Omega-halo-2-alkynal
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsMiyoshi Yamashita, Takehiko Fukumoto, Takeshi Kinsho
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Abstract
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).
Claims1
An ω-halo-2-alkynal represented by formula (1):
- wherein X represents a halogen atom and n is an integer from 10 to 15.
Dependencies are inferred from the claim text.