C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/252, 260/259
C07D 239/28 (2006.01) A01N 47/36 (2006.01) C07D 251/12 (2006.01)
Patent
CA 1203535
HERBICIDAL o-SULFAMYLMETHYLBENZENESULFONAMIDES Abstract of the Disclosure Compounds, of the formula Image wherein L is SO2NR3R4; R is H, F, Cl, Br, NO2, CF3, C1-C3 alkyl or C1-C3 alkoxy; R1 is H or C1-C4 alkyl; R2 is H or CH3; R3 is C1-C4 alkyl or OCH3; R4 is C1-C4 alkyl; R8 is H, CH3 or OCH3; A is <IMAGE<, Image or Image W is O or S; X is H, Cl, Br, CH3, CH2CH3, C1-C3 alkoxy, CF3, SCH3 or CH2OCH3; Y is CH3 or OCH3; Z is N, CH, CCl, CBr, CCN, CCH3, CCH2CH3, CCH2CH2Cl or CCH2CH=CH2; y1 is H, CH3, OCH3 or OCH2CH3; and Q is O or CH2; and their agriculturally suitable salts; provided that: (1) when R3 is OCH3, then R4 is CH3; (2) the total number of carbon atoms of R3 and R4 is five or less; and (3) when W is S, then R8 is H, are useful as agricultural chemicals and in particular as herbicides.
381468
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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