| abstract |
The invention discloses a preparation method and bioactivity of anti-plant-virus compounds-quinazolinyl chalcone derivatives. The quinazolinyl chalcone derivatives are disclosed as the following general formula. Various substituted hypnones, p-hydroxybenzaldehyde, various substituted anthranilic acids, formamide, thionyl chloride, nitromethane, sodium hydroxide, potassium hydroxide and potassium carbonate used as raw materials are subjected to four steps to synthesize the quinazolinyl chalcone derivatives. The invention also discloses high inhibiting actions of the compounds q, u, w and the like on protecting inactivating and treating cucumber mosaic virus (CMV), tobacco mosaic virus (TMV), southern rice black-streaked dwarf virus (SRBSDV) and rice stripe virus (RSV). The compounds have higher anti-plant-virus activity and can be used for preparing anti-plant-virus pesticides. |