133120-18-0Relevant articles and documents
Pyridyl sulfonylurea herbicides
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, (2008/06/13)
N-Pyridinesulfonyl-N'-pyrimidinyl- and -triazinylureas of the formula I STR1 in which R1 is hydrogen, halogen, C1 -C4 alkyl, C1 -C4 alkoxy, C1 -C4 alkylthio, C1 C4 haloalkoxy or CF3 ; R2 is hydrogen or C1 -C4 alkyl; A is C1 -C6 alkyl or C3 -C6 cycloalkyl, each of which is monosubstituted to trisubstituted by halogen, or is C1 -C4 alkyl or C3 -C6 cycloalkyl, each of which is substituted by C1 -C4 alkoxy, C1 -C4 alkylthio, C1 -C4 alkylsulfonyl, C1 -C4 alkylsulfinyl, C2 -C4 alkenyl, C5 -C6 cycloalkenyl, amino, C1 -C4 alkylamino, C1 -C4 dialkylamino or C2 -C4 alkynyl, it being possible for the C2 -C4 alkenyl radical and the C5 -C6 cycloalkenyl radical to be additionally monosubstituted to trisubstituted by halogen; or A is a 4- to 6-membered saturated heterocycle which contains a hetero atom selected from the group comprising O, N and SO2 ; or A is C1 -C4 alkyl which is substituted by a 4- to 6-membered saturated heterocycle which contains a hetero atom selected from the group comprising O, N and SO2 ; X is C1 -C3 alkyl, C1 -C3 alkyl which is monosubstituted to trisubstituted by halogen, or is C1 -C3 alkoxy or C1 -C3 alkoxy which is monosubstituted to trisubstituted by halogen; Y is halogen, C1 -C3 alkyl, C1 -C3 alkyl which is monosubstituted to trisubstituted by halogen, or is C1 -C3 alkoxy, C1 -C3 alkoxy which is monosubstituted to trisubstituted by halogen, or is cyclopropyl, methylamino or dimethylamino; and E is nitrogen or the methine group, and the salts of these compounds with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases have good selective herbicidal properties pre-emergence and post-emergence, and good growth-regulating properties.
