Patent ID: 7638647
Filing Date: 2009-12-29
Classification: C07C

Abstract:
1. A method for preparing a (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 from the (E3, Z5)-3,5-alkadienyl methoxymethyl ether.