申请人:Shin-Etsu Chemical Co., Ltd.
公开号:EP3453699A1
公开(公告)日:2019-03-13
One object of the invention is to provide a high-yield process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate, with reduced number of steps, without using a protecting group.
A process for preparing (4Z,7Z)-4,7-decadien-1-yl acetate is provided, the process comprising at least the following steps: reducing a 10-halo-3,6-decadiyne of the general formula (1) to form a (3Z,6Z)-10-halo-3,6-decadiene of the general formula (2); and converting the (3Z,6Z)-10-halo-3,6-decadiene into (4Z,7Z)-4,7-decadien-1-yl acetate of the formula (4) having an acetoxy group in place of the halogen atom of the (3Z,6Z)-10-halo-3,6-decadiene.
本发明的一个目的是提供一种高产率的制备(4Z,7Z)-4,7-癸二烯-1-基乙酸酯的工艺,该工艺减少了步骤,无需使用保护基团。
本发明提供了一种制备 (4Z,7Z)-4,7-癸二烯-1-基乙酸酯的工艺,该工艺至少包括以下步骤:还原通式(1)的 10-卤代-3,6-癸二烯,生成通式(2)的 (3Z,6Z)-10-卤代-3,6-癸二烯;并将(3Z,6Z)-10-卤-3,6-癸二烯转化为通式(4)的(4Z,7Z)-4,7-癸二烯-1-基乙酸酯,其乙酰氧基取代了(3Z,6Z)-10-卤-3,6-癸二烯的卤原子。