Omega-halo-2-alkynal, method for producing same, and method for producing conjugated Z-alken-yn-yl acetate using same
申请人:SHIN-ETSU CHEMICAL CO., LTD
公开号:EP2789602A1
公开(公告)日:2014-10-15
Provided is a method for industrially producing a conjugated Z-alken-yn-yl acetate such as Z-13-hexadecen-11-yn-yl acetate which is a sex pheromone component of a pine processionary moth, and an intermediate for the conjugated Z-alken-yn-yl acetate under mild conditions at a high yield. More specifically, provided is a method for producing a conjugated Z-alken-yn-yl acetate (5) comprising the steps of: reacting an ω-halo-2-alkynal (1) with an alkylidene triphenylphosphorane (3) through a Wittig reaction to obtain a conjugated Z-alken-yn-yl halide (4), and acetoxylating the conjugated Z-alken-yn-yl halide (4) into a conjugated Z-alken-yn-yl acetate (5).
本发明提供了一种在温和条件下工业化生产共轭 Z-烯炔基乙酸酯如 Z-13-hexadecen-11-炔基乙酸酯的方法,Z-烯炔基乙酸酯是松树游蛾的一种性信息素成分,本发明还提供了一种高产率的共轭 Z-烯炔基乙酸酯的中间体。更具体地说,提供了一种生产共轭 Z-烯炔基乙酸酯(5)的方法,包括以下步骤:通过 Wittig 反应使ω-卤代-2-炔醛(1)与亚烷基三苯基膦(3)反应,得到共轭 Z-烯炔基卤化物(4),并将共轭 Z-烯炔基卤化物(4)乙酰氧基化成共轭 Z-烯炔基乙酸酯(5)。