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. 30, 1986
Filed:
Feb. 08, 1985
Sagami Chemical Research Center, Tokyo, JP;
Abstract
A method for preparing a cis-bicyclo[3.3.0]octylidene derivative represented by the formula: ##STR1## wherein R.sup.1 is a hydrogen atom or an alkyl group; R.sup.2 is a hydrogen atom or a protective group for hydroxyl group; and Y is ##STR2## where R.sup.3 is a hydrogen atom or a protective group for hydroxyl group; R.sup.4 is a hydrogen atom or a straight, branched or cyclic alkyl group, alkenyl group or alkynyl group; and X is a group represented by CH.dbd.CH or C.tbd.C, comprises carrying out the catalytic hydrogenation reaction of a (1-alkenyl)-cis-bicyclo[3.3.0]octene derivative represented by the formula: ##STR3## wherein R.sup.1, R.sup.2 and Y have the same meanings as defined above, in the presence of a metal carbonyl compound or its complex represented by the formula: