Soybean seedlings are subject to attack by several types of fungi. Sesamol (3,4-(methylenedioxy)phenol) is a fairly effective agent for seed treatment to prevent such attacks. In this work, a variety of coumarin derivatives were produced for screening as potential anti-fungal agents because of their similarity in shape to sesamol.

Most of the compounds that were produced were derived from 4-hydroxy- and 7-hydroxy-coumarin. The synthesis and activity of each compound will be presented.