Method For Preparing Cocatalyst Compound Using Anhydrous Hydrocarbon Solvent

A method for preparing a compound represented by the following Formula 1, the method comprising:

• a step of reacting a compound represented by the following Formula 2 and a compound represented by the following Formula 3 in the presence of an anhydrous hydrocarbon solvent:
• [L-H]+[Z(A)4]− [Formula 1]
• [M]+[Z(A)4]− [Formula 2]
• [L-H]+[X]− [Formula 3]
• where
• L is a Lewis base containing nitrogen, sulfur or phosphorous,
• Z is an element in group 13,
• each A is independently an aryl of 6 to 20 carbon atoms or an alkyl of 1 to 20 carbon atoms, where one or more hydrogen atoms are optionally substituted with a substituents,
• and the substituent of A is independently halogen, a hydrocarbyl of 1 to 20 carbon atoms, an alkoxy of 1 to 20 carbon atoms, or an aryloxy of 6 to 20 carbon atoms,
• M is a metal in group 1, and
• X is a halogen element.