申请人:Takasago International Corporation
公开号:EP1162190A2
公开(公告)日:2001-12-12
An economical process for producing (2- and/or 1-)cyclohexenyl methyl ketones which are intermediates for the synthesis of α- or β-damascone. In the presence of a catalyst, a 3-cyclohexenyl methyl ketone represented by the following formula (1a):
wherein, R1, R2 and R3 each independently represents a hydrogen atom or a methyl group and at least two of R1, R2 and R3 are methyl groups, is isomerized.
一种生产(2-和/或 1-)环己烯甲基酮的经济工艺,这种甲基酮是α-或β-大马士酮合成的中间体。在催化剂存在下,由下式(1a)代表的 3-环己烯甲基酮:
其中,R1、R2 和 R3 各自独立地代表一个氢原子或一个甲基,且 R1、R2 和 R3 中至少有两个是甲基。