Organic metal complex catalyst for olefin metathesis reaction

An organic metal complex catalyst for olefin metathesis reaction, which is used in the olefin metathesis reaction and comprises a chemical structure represented by the following Formula (1):

• in the Formula (1),
• M is a coordination center and represents an Ru atom or an ion thereof,
• R1, R2 and R3 may be the same or different, and each represents at least one substituent selected from the group consisting of hydrogen atom, an alkyl group, an alkoxy group, an alkenyl group, an alkynyl group, and an aryl group,
• R4, R5, R6, and R7 may be the same or different, and each represents at least one substituent selected from the group consisting of hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkenyl group, an alkynyl group, an aryl group, hydroxy group, a hydroxylate group, thiocarboxy group, dithiocarboxy group, sulfo group, sulfino group, oxycarbonyl group, carbamoyl group, hydradinocarbonyl group, amidino group, cyano group, isocyano group, cyanato group, isocyanato group, thiocyanato group, isothiocyanato group, formyl group, oxo group, thioformyl group, thioxo group, mercapto group, amino group, imino group, hydrazino group, allyloxy group, sulfide group, nitro group, and silyl group,
• X represents a halogen atom which is capable of coordinating to the coordination center M,
• L represents a phosphorus ligand which is capable of coordinating to the coordination center M, and
• R8 represents an alkyl group, an alkoxy group, an alkenyl group, an alkynyl group, or an aryl group having 3 to 20 carbon atoms.