Novel synthesis of 1,3-dienes from 1-alkenes via /ldene/rd reaction with pummerer rearrangement product: a short synthesis of the sex pheromone of the red bollworm moth
作者:Hiroyuki Ishibashi、Hajime Komatsu、Kazumi Maruyama、Masazumi Ikeda
DOI:10.1016/s0040-4039(00)98928-7
日期:——
A Pummerer rearrangement product, 4-chlorophenylthiomethyl trifluoroacetate (6), obtained from 4-chlorophenyl methyl sulfoxide (5) and trifluoroacetic anhydride, reacted with 1-alkenes in trifluoroacetic acid to give the ene products 8, which were readily converted into the terminal 1,3-dienes 10 by oxidation and subsequent pyrolysis. Using this method, 9,11-dodecadien-1-yl acetate (12), a sex pheromone
由4-
氯苯基
甲基亚砜(5)和
三氟乙酸酐获得的Pummerer重排产物4-
氯苯基
硫代
甲基三氟乙酸酯(6)与
三氟乙酸中的1-
烯烃反应生成
烯产物8,其易于转化为末端1 ,3-二
烯10通过
氧化和随后的热解。用这种方法,合成了9,11-
十二烷基
乙酸-1-基
乙酸酯(12),它是红铃虫蛾的性信息素。