Dialkoxyalkenyl alkoxymethyl ether compound and method for preparing terminal conjugated chain dienal compound therefrom

The present invention provides a method for preparing a terminal conjugated chain dienal compound of the following general formula (5) from a dialkoxyalkenyl alkoxymethyl ether compound of the following general formula (1): R1CH2OCH2OCH2CH2CH = CH (CH2) aCH (OR2) (OR3) (1): CH2 = CHCH = CH (CH2) aCHO (5) wherein a represents an integer of 1 to 15, in formula (1), R1 represents a hydrogen atom, a normal alkyl group having 1 to 9 carbon atoms, or a phenyl group, and R2 represents an integer of 1 to 15. R2 and R3 independently of each other represent a monovalent hydrocarbon group having 1 to 15 carbon atoms, or R2 and R3 may together form a divalent hydrocarbon group having 2 to 10 carbon atoms R2-R3, and a is as defined above. 本发明提供一种由如下通式(1)的二烷氧链烯基烷氧甲基醚化合物：R1CH2OCH2OCH2CH2CH＝CH(CH2)aCH(OR2)(OR3)(1)来制备如下通式(5)的末端共轭链二烯醛化合物的方法：CH2＝CHCH＝CH(CH2)aCHO(5)其中a表示1至15的整数，式(1)中，R1表示氢原子、具有1至9个碳原子的正烷基基团、或苯基基团，R2和R3彼此独立地表示具有1至15个碳原子的一价烃基，或R2和R3可一起形成具有2至10个碳原子的二价烃基R2-R3，且a如上所定义。