申请人:Univation Technologies, LLC
公开号:US10239809B2
公开(公告)日:2019-03-26
New methods of preparing bridged bi-aromatic ligands are disclosed. The methods employ direct di-ortho-lithiation of aromatic rings of bridged protected bi-aromatic diphenols. The ligands may be used to prepare transition metal compounds useful as catalysts in olefin polymerization.
本发明公开了制备桥接双芳香族配体的新方法。这些方法采用桥接的受保护双芳香族二酚的芳香环的直接二正硫化反应。这些配体可用于制备过渡金属化合物,作为烯烃聚合的催化剂。