申请人:IHARA CHEMICAL INDUSTRY CO., LTD.
公开号:EP1810957A1
公开(公告)日:2007-07-25
[Task]
Provide a process for producing a 2-benzylphenol compound easily, efficiently and selectively.
[Means for Achievement]
A process for producing a 2-benzylphenol compound represented by the following general formula (2)
(in the formula, R1, R2, R3 and R4 may be the same or different and are each independently hydrogen atom, alkyl group or the like; and R5, R6, R7, R8 and R9 may be the same or different and are each independently hydrogen atom, alkyl group or the like), characterized by reacting, in the presence of a dehydrogenating agent, a benzylidenecyclohexanone compound represented by the following general formula (1)
(in the formula, R1, R2, R3, R4, R5, R6, R7, R8 and R9 have the same definitions as given above).
[Effect]
A 2-benzylphenol compound substantially free from isomers can be produced from a benzylidenecyclohexanone compound (an easily obtainable raw material) selectively, efficiently and in a simple operation, under mild conditions without using any special reactor.
任务
提供一种简便、高效、选择性地生产 2-苄基苯酚化合物的工艺。
[实现途径]
一种由以下通式(2)表示的 2-苄基苯酚化合物的生产工艺
(式中,R1、R2、R3 和 R4 可以相同或不同,且各自独立地为氢原子、烷基或类似基团;R5、R6、R7、R8 和 R9 可以相同或不同,且各自独立地为氢原子、烷基或类似基团),其特征在于,在脱氢剂存在下,由下式通式(1)表示的亚苄基环己酮化合物发生反应
(式中,R1、R2、R3、R4、R5、R6、R7、R8 和 R9 的定义与上式相同)。
效果
在温和的条件下,无需使用任何特殊的反应器,就可以通过简单的操作,从亚苄基环己酮化合物(一种容易获得的原料)中选择性地、高效地生产出基本上不含异构体的 2-苄基苯酚化合物。