公开(公告)号：USRE46151E1

公开(公告)日：2016-09-20

申请号：US14321865

申请日：2014-07-02

Applicant: BASF SE

Inventor： Gabriele Gralla ,  Gunnar Heydrich ,  Klaus Ebel ,  Wolfgang Krause

IPC: C07C39/16 ,  C07C39/12 ,  C07C45/74 ,  C07C37/07 ,  C07C37/20 ,  C07C37/62

CPC classification number: C07C45/74 ,  C07C37/07 ,  C07C37/20 ,  C07C37/62 ,  C07C49/613 ,  C07C49/653 ,  C07C39/15 ,  C07C39/367

Abstract: The present invention relates to a process for preparing 4,4′-[1-(trifluoromethyl)alkylidene]bis(2,6-diphenylphenols), in particular for preparing 4,4′-[1-(trifluoromethyl)ethylidene]bis(2,6-diphenylphenol), which comprises the self-condensation of cyclohexanone in the presence of a basic catalyst to form tricyclic condensation products, dehydrogenation of the resulting tricyclic condensation products in the presence of a supported transition metal catalyst in the condensed phase to form 2,6-diphenylphenol and reaction of the 2,6-diphenylphenol with a trifluoromethyl ketone. The invention further provides an improved process for preparing 2,6-diphenylphenol by aldol self-condensation of cyclohexanone.

Abstract translation: 本发明涉及一种制备4,4' - [1-（三氟甲基）亚烷基]双（2,6-二苯基苯酚）的方法，特别是制备4,4' - [1-（三氟甲基）亚乙基]双（ 2,6-二苯基苯酚），其包括环己酮在碱性催化剂存在下的自缩合以形成三环缩合产物，所得三环缩合产物在冷凝相中负载的过渡金属催化剂存在下脱氢形成 2,6-二苯基苯酚和2,6-二苯基苯酚与三氟甲基酮的反应。 本发明还提供了通过环己酮的醛醇自缩合制备2,6-二苯基苯酚的改进方法。