| abstract |
The invention discloses a preparation method of benzofuran compounds. The preparation method is as follows: the compound having the structure of formula (I) is reacted under catalyst conditions to obtain the benzofuran compound of formula (II). The method of the invention can simultaneously construct a benzene ring and a furan ring under mild reaction conditions to prepare the benzofuran compounds, the operation is simple, the steps are simple, the atom utilization rate is as high as 100%, and the compound of the formula (I) can be obtained from cheap and easy The obtained kojic acid or maltol is simply derived, and the cost is low, and a new, efficient and low-cost approach is provided for the preparation of natural products and drug precursors. |