| 摘要 |
<p>Sulfonylurea derivatives of the formula <CHEM> wherein J is a substituted phenyl, thienyl, naphthyl, pyridyl, pyridylmethyl or pyrazolyl group: W is O or S; R is H or CH3; A is a mono- or bicyclic heterocylic group, and their agriculturally suitable salts, exhibit herbicidal activity. Some also show a plant growth regulant effect. The novel compounds may be made by a variety of synthetic routes, e.g. by reaction of a sulfonamide of formula JSO2NH2 with a phenyl carbamate or thiocarbamate of formula PhO.CW.NRA.</p> |
