2-amino-4-oxo-4h-benzopyrans, their preparation and their...

Details 2-amino-4-oxo-4h-benzopyrans, their preparation and their... 2-amino-4-oxo-4h-benzopyrans, their preparation and their...

C - Chemistry, Metallurgy

07

D

C07D 311/22 (2006.01) A01N 25/32 (2006.01) C07D 405/04 (2006.01)

Patent

CA 2097923

2097923 9210489 PCTABS00013 Disclosed are 2-amino-4-oxo-4H-benzopyrans (I) (in which m = 0, 1 or 2; and R1 to R4 are as defined in the description), as well as salts of compound (I), and herbicides containing the 2-(4-heteroaryloxy)- and 2-(4-aryloxy) phenoxyacetic acid derivatives and/or cyclohexenone derivatives as herbicidally active substances, and 2-amino-4-oxo-4H-benzopyrans (I') as antidotes.

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