GB2091248A - Herbicidal propionic acid esters - Google Patents
Herbicidal propionic acid esters Download PDFInfo
- Publication number
- GB2091248A GB2091248A GB8138135A GB8138135A GB2091248A GB 2091248 A GB2091248 A GB 2091248A GB 8138135 A GB8138135 A GB 8138135A GB 8138135 A GB8138135 A GB 8138135A GB 2091248 A GB2091248 A GB 2091248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alpha
- signifies
- phenoxy
- alkyl
- trifluoro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000002363 herbicidal effect Effects 0.000 title description 5
- 150000003151 propanoic acid esters Chemical class 0.000 title description 3
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 87
- -1 trimethylene, tetramethylene, 2butenylene Chemical group 0.000 claims description 78
- 150000001875 compounds Chemical class 0.000 claims description 50
- 239000000203 mixture Substances 0.000 claims description 44
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 claims description 36
- 241000196324 Embryophyta Species 0.000 claims description 34
- 239000001257 hydrogen Substances 0.000 claims description 27
- 229910052739 hydrogen Inorganic materials 0.000 claims description 27
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- 239000002253 acid Substances 0.000 claims description 21
- 239000000460 chlorine Substances 0.000 claims description 19
- XBDQKXXYIPTUBI-UHFFFAOYSA-N Propionic acid Substances CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 18
- 229910052801 chlorine Inorganic materials 0.000 claims description 18
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 17
- 229910052736 halogen Inorganic materials 0.000 claims description 17
- 150000002367 halogens Chemical group 0.000 claims description 17
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 16
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 16
- 229910052794 bromium Inorganic materials 0.000 claims description 16
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 16
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 15
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 11
- 238000009472 formulation Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 229910052740 iodine Inorganic materials 0.000 claims description 8
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 7
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical group FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 claims description 7
- 239000011630 iodine Substances 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 239000002671 adjuvant Substances 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 5
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 4
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 claims description 4
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 3
- SXERGJJQSKIUIC-UHFFFAOYSA-N 2-Phenoxypropionic acid Chemical compound OC(=O)C(C)OC1=CC=CC=C1 SXERGJJQSKIUIC-UHFFFAOYSA-N 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001721 carbon Chemical group 0.000 claims 12
- 125000004209 (C1-C8) alkyl group Chemical group 0.000 claims 1
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 82
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 35
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 27
- 239000013543 active substance Substances 0.000 description 22
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 3
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- 125000004765 (C1-C4) haloalkyl group Chemical group 0.000 description 2
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- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
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- 239000004338 Dichlorodifluoromethane Substances 0.000 description 1
- PEIKTSJIUKYDPC-UHFFFAOYSA-N Diethyl 3-Bromopropylphosphonate Chemical compound CCOP(=O)(OCC)CCCBr PEIKTSJIUKYDPC-UHFFFAOYSA-N 0.000 description 1
- ZAFNJMIOTHYJRJ-UHFFFAOYSA-N Diisopropyl ether Chemical compound CC(C)OC(C)C ZAFNJMIOTHYJRJ-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 241000209082 Lolium Species 0.000 description 1
- 244000100545 Lolium multiflorum Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 1
- MNSGOOCAMMSKGI-UHFFFAOYSA-N N-(hydroxymethyl)phthalimide Chemical compound C1=CC=C2C(=O)N(CO)C(=O)C2=C1 MNSGOOCAMMSKGI-UHFFFAOYSA-N 0.000 description 1
- IGFHQQFPSIBGKE-UHFFFAOYSA-N Nonylphenol Natural products CCCCCCCCCC1=CC=C(O)C=C1 IGFHQQFPSIBGKE-UHFFFAOYSA-N 0.000 description 1
