DIALKOXYALKENYL ALKOXYMETHYL ETHER COMPOUND AND A PROCESS FOR PREPARING A TERMINAL CONJUGATED ALKADIENAL COMPOUND FROM THE SAME
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20220106247A1
公开(公告)日:2022-04-07
The present invention provides a process for preparing a terminal conjugated alkadienal compound of the following general formula (5):
CH
2
═CHCH═CH(CH
2
)
a
CHO (5)
wherein “a” represents an integer of 1 to 15, from a dialkoxyalkenyl alkoxymethyl ether compound of the following general formula (1):
R
1
CH
2
OCH
2
OCH
2
CH
2
CH═CH(CH
2
)
a
CH(OR
2
)(OR
3
) (1)
wherein R
1
represents a hydrogen atom, an n-alkyl group having 1 to 9 carbon atoms, or a phenyl group, R
2
and R
3
represent, independently of each other, a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R
2
and R
3
may form together a divalent hydrocarbon group, R
2
-R
3
, having 2 to 10 carbon atoms, and “a” is as defined above.
本发明提供了一种从以下通式(1)的二烷氧基烯丙基烷氧甲基醚化合物制备以下通式(5)的末端共轭烯二醛化合物的方法:R1CH2OCH2OCH2CH2CH═CH(CH2)aCH(OR2)(OR3) (1),其中R1表示氢原子、具有1-9个碳原子的n-烷基或苯基,R2和R3独立地表示具有1-15个碳原子的单价碳氢基团,或者R2和R3可一起形成具有2-10个碳原子的双价碳氢基团R2-R3,而“a”如上所定义。