Herbicidal substituted-thiophene, furan and pyrrole sulfonamides
申请人:E.I. DU PONT DE NEMOURS AND COMPANY
公开号:EP0146263A1
公开(公告)日:1985-06-26
Novel sulfonamide derivatives of the formula
wherein J is
where E is a bridge of 3 or 4 atoms including 0-2 oxygen, sulfur or nitrogen heteroatoms and at least one carbon atom;
G is O, S, NH or NCH3;
W is 0 or S;
R is H or CH3; and
A is a substituted nono or bicyclic heterocyclic residue, especially a pyrimidine or triazine residue;
exhibit potent herbicidal activity; many also exhibit a plant growth regulant effect.
The novel compounds may be made by a variety of synthetic routes, e. g. by reacting the appropriate sulfonyl isocyanate or isothiocyanate of formula JS02NCW with an appropriate heterocyclic amine of formula