Patents by Inventor Brian F. Becnel

Brian F. Becnel 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 nabumetone or precursors thereof
    Patent number: 5907069
    Abstract: In producing nabumetone or precursor thereof, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl bromide or methyl chloride, in a halogen-free liquid solvent comprising at least about 40% by weight of one or more compounds of the formula RZ where R is a hydrogen atom or an alkyl group, and Z is a hydroxyl group or a cyanide group with the proviso that if Z is a cyanide group, R is an alkyl group, and in the presence of at least one strong base; and (b) recovering and purifying 2-bromo-6-methoxynaphthalene so formed.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: May 25, 1999
    Assignee: Albemarle Corporation
    Inventors: Brian F. Becnel, Mahmood Sabahi, Kevin J. Theriot
  • Production of racemic 2-(6-methoxy-2-naphthyl) propionic acid of precursors thereof
    Patent number: 5792886
    Abstract: In producing (.+-.)-2-(6-methoxy-2-naphthyl)propionic acid or precursor thereof from 2-bromo-6-methoxynaphthalene, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl chloride in a solvent comprising one or more compounds, RZ, where R is a hydrogen atom or an alkyl group, and Z is --OH or --CN provided that if Z is --CN, R is alkyl, and in the presence of a strong base; and (b) recovering and purifying 2-bromo-6-methoxynaphthalene so formed.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: August 11, 1998
    Assignee: Albemarle Corporation
    Inventors: Mahmood Sabahi, Kevin J. Theriot, Brian F. Becnel
  • Production of nabumetone or precursors thereof
    Patent number: 5756851
    Abstract: In producing nabumetone or precursor thereof, use is made of 2-bromo-6-methoxynaphthalene formed by (a) methylating 6-bromo-2-naphthol with methyl bromide or methyl chloride, in a halogen-free liquid solvent comprising at least about 40% by weight of one or more compounds of the formula RZ where R is a hydrogen atom or an alkyl group, and Z is a hydroxyl group or a cyanide group with the proviso that if Z is a cyanide group, R is an alkyl group, and in the presence of at least one strong base; and (b) recovering and purifying 2-bromo-6-methoxynaphthalene so formed.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: May 26, 1998
    Assignee: Albemarle Corporation
    Inventors: Brian F. Becnel, Mahmood Sabahi, Kevin J. Theriot