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. 04, 1991
Filed:
Nov. 13, 1989
Anthony O King, Colonia, NJ (US);
Robert K Anderson, Plainsboro, NJ (US);
Richard E Shuman, Westfield, NJ (US);
Leonard M Weinstock, Belle Meade, NJ (US);
Merck & Co., Inc., Rahway, NJ (US);
Abstract
A process for introducing a 1,2 double bond into a compound of the formula ##STR1## which comprises the process of (a) treating the compound of formula I with oxalyl chloride; (b) brominating the product of step (a) followed by in situ dehydrobromination; (c) deprotecting the product of step (b) to yield the .alpha. and .beta. isomers; (d) dehydrobrominating the product of step (c), which results in the introduction of a double bond at the 1,2 position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile