| 摘要 |
A process for the production of 1,5,9-cyclododecatriene comprises contacting in the range of 0 DEG to 200 DEG C. under autogenous pressure an acyclic 1,3 - conjugated diene hydrocarbon having from 4 to 10 carbon atoms per molecule with a catalyst produced by reacting (a) one mole of a nickel salt of an acidic organic compound having a pKa of 1-20 containing in an unreactive carbon skeleton from 1 to 25 carbon atoms and 1 or 2 acidic hydrogen atoms per molecule and only carbon hydrogen and oxygen with (b) 1 to 6 moles of an organo-metallic compound represented by the general formula MR3 where M is aluminium or boron and R is hydrogen, alkyl, aryl, alkaryl or aralkyl, at least one R group being other than hydrogen. The process may take place in the presence of an inert liquid diluent.ALSO:A catalyst is obtained by reacting one mole of a nickel salt of an acidic organic compound and 1 to 6 moles of an organo-boron or organo-aluminium compound containing alkyl, aryl, alkaryl or aralkyl group or groups. The acidic organic compounds which include carboxylic acids, carbinols, phenols, glycols and diketones have a pKa value of 1 to 20, an unreactive carbon skeleton of 1-25 carbon atoms, 1 or 2 acidic hydrogen atoms and only carbon hydrogen and oxygen in their structure. |
