| 摘要 |
PURPOSE:To hydrogenate a compound containing an olefinically unsaturated double bond selectively under mild conditions, by using a stable easily handleable catalyst consisting of titanocenediaryl compound and an alkyllithium in such an amount as to require no deashing. CONSTITUTION:An olefinically unsaturated double bond in a compound containing the olefinically unsaturated double bond is selectively hydrogenated in an inert organic solvent. In the process, a catalyst consisting of a titanocenediaryl compound expressed by the formula (R1-R6 are H or 1-4C alkyl, provided that one or more of R1-R3 and R4-R6 are H), e.g. diphenylbis(eta-dicyclopentadienyl) titanium, and an alkyllithium compound expressed by the formula R-Li (R is 1-6C alkyl), e.g. n-butyllithium, is used as a catalyst. The above-mentioned method is preferably applied particularly to conjugated diene polymers. |
