Method for preparing (E3,Z5)-3,5-alkadienyl acetate

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United States of America Patent

PATENT NO 7638647
APP PUB NO 20090143617A1
SERIAL NO

12323823

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance.

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Patent Owner(s)

  • SHIN-ETSU CHEMICAL CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fukumoto, Takehiko Joetsu, JP 43 126
Yamashita, Miyoshi Joetsu, JP 33 8

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