| 摘要 |
Compounds of the formula …<CHEM>… wherein… Q is O or S; …<CHEM>… R1 is R6S[O]n;… R6 is C1-C4 alkyl, C3-C4 alkenyl, cyclopentyl or cyclopropylmethyl;… R2 is H, Cl, Br or CH3;… R3 and R4 are independently H or CH3;… n is 0, 1 or 2; and… R5 is …<CHEM>… wherein… X is CH3 or OCH3;… Y is H, Cl, CH3, C2H5, OCH3, OC2H5 or CH2OCH3;… Y1 is H, Cl, CH3 or OCH3;… Y2 is CH3 or OCH3:… Z is CH or N;… and their agriculturally suitable salts provided that:… both R3 and R4 may not simultaneously be CH3, and further provided that R1 and A are bonded to adjacent carbon atoms of the thiophene or furan ring;… exhibit herbicidal and plant growth regulant activity. They may be formulated for use in conventional manner. …<??>The novel compounds may be made by reacting a novel isocyanate of formula …<CHEM>… with an amine of formula R4R5NH; or by replacing the chlorine atoms in novel intermediates of formula …<CHEM>… by methoxy or methoxy and ethoxy. |