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- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241001465363 Panicum capillare Species 0.000 description 1
- 235000011999 Panicum crusgalli Nutrition 0.000 description 1
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- NWQXYQUFNNDNES-UHFFFAOYSA-N S(=O)(=O)(O)O.C(CCCCCCCCCCCCCCC)[Na] Chemical compound S(=O)(=O)(O)O.C(CCCCCCCCCCCCCCC)[Na] NWQXYQUFNNDNES-UHFFFAOYSA-N 0.000 description 1
- 241001355178 Setaria faberi Species 0.000 description 1
- 240000005498 Setaria italica Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 244000098338 Triticum aestivum Species 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical class ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 230000000895 acaricidal effect Effects 0.000 description 1
- 239000000642 acaricide Substances 0.000 description 1
- 239000003377 acid catalyst Substances 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 150000004996 alkyl benzenes Chemical class 0.000 description 1
- XPNGNIFUDRPBFJ-UHFFFAOYSA-N alpha-methylbenzylalcohol Natural products CC1=CC=CC=C1CO XPNGNIFUDRPBFJ-UHFFFAOYSA-N 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229960000892 attapulgite Drugs 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 150000008366 benzophenones Chemical class 0.000 description 1
- 235000019445 benzyl alcohol Nutrition 0.000 description 1
- 229960004217 benzyl alcohol Drugs 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- RGBWYVDYDRLELK-UHFFFAOYSA-N butyl N-hydroxyethanimidate Chemical compound ON=C(C)OCCCC RGBWYVDYDRLELK-UHFFFAOYSA-N 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- JIJAYWGYIDJVJI-UHFFFAOYSA-N butyl naphthalene-1-sulfonate Chemical class C1=CC=C2C(S(=O)(=O)OCCCC)=CC=CC2=C1 JIJAYWGYIDJVJI-UHFFFAOYSA-N 0.000 description 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- PFKFTWBEEFSNDU-UHFFFAOYSA-N carbonyldiimidazole Chemical compound C1=CN=CN1C(=O)N1C=CN=C1 PFKFTWBEEFSNDU-UHFFFAOYSA-N 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 150000001767 cationic compounds Chemical class 0.000 description 1
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- 229920002678 cellulose Polymers 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 150000008422 chlorobenzenes Chemical class 0.000 description 1
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- 235000013985 cinnamic acid Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229960001760 dimethyl sulfoxide Drugs 0.000 description 1
- KWABLUYIOFEZOY-UHFFFAOYSA-N dioctyl butanedioate Chemical compound CCCCCCCCOC(=O)CCC(=O)OCCCCCCCC KWABLUYIOFEZOY-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 150000002118 epoxides Chemical class 0.000 description 1
- BJBDPHKMAMMTFW-GQCTYLIASA-N ethyl (2e)-2-hydroxyiminopropanoate Chemical compound CCOC(=O)C(\C)=N\O BJBDPHKMAMMTFW-GQCTYLIASA-N 0.000 description 1
- RCKJUUVOLJLKQX-UHFFFAOYSA-N ethyl 3-hydroxyiminobutanoate Chemical compound CCOC(=O)CC(C)=NO RCKJUUVOLJLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical class OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 125000001188 haloalkyl group Chemical group 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- JBFYUZGYRGXSFL-UHFFFAOYSA-N imidazolide Chemical compound C1=C[N-]C=N1 JBFYUZGYRGXSFL-UHFFFAOYSA-N 0.000 description 1
- 150000007529 inorganic bases Chemical class 0.000 description 1
- 239000002917 insecticide Substances 0.000 description 1
- 150000008040 ionic compounds Chemical class 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical class O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N methyl p-hydroxycinnamate Natural products OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- UGFAVLZNXICNCF-UHFFFAOYSA-N n-(1-methoxypropan-2-ylidene)hydroxylamine Chemical compound COCC(C)=NO UGFAVLZNXICNCF-UHFFFAOYSA-N 0.000 description 1
- HWJHZLJIIWOTGZ-UHFFFAOYSA-N n-(hydroxymethyl)acetamide Chemical compound CC(=O)NCO HWJHZLJIIWOTGZ-UHFFFAOYSA-N 0.000 description 1
- YGNXYFLJZILPEK-UHFFFAOYSA-N n-cyclopentylidenehydroxylamine Chemical compound ON=C1CCCC1 YGNXYFLJZILPEK-UHFFFAOYSA-N 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- CABDEMAGSHRORS-UHFFFAOYSA-N oxirane;hydrate Chemical compound O.C1CO1 CABDEMAGSHRORS-UHFFFAOYSA-N 0.000 description 1
- 229910052625 palygorskite Inorganic materials 0.000 description 1
- 235000002252 panizo Nutrition 0.000 description 1
