| abstract |
(57) [Summary] [PROBLEMS] To efficiently and highly selectively 1-from ethylene. Hexene is manufactured. An ACrB n (where n is an integer of 1 to 3) in the presence of hydrogen or in the presence of hydrogen and ethylene. A is a neutral polydentate ligand having a tripod-type structure; Represents a chromium atom, and B represents one or more selected from the group consisting of a hydrogen atom, a halogen atom, and a linear or branched alkyl group. A) a chromium complex and a alkylaluminoxane, or a chromium complex and an alkylaluminoxane and an alkyl metal compound, or a chromium complex and two or more hydroxy groups having a tripod-type neutral polydentate ligand Is trimerized using a catalyst comprising a compound having the formula (I) and an alkyl metal compound. |