Pheromone synthesis. Part 257: Synthesis of methyl (2E,4Z,7Z)-2,4,7-decatrienoate and methyl (E)-2,4,5-tetradecatrienoate, the pheromone components of the male dried bean beetle, Acanthoscelides obtectus (Say)
作者:Kenji Mori
DOI:10.1016/j.tet.2015.06.051
日期:2015.8
oxidation/Wittig reaction of (2Z,5Z)-2,5-octadien-1-ol yielded methyl (2E,4Z,7Z)-2,4,7-decatrienoate, a newly discovered pheromone component of the male dried bean beetle, while that of (±)-2,3-dodecadien-1-ol gave (±)-methyl (E)-2,4,5-tetradecatrienoate, the racemate of the known and major pheromone component. Methyl (2E,4E,7Z)-2,4,7-decatrienoate was also synthesized, which is the methyl ester of an acid metabolite
(2 Z,5 Z)-2,5-辛二烯-1-醇的串联Dess-Martin氧化/维蒂希反应产生了新发现的(2 E,4 Z,7 Z)-2,4,7-癸三烯酸甲酯雄性干豆甲虫的信息素成分,而(±)-2,3-dodecadien-1-ol的信息素成分产生(±)-甲基(E)-2,4,5-十四碳三烯酸酯,是已知和主要的外消旋体信息素成分。还合成了(2 E,4 E,7 Z)-2,4,7-十碳三烯酸甲酯,它是绿藻酸代谢产物的甲酯。用Zn-Cu / EtOH还原2,5-辛二炔-1-醇可干净地得到(2 Z,5 Z)-2,5-辛二烯-1-醇。