申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US10138191B2
公开(公告)日:2018-11-27
Provided are a 1-halo-6,9-pentadecadiene useful as an intermediate having a skipped diene skeleton and a method for producing (7Z,10Z)-7,10-hexadecadienal. More specifically, provided are a method for producing (7Z,10Z)-7,10-hexadecadienal including steps of subjecting a Grignard reagent formed from a (6Z,9Z)-1-halo-6,9-pentadecadiene to a nucleophilic substitution reaction with an orthoformate ester to obtain a (7Z,10Z)-1,1-dialkoxy-7,10-hexadecadiene; and hydrolyzing the (7Z,10Z)-1,1-dialkoxy-7,10-hexadecadiene in the absence of an oxidation reaction to obtain the (7Z,10Z)-7,10-hexadecadienal; and the like.
本发明提供了一种可用作中间体的 1-卤代-6,9-十五碳二烯,该中间体具有跳过的二烯骨架,还提供了一种生产 (7Z,10Z)-7,10-十六碳二烯醛的方法。更具体地说,提供了一种生产(7Z,10Z)-7,10-十六碳二烯醛的方法,包括以下步骤:将由(6Z,9Z)-1-卤代-6,9-十五碳二烯形成的格氏试剂与原甲酸酯进行亲核取代反应,得到(7Z,10Z)-1,1-二烷氧基-7,10-十六碳二烯;在没有氧化反应的情况下水解(7Z,10Z)-1,1-二烷氧基-7,10-十六碳二烯,得到(7Z,10Z)-7,10-十六碳二烯醛;等等。