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:
Dec. 03, 1985
Filed:
May. 25, 1984
Rhone-Poulenc Sante, Courbevoie, FR;
Abstract
.alpha.,.delta.-Diethylenic carbonyl compounds of the formula ##STR1## are made by an oxy-Cope rearrangement of an acetylenic alcohol of the formula ##STR2## in the presence of a catalyst based on a metal of Group Ib of the periodic table or palladium. In the formulae (I) and (II), R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, each denote a hydrogen atom or a hydrocarbon radical R.sub.2 and R.sub.3 being capable together of forming an alkylene radical (--CH.sub.2 --).sub.n in which one or more carbon atoms may be substituted by one or more alkyl radicals containing 1 to 4 carbon atoms, n is 3 to 20 inclusively and R.sub.5 denotes a hydrogen atom.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile