Preparation method of C-fluoroalkyl substituted amidine compound and application of C-fluoroalkyl substituted amidine compound in resisting fungal diseases

The invention relates to a preparation method of a compound as shown in a formula (I), which comprises the following step: reacting a compound as shown in a formula (II) with compounds as shown in a formula (III) and a formula (IV) under the catalysis of a catalyst and villiaumite conditions to obtain the compound as shown in the formula (I). The compound in the formula (I) prepared by the method has the effect of resisting fungal diseases and can be used as a bactericide, and a pesticide composition of the compound can be used for preventing and treating plant diseases. The compound can effectively prevent germs from infecting plants by inhibiting conidium germination, bud tube growth or appressorium formation, and is further used for preventing and treating plant diseases with huge harm, including rice blast, anthracnose, downy mildew, phytophthora root rot and powdery mildew, and a new choice for plant protection medication is provided. 本说明涉及一种式(I)所示化合物的制备方法，包括，将式(II)所示化合物与式(III)及式(IV)所示化合物在催化剂的催化、氟盐条件下反应得