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公开(公告)号:WO2003016251A1
公开(公告)日:2003-02-27
申请号:PCT/JP2002/008198
申请日:2002-08-09
IPC: C07C45/57
CPC classification number: C07C45/58 , C07C49/413
Abstract: A process for the preparation of cyclododecanone by subjecting an epoxycyclododecane−containing raw material to isomerization in the presence of an isomerization catalyst containing lithium bromide and/or lithium iodide, wherein a product which is obtained by bringing epoxycyclododecadiene into contact with hydrogen in the presence of a hydrogenation catalyst and has a content of hydroxyl−bearing cyclododecane compounds of 5 mole % or below is used as the epoxycyclododecane−containing raw material in order to conduct the isomerization efficiently (at a high reaction rate) with high selectivity and thereby prepare high−purity cyclododecanone industrially stably with the reaction rate kept at a high level.
Abstract translation: 一种通过在含有溴化锂和/或碘化锂的异构化催化剂存在下使含环氧十二烷的原料进行异构化制备环十二烷酮的方法,其中通过使环氧环十二烷与氢接触而获得的产物在 为了以高选择性有效(高反应速度)进行异构化,使用氢化催化剂,含有5摩尔%以下的含羟基环十二烷化合物的含量为5摩尔%以下的原料, 纯度环十二烷在工业上稳定,反应速率保持在高水平。
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公开(公告)号:JP6070695B2
公开(公告)日:2017-02-01
申请号:JP2014509081
申请日:2013-02-27
Applicant: 宇部興産株式会社
IPC: C07C203/00 , C07C69/36 , C07C69/96 , C07C68/00 , C07C201/04
CPC classification number: C07C201/04 , C07C67/36 , C07C68/00
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