(E)-2-ISOPROPYL-5-METHYL-3,5-HEXADIENOATE COMPOUND, METHOD FOR PRODUCING THE SAME, AND METHODS FOR PRODUCING (E)-2-ISOPROPYL-5-METHYL-3,5-HEXADIENOL AND (E)-2-ISOPROPYL-5-METHYL-3,5-HEXADIENYL CARBOXYLATE BY USING THE SAME
申请人:Shin-Etsu Chemical Co., Ltd.
公开号:US20170050913A1
公开(公告)日:2017-02-23
Provided is a geometrically selective method for producing (±)-(E)-2-isopropyl-5-methyl-3,5-hexadienyl acetate, which is a sex pheromone of grape pineapple mealybug (GPMB). Specifically provided is a method for producing a an (E)-2-isopropyl-5-methyl-3,5-hexadienyl carboxylate compound (4), the method comprising the steps of: dehydrating a 3-hydroxy-2-isopropyl-5-methyl-4-hexenoate compound (1) to obtain an (E)-2-isopropyl-5-methyl-3,5-hexadienoate compound (2); reducing the alkoxycarbonyl group of the compound (2) to obtain (E)-2-isopropyl-5-methyl-3,5-hexadienol (3); and esterifying the compound (3) to obtain the compound (4).
提供了一种几何选择性方法,用于制备(±)-(E)-2-异丙基-5-甲基-3,5-己二烯基醋酸酯,这是葡萄凤梨介壳虫(GPMB)的性信息素。具体提供了一种制备(E)-2-异丙基-5-甲基-3,5-己二烯酸酯化合物(4)的方法,该方法包括以下步骤:脱水3-羟基-2-异丙基-5-甲基-4-己烯酸酯化合物(1)以获得(E)-2-异丙基-5-甲基-3,5-己二烯酸酯化合物(2);还原化合物(2)的烷氧羰基以获得(E)-2-异丙基-5-甲基-3,5-己二烯醇(3);酯化化合物(3)以获得化合物(4)。