Abstract
In order to examine efficacies as anthelmintics against ascaris, 3-hydroxy-7-methoxy-and 3-hydroxy-7-methoxy-6-nitro-2-(2-furyl)-chromones were synthesized from the corresponding ω-furfurylideneacetophenones by heating in alcoholic potassium hydroxide solution with hydrogen peroxide. These 3-hydroxy-furylchromones and their O-methyl derivatives had no anthelmintic action in vitro in concentration of 1:1000.
