C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/277, 260/295
C07D 213/75 (2006.01) A01N 47/36 (2006.01) C07D 213/89 (2006.01)
Patent
CA 1289559
Abstract Pyridinylurea compounds of the formula Image and acid addition salts thereof; wherein n is 0 or 1; R is cycloalkyl, alkenyl, or an alkyl group optionally substituted with halogen, hydroxy, cyclo- alkyl, alkoxy, dialkylamino or phenyl: R1 is hydro- gen or alkyl; and R and R1 together with the nitro- gen atom of the NRR1 group optionally define a heterocycle of 4 to 6 ring carbon atoms; provided that when n is 0, A is 0, 1 or 2 and X is selected from a substituent X1 at the 2-position and a substituent Y at the 6-position, wherein X1 is hydrogen, halogen, haloalkyl, alkoxy, alkylthio or alkylsulfonyl, Y is hydrogen, halogen, haloalkyl, alkoxy, alkylthio or alkylsulfonyl; at least one of X1 and Y is other than hydrogen; the NHCONRR1 group is bonded to the pyridinyl ring in the 3- or 4-position; and when both R and R1 are alkyl, R is 1,1-dimethylethyl or cycloalkyl and R1 is methyl; provided further that when n is 1, A is 1 to 4, each X independently is halogen, alkyl, haloalkyl, hydroxy, alkoxy, 2-pyridinyl, alkylthio or alkylsul- fonyl; and the NHCONRR1 group is bonded to the pyridinyl ring in the 3- or 4-position. The compounds are useful in agriculture for plant growth regulation such as the retardation of sene- scence in soybean plants. 1291W30128Wmd
520118
Fmc Corporation
Henrie Robert N. II
Osler Hoskin & Harcourt Llp
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