Insect sex pheromones: Palladium-catalyzed synthesis of aliphatic 1,3-enynes by reaction of 1-alkynes with alkenyl halides under phase transfer conditions
作者:Renzo Rossi、Adriano Carpita、Maria G. Quirici、Maria L. Gaudenzi
DOI:10.1016/0040-4020(82)80204-4
日期:1982.1
prepared in good yields by coupling reaction of 1-alkynes or ω-functionalized 1-alkynes halides in the presence of a catalytic amount of (PPh3)4Pd and Cul. The reactions, which were carried out under phase transfer conditions employing benzyltriethylammonium chloride as phase transfer agent, benzene as organic solvent and diluted aq NaOH as base, occurred with 100% stereospecificity when 1-halo-1-alkenes
在催化量的(PPh 3)4 Pd和Cul存在下,通过1-炔烃或ω-官能化1-炔烃卤化物的偶合反应,已经以高收率制备了通式1的官能化1,3-酶。当使用定义构型的1-卤-1-烯烃时,以苄基三乙基氯化铵为相转移剂,苯为有机溶剂,稀NaOH水溶液为碱的相转移条件下发生的反应具有100%的立体特异性。这种偶联反应已被用于以高总产率制备一些纯昆虫性信息素组分或其前体。