| 摘要 |
A method for dimerizing an olefin, which comprises dimerizing an olefin in the presence of a catalyst, wherein a nickel compound, an organic aluminum compound and a phosphite compound of the formula (I): <IMAGE> (I) wherein each of R1 and R2 which may be the same or different, is a hydrocarbon group, each of R3 to R8 which may be the same or different, is a substituent containing no oxygen atom, or a hydrogen atom, W is a substituted or unsubstituted aromatic hydrocarbon group, and x is 0 or 1, are used as the catalyst.
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