- 239000006072 paste Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- WROZTZHKRRNHBS-UHFFFAOYSA-N phenyl propaneperoxoate Chemical compound CCC(=O)OOC1=CC=CC=C1 WROZTZHKRRNHBS-UHFFFAOYSA-N 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 239000005648 plant growth regulator Substances 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000012424 soybean oil Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- 125000005208 trialkylammonium group Chemical group 0.000 description 1
- 239000004563 wettable powder Substances 0.000 description 1
- 150000003738 xylenes Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/36—Oxygen or sulfur atoms
- C07D207/40—2,5-Pyrrolidine-diones
- C07D207/404—2,5-Pyrrolidine-diones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms, e.g. succinimide
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N39/00—Biocides, pest repellants or attractants, or plant growth regulators containing aryloxy- or arylthio-aliphatic or cycloaliphatic compounds, containing the group or, e.g. phenoxyethylamine, phenylthio-acetonitrile, phenoxyacetone
- A01N39/02—Aryloxy-carboxylic acids; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N41/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom
- A01N41/02—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a sulfur atom bound to a hetero atom containing a sulfur-to-oxygen double bond
- A01N41/04—Sulfonic acids; Derivatives thereof
- A01N41/06—Sulfonic acid amides
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N57/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds
- A01N57/18—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds
- A01N57/22—Biocides, pest repellants or attractants, or plant growth regulators containing organic phosphorus compounds having phosphorus-to-carbon bonds containing aromatic radicals
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/44—Iso-indoles; Hydrogenated iso-indoles
- C07D209/48—Iso-indoles; Hydrogenated iso-indoles with oxygen atoms in positions 1 and 3, e.g. phthalimide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4006—Esters of acyclic acids which can have further substituents on alkyl
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Environmental Sciences (AREA)
- Dentistry (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Biochemistry (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Description
SPECIFICATION
Propionic acid esters
The invention is concerned with propionic acid esters of the general formula
wherein R1 signifies chlorine, bromine, iodine or trifluoromethyl,
R2 signifies hydrogen, chlorine, bromine or iodine,
R3 signifies hydrogen or C1-4-alkyl,
R4 signifies hydrogen;C1-4-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro, whereby R3 and R4 together with the carbon atom to which they are attached can also form a C5 8-cycloalkane ring which, if desired, can be substituted with 1 to 3 C1 4-alkyl groups,
m, n, and p signify the number 0 or 1 and R5 signifies one of the following groups (a)-(f)::
-NHCO-R6 (a) -NH502-R7 (b)
whereby in the above formulae of the groups (a)-(f)
R6 signifies hydrogen; C1 6-alkyl; C1 4-haloalkyl; or phenyl, optionally substituted with halogen,
C1-4-alkyl and / or nitro,
R7 signifies C1 6-alkyl;; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro,
R8 and R9 stand for hydrogen or together signify a bond, trimethylene, tetramethylene, 2butenylene or a fused benzene ring,
R10 signifies C1-6-alkyl and R11 signifies trifluoromethyl, C1-6-alkoxy, C1 6-alkoxy, C1 6-alkoxy- C1 4-alkyl, C2 7-alkanoyl, C27-alkoxycarbonyl or C2-7-alkoxycarbonyl-C1-4-alkyl, or R10 and R" together with the carbon atom to which they are attached form a cyclopentane ring which, if desired, can be substituted with 1 to 3 C1 4-alkyl groups and/or 1 C1 4-alkoxy group, whereby, where R10, R11 and the carbon atom form an optionally substituted cyclopentane ring, R' is chlorine, bromine or trifluoromethyl,
R12 signifies hydrogen or C1-6-alkyl and R'3 signifies C1 6-alkyl; or phenyl, optionally substituted with halogen, C1 4-alkyl and/or nitro, or R12 and R'3 together with the carbon atom to which they are attached form a C5 7-cycloalkane ring, and
R14 and R'5 signify C1 6-alkyl or phenyl, and whereby, when R5 represents a group (a), (b) or (c), m signifies the number 1, n signifies the number 0 and p signifies the number 0 or 1; when R5 represents a group (d), m, n and p signify the number 0; when R5 represents a group (e), m signifies the number 0 and n and p signify the number 1; and when R5 represents a group (f), m and p signify the number 0 or 1 and n signifies the number 1.
