Photosensitive compound and preparation method and application thereof

The invention relates to the technical field of organic matter synthesis, and provides a photosensitive compound and a preparation method and application thereof. The preparation method of the photosensitive compound comprises the following steps: S1, carrying out nucleophilic substitution reaction on hydroxy-2-nitrobenzaldehyde and t-butyloxycarboryl amino alkyl halide in the presence of Lewis base and a phase transfer catalyst to prepare a compound A; s2, heating methyl acetoacetate, an ammonia compound and the compound A in a dark place to react to obtain a compound B; and S3, removing a t-butyloxycarboryl protecting group from the compound B to prepare the photosensitive compound. The synthetic method of the photosensitive compound has few steps, is safe and controllable, is easy for industrial production, and can be used for stable and continuous large-scale preparation. The invention also provides an application of the photosensitive compound in semiconductor packaging, by utilizing the selective coordi