| 摘要 |
<p>Herbicidal pyridine compounds of formula (II): <IMAGE> (II) wherein Z is CF3+L, CF2H, CF2Cl or hydrogen; Y is hydrogen, Cl, or CF3, provided that at least one of Y and Z is a halogenomethyl group; and R is a cyano group, or a carboxy group or a range of specified functional derivatives thereof; and wherein more than 50% by weight of the compound is in the D optical isomer form. The compounds are useful as selective herbicides for grass weeds in broad-leaved crops.</p> |
