred phenolic compounds, catalytic materials, and reaction conditions also are described.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: March 22, 1977
    Assignee: Monsanto Company
    Inventor: Norman A. Fishel
  • Conversion of diphenylethers to dibenzofurans using catalysts containing ceria
    Patent number: 4009185
    Abstract: A method for preparation of heterocyclic fused ring compounds by dehydrogenation of certain aromatic ether compounds in the presence of a cerium oxide catalyst is disclosed. Preferred aromatic ether compounds, catalytic materials, and reaction conditions also are described.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: February 22, 1977
    Assignee: Monsanto Company
    Inventor: Norman A. Fishel
  • Ceria catalyzed conversion of phenols to dibenzofurans in the presence of water vapor
    Patent number: 4008254
    Abstract: A method for preparation of heterocyclic fused ring compounds by dehydration and dehydrogenation of certain phenolic compounds in the presence of water vapor and in the presence of a cerium oxide catalyst is disclosed. Preferred phenolic compounds, catalytic materials, and reaction conditions also are described.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: February 15, 1977
    Assignee: Monsanto Company
    Inventors: David E. Gross, Norman A. Fishel
  • Production of orthophenylphenols
    Patent number: 4000203
    Abstract: The present invention relates to a process for the preparation of orthophenylphenol and derivatives thereof, specifically by the reaction of dibenzofuran and its derivatives with hydrogen, at elevated temperatures, in the presence of a catalyst comprised of one or more Group VIII elements dispersed on a porous magnesia support.
    Type: Grant
    Filed: August 8, 1975
    Date of Patent: December 28, 1976
    Assignee: Monsanto Company
    Inventors: David E. Gross, Norman A. Fishel