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. 07, 1998
Filed:
Feb. 27, 1997
Joseph E Lynch, Plainfield, NJ (US);
Yao-Jun Shi, Edison, NJ (US);
Kenneth M Wells, Somerville, NJ (US);
Merck & Co., Inc., Rahway, NJ (US);
Abstract
The invention provides a process for regioselective substitution of trifluorobenzoate/trifluorobenzonitrile to afford the difluorobenzoate/difluorobenzonitrile in good yields. The resulting difluorobenzoate/difluorobenzonitrile can again be regioselectively substituted with a second nucleophile to give monofluorobenzoate/monofluorobenzonitrile also in good yields. This process is particularly useful for forming key intermediates in the synthesis of oxytocin antagonist compounds.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile