文摘
Stinkbug is a major rice plant pest in Asia. The extract of the culture filtrate of a fungus isolated from a green foxtail, Setaria viridis (L.) Beauv., was found to have a repellent effect on the white-spotted stinkbug, Eysarcoris ventralis (Westwood). The active principle was purified and isolated, and identified as 3-(4-methylfuran-3-yl)propan-1-ol (1) on the basis of spectroscopic data. Four acyl derivatives were prepared from 1 and assessed for repellent effect on the stinkbug; the acetyl derivative 2 was most effective.