Carbofuran hapten and synthesis process thereof

The invention relates to a carbofuran hapten and a synthesis process thereof. The synthesis process comprises the following steps: mixing carbofuran and dianhydride in a solvent, adding a catalyst for reaction, and obtaining a mixed reaction solution after the reaction is completed; drying the mixed reaction liquid, and extracting with ultrapure water to obtain a first water phase; and extracting the first water phase with dichloromethane to obtain a second water phase, and drying to obtain the carbofuran hapten. According to the synthesis process, carbofuran and dianhydride are used as raw materials, and compared with the prior art, the synthesis process has the advantages that the variety and dosage of reaction reagents are small, the synthesis process is simple (only one-step reaction is needed), the requirement for reaction conditions is low (reaction can be carried out in a common EP tube and can be carried out within the temperature range of 4-80 DEG C, reflux is not needed and the like), and product se