N-heteroaryl-n'-(pyrid-2-yl-sulfonyl)ureas, processes for...

Details N-heteroaryl-n'-(pyrid-2-yl-sulfonyl)ureas, processes for... N-heteroaryl-n'-(pyrid-2-yl-sulfonyl)ureas, processes for...

C - Chemistry, Metallurgy

07

D

C07D 401/12 (2006.01) A01N 47/36 (2006.01) C07D 213/75 (2006.01) C07D 413/14 (2006.01) C07D 417/14 (2006.01) C07D 491/044 (2006.01) C07D 521/00 (2006.01)

Patent

CA 2089464

N-Heteroaryl-N'-(pyrid-2-yl-sulfonyl)ureas, processes for their preparation, and their use as herbicides and plant growth regulators Compounds of the formula (I) (see formula I) in which R1 - 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) (see formula II) by reacting them with carbamates R*O-CO-NR4-A.

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