| 摘要 |
<p>TWO STAGE CATALYTIC HYDROGENATION OF OLEFINICALLY UNSATURATED DINITRILES An olefinically unsaturated dinitrile of the formula wherein each R is an alkylene or alkylidene radical and Z is an alkyl radical which is converted to the corresponding saturated dinitrile in the presence of hydrogen a palladium catalyst and at least one alkanol having 1 to 3 carbon atoms. The saturated dinitrile is then converted to the corresponding diamine in the presence of hydrogen, a secondary amine formation suppressant, a ruthenium catalyst and at least one diluent selected from the group consisting of tertiary alkanols having 4 to 12 carbon atoms, saturated hydrocarbons having 4 to 12 carbon atoms, and ethers having 4 to 12 carbon atoms.</p> |
