申请人:Bayer Aktiengesellschaft
公开号:US06602827B1
公开(公告)日:2003-08-05
The invention relates to novel 5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl-oxyacetanilides of the general formula (I)
in which
n represents the number 0, 1, 2 or 3,
R represents straight-chain or branched alkyl having 1 to 4 carbon atoms, and
X represents nitro, cyano, halogen or represents in each case optionally cyano-, halogen- or C1-C4-alkoxy-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl or alkylsulphonyl having in each case 1 to 4 carbon atoms,
except for the compounds N-methyl-5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl-oxyacetanilide, N-ethyl-5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl-oxyacetanilide, 4-chloro-N-methyl-(5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl)-oxyacetanilide and 3-trifluoromethyl-N-methyl-(5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl)-oxyacetanilide, N-i-propyl-5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl-oxyacetanilide, and 4-fluoro-N-methyl-(5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl)-oxyacetanilide and 4-fluoro-N-ethyl-(5-chlorodifluoromethyl-1,3,4-thiadiazol-2-yl)-oxyacetanilide,
and to a process for their preparation and to their use as herbicides.
本发明涉及一种新型的5-氯二氟甲基-1,3,4-噻二唑-2-氧基乙酰苯胺类化合物,其通式为(I),其中n表示0、1、2或3,R表示直链或支链烷基,其碳原子数为1至4,X表示硝基、氰基、卤素或在每种情况下均为可选择的氰基、卤素或C1-C4烷氧基取代的烷基、烷氧基、烷硫基、烷基磺酰基,其碳原子数均为1至4,但不包括N-甲基-5-氯二氟甲基-1,3,4-噻二唑-2-氧基乙酰苯胺、N-乙基-5-氯二氟甲基-1,3,4-噻二唑-2-氧基乙酰苯胺、4-氯-N-甲基-(5-氯二氟甲基-1,3,4-噻二唑-2-基)-氧基乙酰苯胺、3-三氟甲基-N-甲基-(5-氯二氟甲基-1,3,4-噻二唑-2-基)-氧基乙酰苯胺、N-异丙基-5-氯二氟甲基-1,3,4-噻二唑-2-氧基乙酰苯胺、4-氟-N-甲基-(5-氯二氟甲基-1,3,4-噻二唑-2-基)-氧基乙酰苯胺和4-氟-N-乙基-(5-氯二氟甲基-1,3,4-噻二唑-2-基)-氧基乙酰苯胺,以及它们的制备方法和作为除草剂的用途。