Cyclohexane-1,3-diketone compound as well as synthesis method and application thereof

The invention provides a cyclohexane-1,3-diketone compound of which the structural formula is shown in the specification, wherein the group R1 in the structural formula I is -CH3, -CH2CH3, -(CH2)2CH3,-CH(CH3)2, -(CH2)3CH3, -CH(CH3)C2H5, -CH2CH(CH3)2 or -C(CH3)3; the group R2 is cis-trans-CHCH=CHCl, -CHCCl=CH2 or a substituent X in the formula is selected from -Cl, -F, -NO2 or -CF3, and n is the number of substituents X and is 1, 2 or 3. The invention also provides a synthesis method of the cyclohexane-1,3-diketone compound; the method uses the compound I-7 as a raw material for one-step synthesis, the synthesis method is simple, the reaction temperature is mild, the yield is high, the cost is low, and industrial production can be realized. The invention also provides an application of thecyclohexane-1,3-diketone compound in preparation of herbicides. 本发明提供了一种环己烷-1,3-二酮类化合物，其结构式为：其中，结构式I中的基团R为-CH、-CHCH、-(CH)CH、-CH(CH)、-(CH)CH、-CH(CH)CH、-CHCH(CH)或-C(CH)；基团R为顺反-CHCH＝CHCl、-CHCCl＝CH或且中的取代基X选自-Cl、-F、-NO或-CF，n为取代基X的