| 摘要 |
Sulfonamide derivatives of the formula <CHEM> wherein W is O or S; R is H or CH3; J is a phenyl, thienyl, pyrazolyl or pyridyl group, each substituted by a tetrazolyl moiety; A is mono- or bicyclic heterocyclic group, e.g. pyrimidinyl or triazinyl; and their agriculturally suitable salts, exhibit potent herbicidal activity. Some also show a plant growth regulant effect. The novel compounds may be made e.g. by reacting a sulfonyl isocyanate or sulfonyl isothiocyanate JNCW with an appropriate heterocyclic amine HNR.A. |
