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:
Jun. 21, 1977
Filed:
Sep. 29, 1975
Applicant:
Inventor:
Wayne O Johnson, Warminster, PA (US);
Assignee:
Rohm and Haas Company, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2604 / ; 2605 / ;
Abstract
Phenoxybenzoic acids and esters of the formula ##STR1## wherein R is hydrogen or alkyl and X is hydrogen or chlorine can be prepared by reacting the disalt of 3-hydroxybenzoic acid with a 3-chloro-4-halobenzotrifluoride. These phenoxybenzoic acids and esters can then be selectively nitrated to give the corresponding 2-nitro-5-(substituted)phenoxybenzoic acids and esters. The nitrated esters can also be prepared by first nitrating the corresponding acid and then esterifying with an appropriate alcohol.