The compounds of formula I possess herbicidal properties and are accordingly suitable as weed control agents and as active substances of weed control compositions. Accordingly, the invention also includes weed control compositions which contain at least one compound of formula I as the active substance, a process for the manufacture of these compounds as well as the use of such compounds or compositions for the control of weeds.
In formula I above the term "halogen" includes fluorine, chlorine, bromine and iodine. The term 'C14-alkyI" or "C16-alkyl" means not only straight-chain but also branched-chain alkyl groups such as methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert.butyl, n-pentyl, isoamyl, neo-pentyl and n-hexyl.This is also true for groups containing C1 4-alkyl groups or C1 6-alkyl groups such as C14- or C, 6-alkoxy, C2 7-alkoxycarbonyl, C1 4-haloalkyl, C27-alkoxycarbonyl-C14- alkyl, C16-alkoxy-C14-alkyl and C2 7-alkanoyl. When two or more substituents are present in a substituted phenyl group, the substituents can be the same or different. This is also true for the C5 8-cycloalkane ring substituted with alkyl and the cyclopentane ring substituted with alkyl and/or alkoxy. The term "haloalkyl" includes alkyl substituted with one or more halogen atoms.
Since at least one asymmetric carbon atom is present in the molecule, the compounds of formula I can occur in optically active form. As a consequence of the nitrogen-carbon double bond in the compounds of formula I in which R5 signifies a group (d) or a group (e) geometric isomerism also occurs in the case of those compounds in which R10 and R11 or R12 and R'3 have different significances. Such geometric isomers are called the syn- and anti-forms. Independently thereof, an atropic isomerism is also present in certain cases. Formula I is accordingly intended to include the racemates as well as all of these possible isomeric forms.
Independently of one another R1 preferably signifies iodine or trifluoromethyl and R2 preferably signifies hydrogen or chlorine.
When R3 signifies C, 4-alkyl, this is preferably methyl.
R6 preferably signifies C, 6-alkyl.
R7 preferably signifies optionally substituted phenyl.
RS and R9 both preferably signify hydrogen.
The D-forms of the compounds of formula I are especially preferred.
Preferred compounds of formula I are:
Succinimidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionate, ethyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]propionoxy]-acetamidate, n-butyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]propionoxy]-acetimidate, 2-isopropylideneaminooxy-ethyl D-2-[p-( -trifluoro-p-tolyloxy)phenoxy]-propionate and
diethoxyphosphinylmethyl D-2-[p-(α,α,α;-trifluoro-p-tolyloxy)phenxy]-propionate, The process in accordance with the invention for the manufacture of the compounds of formula I comprises
(a) reacting an acid of the formula
wherein R' and R2 have the significance given above, or a reactive derivative thereof, with a compound of the formula
wherein R3, R4, R5, m, n and p have the significance given above and X signifies a leaving group, or
(b) reacting a.phenol of the formula
wherein R' and R2 have the significance given above, or an alkali metal salt thereof, with a compound of the formula
wherein R3, R4, R5, m, n and p have the significance given above and Y signifies a leaving group.
