Structures of 1,3-benzodioxole–stilbene derivatives.
| |||||||
|---|---|---|---|---|---|---|---|
| Compound | R1 | R2 | R3 | Fungicidal activity (%) | |||
| G. theae-sinensis | A. tenuis Nees | F. graminearum | R. solani | ||||
| 27a | H | H |
|
<10 | <40 | 0 | <10 |
| 27b | H | H |
|
<10 | <20 | <20 | <20 |
| 27c | H | H |
|
<20 | <10 | 0 | 0 |
| 27d | OCH3 | H |
|
<20 | <20 | <20 | <20 |
| 27e | OCH3 | H |
|
<30 | <30 | <20 | <20 |
| 27f | OCH3 | H |
|
<30 | <30 | <10 | <10 |
| 27g | OCH3 | H |
|
<10 | <20 | <30 | <20 |
| Piperine | — | — | — | 74 | 55 | <30 | 62 |
| Azoxystrobin | — | — | — | 69 | 55 | 64 | 55 |