Pyrido-fused 4-oxo-4h-benzopyrans, their preparation and...

Details Pyrido-fused 4-oxo-4h-benzopyrans, their preparation and... Pyrido-fused 4-oxo-4h-benzopyrans, their preparation and...

C - Chemistry, Metallurgy

07

D

C07D 491/052 (2006.01) A01N 25/32 (2006.01) C07D 491/04 (2006.01)

Patent

CA 2097922

2097922 9210500 PCTABS00013 Disclosed are pyrido-anellated 4-oxo-4H-benzopyrans (I) (in which m = 0, 1 or 2; and R1, R6 and R7 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 or cyclohexenone derivatives as herbicidally active substances and pyrido-anellated 4-oxo-4H-benzopyrans (I') as antidotes.

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