Process variant (a) is an esterification which can be carried out according to methods known per se; for example, in accordance with the following variants (a1), (a2) and (a3):
Educt (a1) Free acid of formula II,
but especially a salt
thereof
Reagent
Compound of formula lil in which X stands, for example, for chlorine, bromine, iodine, mesyloxy or tosyloxy (a2) Halide, imidazolide or
anhydride of an acid of
formula II
Compound of formula
III in which X stands for hydroxy (a3) Free acid of formula ll Compound of formula
Ill in which X stands for hydroxy (III especially = oxime)
In process variant (a1), the term "salt" signifies, for example, an alkali metal salt (e.g. the sodium, potassium or lithium salt), an alkaline earth metal salt (e.g. the magnesium, calcium or barium salt), a salt of an organic base (e.g. a mono-, di- or trialkylammonium salt or a pyridinium salt) or the ammonium salt. The term "leaving group" used in connection with X preferably stands for chlorine, bromine, iodine, mesyloxy or tosyloxy.
The esterification of an acid of formula II or, preferably, a salt thereof, with a compound of formula Ill is preferably carried out in an inert solvent and at a temperature of about - 20"C to 1 00 C. A temperature range between 0 C and 40'C is especially preferred. Inert organic solvents are preferably used as the solvent. Preferred solvents are ethers (e.g. diethyl ether and tetrahydrofuran), chlorinated hydrocarbons (e.g. dichloromethane and chloroform) and dimethylformamide.
When a free acid of formula ll is used, the reaction is conveniently carried out in the presence of a base or an acid acceptor. For this purpose there can be used all customarily usable inorganic and organic acid-binding agents, preferably alkali metal and alkaline earth metal carbonates and bicarbonates and tertiary amines (e.g. triethylamine, dimethylaniline and pyridine).
The reaction according to process variant (a2) is conveniently carried out in an inert solvent such as an ether (e.g. diethyl ether), a hydrocarbon (e.g. n-hexane) or a chlorinated hydrocarbon (e.g. dichloromethane or chloroform) and at room temperature or an elevated temperature (e.g.
up to the reflux temperature of the reaction mixture). A temperature range between 0 C and 40"C is preferred and a temperature range between 1 0 C and 20"C is especially preferred.
When an acid halide of an acid of formula II is used, the reaction is conveniently carried out in the presence of an acid-binding agent. Inorganic bases (e.g. alkali metal and alkaline earth metal carbonates and bicarbonates) as well as organic bases (e.g. tertiary amines, especially triethylamine or pyridine) have been found to be suitable for this purpose. The acid halide is preferably the acid chloride.
In process variant (a3), the reaction is conveniently carried out in an inert organic solvent such as an ether (e.g. tetrahydrofuran) or a chlorinated hydrocarbon (e.g. dichloromethane or chloroform) and at a temperature between 0 C and 70"C. A temperature range between 1 0 C and 30"C is preferred. The reaction is conveniently carried out in the presence of an acid catalyst or a condensing agent such as, for example, sulphuric acid, hydrochloric acid, p toluenesulphonic acid, dicyclohexylcarbodiimide or carbonyldiimidazole.
Process variant (ay) is especially suitable where the compound of formula III is an oxime, i.e.
