A process to prepare (9E,11Z)-9,11-hexadecadienyl acetate with a good yield and high purity of the general formula (1): CH
3
—(CH
2
)
3
—CH═CH—CH═CH—(CH
2
)
a
—X.=The process includes a step of conducting a Wittig reaction between a haloalkenal of the general formula (2): OHC—CH═CH—(CH
2
)
a
—X, and a triarylphosphonium pentylide of the general formula (3): CH
3
—(CH
2
)
3
—CH
−
—P
+
Ar
3
, to obtain the 1-haloalkadiene, and the use of a (7E,9Z)-1-halo-7,9-tetradecadiene obtained by the process for a process of preparing (9E, 11Z)-9,11-hexadecadienyl acetate.
一种制备(9E,11Z)-9,1
1-十六烯基
乙酸酯的方法,具有良好产率和高纯度,通式如下(1):
CH3—(
CH2)3—CH═CH—CH═CH—( )a—X。该方法包括进行维特格反应的步骤,反应物为通式(2):OHC—CH═CH—( )a—X的卤代烯醛,与通式(3): —( )3—CH−—P+Ar3的三芳基膦五元阴离子,以获得1-卤代烯烃,并利用该方法获得的(7E,9Z)-1-卤代-7,9-十四烯烃,用于制备(9E,11Z)-9,1
1-十六烯基
乙酸酯的方法。