C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/242.5
C07D 403/12 (2006.01) A01N 47/36 (2006.01) C07D 285/125 (2006.01) C07D 413/12 (2006.01) C07D 521/00 (2006.01)
Patent
CA 1232271
Title HERBICIDAL SULFONAMIDES Abstract of the Disclosure This invention relates to herbicidal sulfona- mides which are useful as agricultural chemicals. More specifically the herbicidal sulfonamides are of the formula: Image I wherein J is Image or Image J-1 J-2 R is H or CH3; R1 is H, F, Cl, Br. CH3, CF3, OCH3, SCH3, OCHF2 or SCHF2; n is 1 or 2; Q is a fully saturated, 5- or 6-membered ring containing 1 to 2 heteroatoms selected from 0-2 S or 0-2 O or a fully unsaturated, 5- or 6-membered ring containing 1 to 3 heteroatoms selected from 0-1 S, 0-1 O or 0-3 N and Q may optionally be substituted by one or more groups selected from C1-C4 alkyl, halogen, C1-C3 alkoxy, mercapto, C1-C3 alkylthio, C1-C2 haloalkoxy or C1-C2 haloalkylthio, C3-C4 alkenylthio or SCH2CN; Image A-1 A-2 A-3 Image A-4 X is CH3, OCH3, OCH2CH3, Cl, F, Br, I, OCF2H, CH2F, OCH2CH2, OCH2CHF2, OCH2CF3 or CF3F; Y is H, CH3, OCH3, OC2H5, CH2OCH3, NHCH3, N(OCH3), N(CH3)2, CH2CH3, CF3, SCH, OCH2C=CH2, OCH2C?CH, CH2OCH2CH3, OCH2CH2OCH3, CH2SCH3, Image Image OCF2H, SCF2H or cyclopropyl: m is 2 or 3; L1 and L2 are independently O or S; R2 is H or CH3; R3 and R4 are independently C1-C2 alkyl; Z is CH or N: Y1 is O or CH2: X1 is CH3, OCH3, OC2H5 or OCF2H; and Y2 is H or CH3; provided that a) when X is Cl, F, Br or I, then Z is CH and Y is OCH3, OC2H5, N(OCH3)CH3. NHCH3. N(CH3)2 or OCF2H; b) when Q is a saturated ring containing 2 heteroatoms of oxygen and/or sulfur, or an unsaturated ring containing oxygen and sulfur said heteroatoms are not bonded directly to one another; c) when Q is Image and J is J-2, then X is CH3 or OCH3, Y is OCH3 and Z is CH or N; d) when Q is Image and J is J-1, then A is A-4; and e) when X or Y is OCF2H, then Z is CH; and their agriculturally suitable salts.
483128
E. I. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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