| abstract |
N-Heteroaryl-N'-(pyrid-2-yl-sulfonyl)ureas, processes for their preparation, and their use as herbicides and plant growth regulatorsCompounds of the formula (I)in whichR1-R4, A, n, m and w are as defined in claim 1, are suitable as herbicides for controlling harmful plants and can be prepared, inter alia, from the sulfonamides of the formula (II)by reacting them with carbamates R*O-CO-NR4-A. |