| 摘要 |
NEW MATERIAL:The compound of formula I (one of X and Y is 1,2,3,3,3-pentafluoro-1-propenyl and the other is group of formula II; R<1> and R<2> are methyl or methoxy) and its salt. EXAMPLE:N-[( 4,6-dimethoxypyrimidin-2-yl )-aminocarbonyl]3-(1,2,3,3,3-pentafluoropropen-1-yl)-2-thiophenesulfon amide. USE:Herbicide capable of control harmful weeds grown on especially paddy field selectively at a low rate of application. The weed of relatively grown stage can also be controlled. PREPARATION:The compound of formula I can be prepared by reacting the compound of formula III (one of Z<1> and Z<2> is 1,2,3,3,3-pentafluoro-1-propenyl and the other is aminosulfonyl) with the compound of formula IV (R is alkyl, alkenyl or phenyl). |
