The present invention relates to a novel fulvene compound and a preparation method thereof, and more particularly to a fulvene compound having substituted groups in the 2- and 5-positions, prepared from an unsaturated ketone having a substituted group in the β-position and a halogen atom in the α-position, and a preparation method thereof. The present invention also relates to a metallocene catalyst having a substituted group in the α-position carbon of the bridge of the cyclopentadienyl group only by reaction of a fulvene compound and an anion group including the cyclopentadienyl group, and a preparation method of a polyolefin copolymer using the same.
本发明涉及一种新型富烯化合物及其制备方法,更具体地说,涉及一种在2-和5-位上具有取代基的富烯化合物,其由具有β-位取代基和α-位卤素原子的不饱和酮制备而成,以及其制备方法。本发明还涉及一种
金属茂催化剂,其仅通过富烯化合物和包括茂基团的阴离子基团的反应,在茂基团桥碳的α-位置具有取代基,以及使用该催化剂制备聚烯烃共聚物的制备方法。