METHODS FOR PRODUCING 2,6-DIMETHYL-1,5-HEPTADIEN-3-OL AND 2,6-DIMETHYL-1,5-HEPTADIEN-3-YL ACETATE
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20180029964A1
公开(公告)日:2018-02-01
Provided are industrial and economical methods for producing 2,6-dimethyl-1,5-heptadien-3-yl acetate (3), which is, for example, a sex pheromone component of Comstock mealybug, and 2,6-dimethyl-1,5-heptadien-3-ol (2), which is an intermediate of the acetate (3). More specifically, provided are a method for producing 2,6-dimethyl-1,5-heptadien-3-ol comprising a step of subjecting 2-methyl-3-buten-2-yl 2-methyl-2-propenyl ether (1) to a rearrangement reaction in the presence of a base to obtain 2,6-dimethyl-1,5-heptadien-3-ol (2), and a method for producing 2,6-dimethyl-1,5-heptadien-3-yl acetate comprising a step of acetylating the produced 2,6-dimethyl-1,5-heptadien-3-ol (2) to obtain 2,6-dimethyl-1,5-heptadien-3-yl acetate (3).
提供了生产2,6-二甲基-1,5-庚二烯-3-醋酸酯(3)和2,6-二甲基-1,5-庚二烯-3-醇(2)的工业和经济方法,其中醋酸酯(3)是Comstock粉介壳虫的性信息素组分,醇(2)是醋酸酯(3)的中间体。更具体地,提供了一种生产2,6-二甲基-1,5-庚二烯-3-醇的方法,包括在碱存在下使2-甲基-3-丁烯-2-基-2-甲基丙烯醚(1)发生重排反应从而得到2,6-二甲基-1,5-庚二烯-3-醇(2)的步骤,以及一种生产2,6-二甲基-1,5-庚二烯-3-醋酸酯的方法,包括乙酰化生产的2,6-二甲基-1,5-庚二烯-3-醇(2)以获得2,6-二甲基-1,5-庚二烯-3-醋酸酯(3)的步骤。