The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 1990
Filed:
Nov. 04, 1988
Applicant:
Inventors:
James G Davidson, III, Holland, MI (US);
Brian S Swierenga, Holland, MI (US);
Assignee:
Warner-Lambert Company, Ann Arbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568812 ; 568705 ; 568634 ; 568640 ; 568655 ; 568807 ; 568808 ; 568809 ;
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.