The present invention relates to a method for producing a binary look represented by formula 1, an alkene ligand and transition hexa alkyl represented by the formula 2 from the metal complex catalyst borazine. In both formula 1 and 2 both, R 1 may be the same or different represents an alkyl group. R 2 represents a hydrogen atom or an alkyl group, can be the same or different, and at least one R 2 is a hydrogen atom, R 3 may represent an alkyl group, the same or different. ; [Formula 1] ; [Formula 2]
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