R5 signifies a group (d), m, n and p signify the number 0 and X signifies a hydroxyl group. An acid of fomula II is preferably reacted with an oxime of formula Ill in the presence of dicyclohexylcarbodiimide as the condensing agent. The acid is conveniently dissolved in an inert organic solvent such as a chlorinated hydrocarbon (e.g. dichloromethane, chloroform, carbon tetrachloride or trichloroethane), an ether (e.g. diethyl ether, diisopropyl ether or dioxan) or an aromatic hydrocarbon (e.g. benzene, toluene or xylene) and thereafter the oxime is suspended in the solution. The dicyclohexylcarbodiimide is likewise dissolved in the same solvent and added to the reaction mixture.The reaction is preferably carried out in a temperature range between 0 C and the boiling point of the reaction mixture, especially between room temperature and 50"C. The reaction is normally completed after about 2 hours.
In process variant (b), the term "leaving group" used in connection with Y signifies, for example, chlorine, bromine, iodine, mesyloxy or tosyloxy. The reaction is conveniently carried out in an inert organic solvent such as a hydrocarbon (e.g. benzene or toluene), an ether (e.g.
diethyl ether, dimethoxyethane or tetrahydrofuran) or hexamethylphosphoric acid triamide. The reaction temperature is not critical and the reaction is preferably carried out at a temperature between - 20"C and the reflux temperature of the reaction mixture, especially at a temperature between - 10"C and 30"C.
In each case the product obtained can be isolated and purified according to methods known per se.
Insofar as no planned synthesis for the isolation of pure isomers is carried out, the product normally occurs as a mixture of two or more isomers. The isomers can be separated according to methods known per se. If desired, they can also be manufactured by synthesis from corresponding optically active starting materials.
The starting materials of formulae 11, Ill, IV and V as well as reactive derivatives of the acids of formula II and alkali metal salts of the phenols of formula IV are either known or can be prepared in a manner known per se.
The compounds of formula I possess herbicidal properties and are especially suitable for the control of weed grasses, especially of slender foxtail (Alopecurus myosuroides) and types of millet such as, for example, cock's foot (Echinochloa crus-galli), great foxtail millet (Setaria faberii) and hair-like millet (Panicum capillare) in cereals, especially barley, oats and wheat cultivations, as well as in rice, cotton, soya, sugar beet and vegetable plantations. The compounds in accordance with the invention are particularly suitable for the control of weed grasses in cotton, soya, sugar beet and vegetable plantations.
In general, a concentration of 0. 1-6 kg of active substance of formula I per ha, preferably 0.6-2 kg of active substance of formula I per ha, is sufficient to produce the desired herbicidal effect.
The compounds of formula I are not only pre-emergence herbicides but also post-emergence herbicides.
The weed control compositions in accordance with the invention contain an effective amount of at least one compound of formula I, as defined above, as well as formulation adjuvants. The compositions conveniently contain at least one of the following formulation adjuvants: solid carrier substances; solvents or dispersion media; tensides (wetting and emulsifying agents); dispersing agents (without tenside action); and stabilizers. When using these and other adjuvants the compounds of formula I, namely the herbicidal active substances, can be converted into the usual formulations such as dusts, powders, granulates, solutions, emulsions, suspensions, emulsifiable concentrates, pastes and the like.
The compounds of formula I are generally insoluble in water and can be formulated according to the methods which are usual for water-insoluble compounds using the respective formulation adjuvants. The manufacture of the compositions can be carried out in a manner known per se; for example, by mixing the respective active substance with solid carrier substances, by dissolution or suspension in suitable solvents or dispersion media, if necessary using tensides as wetting or emulsifying agents and/or dispersing agents, by diluting pre-prepared emulsifiable concentrates with solvents or dispersion media etc.
As solid carrier substances there essentially come into consideration: natural mineral substances such as chalk, dolomite, limestone, aluminas and silicic acid and salts thereof (e.g.
siliceous earth, kaolin, bentonite, talc, attapulgite and montmorillonite); synthetic mineral substances such as highly dispersible silicic acid, aluminium oxide and silicates; organic substances such as cellulose, starch, urea and synthetic resins; and fertilizers such as phosphates and nitrates, whereby such carrier substances can be present as powders or as granulates.
