Derivatives of 2-nitro-4- or -5-pyridyloxyphenylphos- phonic...

Details Derivatives of 2-nitro-4- or -5-pyridyloxyphenylphos- phonic... Derivatives of 2-nitro-4- or -5-pyridyloxyphenylphos- phonic...

C - Chemistry, Metallurgy

07

F

260/291, 71/8.1,

C07F 9/58 (2006.01) A01N 57/24 (2006.01)

Patent

CA 1162548

Derivatives of 2-nitro-4- or -5-pyridyloxyphenylphosphonic acid, the preparation thereof, the use thereof as herbicides and/or plant growth regulators and/or microbicides, intermediates employed for obtaining said derivatives, the preparation thereof and use thereof as herbicides Abstract The invention relates to novel 2-nitro-4- or -5-pyridyloxy- phenylphosphonic acid derivatives of the formula Image wherein X is halogen or trifluoromethyl, Y is hydrogen or halogen, one of the two substituents A and E is a phosphonate group -?(OR)2, wherein R is C1-C4alkyl or hydrogen, and the other is a nitro group, including the metal salts there- of and the salts thereof with ammonium and organic nitrogen bases, and to the preparation and use thereof. These com- pounds may be used for controlling weeds, regulating plant growth, or as microbicides.

406918

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