| 摘要 |
<p>The present invention relates to novel 1,3,4thiadiazol-2-ylureas characterized by an hetero-ring sulfamoyl group at the 5-position of the thiadiazole group, and by small alkyl or alkoxy groups on the urea nitrogens. The hetero-ring groups are 5- and 6-membered rings containing an oxygen, sulfur, or nitrogen atom, and may optionally be linked to the sulfamoyl nitrogen by a methylene group. The novel compounds are effective pre- and postemergence herbicides. The present invention also relates to novel herbicidal compositions containing the novel compounds as active ingredient and novel methods of using the novel compounds for the control of herbaceous weeds.</p> |