As solvents or dispersion media there essentially come into consideration: aromatics such as benzene, toluene, xylenes and alkylnaphthalenes; chlorinated aromatics and chlorinated aliphatic hydrocarbons such as chlorobenzenes, chloroethylenes and methylene chloride; aliphatic hydrocarbons such as cyclohexane and paraffins (e.g. petroleum fractions); alcohols such as butanol and glycol, as well as their ethers and esters; ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone and cyclohexanone; and strongly polar solvents or dispersion media such as dimethylformamide, N-methyl-pyrrolidone and dimethyl sulphoxide, whereby such solvents preferably have flash points of at least 30"C and boiling points of at least 50"C, and water.
Among the solvents or dispersion media there also come into consideration so-called liquified gaseous extenders or carrier substances, these being products which are gaseous at room temperature and under normal pressure. Examples of such products are especially aerosol propellant gases such as halogenated hydrocarbons (e.g. dichlorodifluoromethane). If a weed control composition in accordance with the invention is present in the form of a pressurized pack, then a solvent is conveniently used in addition to the propellant gas.
The tensides (wetting and emulsifying agents) can be non-ionic compounds such as condensation products of fatty acids, fatty alcohols or fatty-substituted phenols with ethylene oxide; fatty acid esters and ethers of sugars or polyvalent alcohols; the products which are obtained from sugars or polyvalent alcohols by condensation with ethylene oxide; block polymers of ethylene oxide and propylene oxide; or alkyldimethylamine oxides.
The tensides can also be anionic compounds such as soaps; fatty sulphate esters (e.g. dodecyl sodium sulphate, octadecyl sodium sulphate and cetyl sodium sulphate); alkyl sulphonates, aryl sulphonates and fatty-aromatic sulphonates, such as alkylbenzene sulphonates (e.g. calcium dodecylbenzene sulphonate and butylnaphthalene sulphonates; and more complex fatty sulphonates, for example the amide condensation products of oleic acid and N-methyltaurine and the sodium sulphonate of dioctyl succinate.
Finally, the tensides can be cationic compounds such as alkyldimethylbenzylammonium chlorides, dialkyldimethylammonium chlorides, alkyltrimethylammonium chlorides and ethoxylated quaternary ammonium chlorides.
As dispersing agents (without tenside action) there essentially come into consideration: lignin, sodium and ammonium salts of lignin sulphonic acids, sodium salts of maleic acid anhydride/diisobutylene copolymers, sodium and ammonium salts of sulphonated polycondensation products of naphthalene and formaldehyde, and sulphite lyes.
As dispersing agents, which are especially suitable as thickening agents or anti-settling agents, there can be used, for example, methylcellulose, carboxymethylcellulose, hydroxyethylcellulose, polyvinyl alcohol, alginates, caseinates and blood albumin.
Examples of suitable stabilizers are acid-binding agents (e.g. epichlorohydrin, phenyl glycidyl ether and soya epoxides); antioxidants (e.g. gallic acid esters and butylhydroxytoluene); UVabsorbers (e.g. substituted benzophenones, diphenylacrylonitrile acid esters and cinnamic acid esters); and deactivators (e.g. salts of ethylenediaminotetraacetic acid and polyglycols).
The weed control compositions in accordance with the invention can contain, in accition to the compounds of formula I, synergists and other active substances (e.g. insecticides, acaricides, bactericides, other herbicides, fungicides, plant growth regulators and fertilizers). Such combination compositions are suitable for intensifying the activity or for broadening the spectrum of activity.
The weed control compositions in accordance with the invention generally contain between 0.1 and 99 weight percent, preferably between 5 and 75 weight percent, of one or more compounds of formula I as the active substance(s). They can be present, for example, in a form which is suitable for storage and transport. In such formulations (e.g. emulsifiable concentrates) the active substance concentration is normally in the higher range, preferably between 10 and 75 weight percent, especially between 25 and 50 weight percent. These formulations can subsequently be diluted, for example, with the same or different inert substances, to give active substance concentrations which are suitable for practical use, i.e. preferably about 0.1 to 10 weight percent, especially about 1 to 5 weight percent. The active substance concentrations can, however, also be smaller or greater.
