专利检索 ap:("ARISTECH CHEMICAL CORPORARION") AND inv:"RUBINO MARK R" 第 1 页

1.

发明公开
METHOD OF MAKING 1,1-BIS-(4-HYDROXYPHENYL)-3,3,5-TRIMETHYLCYCLOHEXANE 失效
标题翻译：用于生产1,1-双（4-羟基苯基）-3,3,5-三甲基环己烷

公开(公告)号：EP0729447A4

公开(公告)日：1998-06-10

申请号：EP95932375

申请日：1995-09-05

申请人： ARISTECH CHEMICAL CORPORARION

发明人： RUBINO MARK R , SALEK JEFFREY S

IPC分类号： C07D317/72 , B01J27/10 , B01J31/02 , C07C37/11 , C07C37/14 , C07C39/17 , C07C319/14 , C07C323/61 , C07D319/08 , C07D327/04 , C07D327/06 , C07C37/00

CPC分类号： C07C37/115 , C07C37/14 , C07C37/20 , C07C319/14 , Y02P20/582 , C07C323/61 , C07C39/17

摘要： This invention provides a unique method of producing 1,1-bis-(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane ('BPTMC'). The disclosed method manufactures BPTMC from ketals and hemithioketals of 3,3,5-trimethylcyclohexanone ('TMC'). The reaction takes place in the presence of an acid catalyst, and optionally added co-catalysts. Additionally, applicants have disclosed a particularly useful method of manufacturing BPTMC from TMC and alcohol and/or thiol starting materials. These starting materials react to form the TMC ketal or thioketal materials. This method is particularly useful in that it allows recovery and recycling of the alcohol and/or thiol.