C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
260/313, 260/386
C07F 9/6518 (2006.01) A01N 57/24 (2006.01)
Patent
CA 1179679
Abstract Phosphonic acid derivatives of the formula (I) Image (I) wherein R1 and R2 are each, hydrogen, a catio or an ester group; R3 is hydrogen or alkyl; and R4 may be H, F, NH2, optionally substituted alkoxy, alkenyloxy or alkynyloxy, or a range of specified acyloxy radicals, or R3 and R4 with the adjacent carbon atom may form a keto group or a functional derivative thereof. The compounds are useful as herbicides.
414673
Barlow Charles Brian
Imperial Chemical Industries Plc
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