(2S, 8Z)-2-butanoyloxy-8-heptadecene and preparation method thereof

The invention discloses a compound, i.e. (2S, 8Z)-2-butanoyloxy-8-heptadecene as shown in a formula (1) as well as a preparation method and application thereof. The structural formula of the compound is shown in the formula (1). The preparation method of the compound comprises the steps of: reacting methylmagnesium iodide with (Z)-7-hexadecenal to obtain (Z)-8-heptadecene-2-alcohol and then esterifying the (Z)-8-heptadecene-2-alcohol by using butyric acid; and hydrolyzing obtained butyric acid raceme by using esterase B generated by Candida antarctica to obtain the compound shown in the formula (1). Proved by a test result of a trapping effect on chrysanthemum gall midges in the field, the compound, i.e. the (2S, 8Z)-2-butanoyloxy-8-heptadecene has strong attraction action on the male chrysanthemum gall midges; and moreover, the product has appropriate price and favorable social and ecological benefits and is suitable for popularization and application. The formula (1) is shown in the specification.