Patents by Inventor Brian S. Swierenga

Brian S. Swierenga 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).

  • Substituted benzenemethanol compounds, intermediates thereof, and preparation thereof
    Patent number: 4940822
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, halo, halo-substituted alkyl, alkyl, cycloalkyl, aralkyl, aryl, heterocyclic, alkoxy, alkaryl, aryloxy, thioalkoxy, nitro, or N,N-dialkylamino are prepared by reacting 1-bromo-4-(trifluoromethyl)benzene with n-butyl lithium; reacting the product with a benzaldehyde of the formula: ##STR2## to produce a novel intermediate such as lithium 4-(trifluoromethyl)-.alpha.-]4-(trifluoromethyl)phenyl]benzenemethanol, and then reacting the lithium product with an acid or acid salt.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: July 10, 1990
    Assignee: Warner-Lambert Company
    Inventors: James G. Davidson, III, Brian S. Swierenga