PREPARATION METHOD OF LIGAND COMPOUNDS

摘要

PURPOSE: A method for preparing monocyclopentadieney-conjugated hydroquinolin compounds are provided to control particles size of ligand precursor and to ensure convenience. CONSTITUTION: A method for pareparing ligand compounds of chemical formula 6 comprises: a step of reacting a compound of chemical formula 1 with n-BuLi to prepare a compound of chemical formula 2; a step of reacting the compound of chemical formula 2 with CO_2 and reacting with t-BuLi to prepare a compound of chemical formula 3; a step of reacting with compounds of chemical formulas 3 and 4 to prepare a compound of chemical formula 5; and a step of reacting the compound of chemical formula 5 with 2.5-11.0N hydrochloric acid.