Conveniently, in the weed control compositions in accordance with the invention the solid carrier substances are present in a concentration range between 1 and 99.9%, the solvents or dispersion media are present in a concentration range between 1 and 99.9%, the tensides are present in a concentration range between 1 and 20%, the dispersing agents are present in a concentration range between 1 and 20%, the dispersing agents as thickening or anti-settling agents are present in a concentration range between 0.1 and 5% and the stabilizers are present in a concentration range between 0.1 and 5%, these percentages referring to the total weight of the composition.
As mentioned above, the manufacture of the weed control compositions in accordance with the invention can be carried out in a manner known per se.
For the manufacture of pulverous preparations the active substance, i.e. at least one compound of formula I, can be mixed with solid carrier substance (e.g. by grinding together); or the solid carrier substance can be impregnated with a solution or suspension of the active substance and then the solvent or dispersion medium can be removed by evaporation, heating or sucking-off under reduced pressure. By adding tensides or dispersing agents such pulverous preparations can be made readily wettable with water, so that they can be converted into aqueous suspensions which are suitable, for example, as spray compositions.
The compounds of formula I can also be mixed with a tenside and a solid carrier substance to form a wettable powder which is dispersible in water, or they can be mixed with a solid pregranulated carrier substance to form a product in the form of a granulate.
If desired, the compounds of formula I can be dissolved in a water-immiscible solvent such as, for example, a high-boiling hydrocarbon, which conveniently contains a dissolved emulsifying agent, so that the solution becomes self-emulsifying upon addition to water. Alternatively, the active substance can be mixed with an emulsifying agent and the mixture can then be diluted with water to the desired concentration. Moreover, the active substance can be dissolved in a solvent and thereafter the solution can be mixed with an emulsifying agent. Such a mixture can likewise be diluted with water to the desired concentration. In this manner there are obtained emulsifiable concentrates or ready-for-use emulsions.
The use of the weed control compositions in accordance with the invention can be carried out according to usual application methods such as sprinkling, spraying, dusting, pouring or scattering. The method in accordance with the invention for the cqntrol of weeds comprises treating the locus to be protected against weeds and/or the weeds with a compound in accordance with the invention or with a weed control composition in accordance with the invention.
The following Examples illustrate the present invention:
I. Manufacture of the active substances of formula I:
Example I
0.47 g of pyridine is added dropwise to a solution, cooled at 5 C, of 1.72 g D-2-[p-(α,α,α- trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 0.58 g or 2-isopropylidineaminooxy-ethanol in 40 ml of benzene. The mixture is stirred at room temperature for 1 hour and subsequently evaporated to dryness under reduced pressure. Thereafter, the residue is dissolved in diethyl ether/n-hexane (1:1) and the solution is extracted with water and dilute sodium bicarbonate solution, dried over a drying agent and finally evaporated to dryness.
The liquid residue is purified by chromatography on silica gel with acetone/n-hexane (1:7).
There is obtained 2-isopropylideneaminooxy-ethyl D-2-[α,α,α-trifluoro-p-tolyloxy)phenoxy]-pro- pionate; n20D = 1.5088; [α]22D = ~ 13.9 (c = 1.0% in CHCl3).
ln an analogous manner, from D-2-[p-(α,α,α-trifluoro-tolyloxy)phenoxy]-propionyl chloride and N-hydroxymethyl-acetamide there is obtained acetamidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionate; m.p. 103-105 C; [α]22D = 13.5 9c = 1.1% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and N-hydroxymethyl-chloroacetamide there is obtained chloroacetamidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy] propionate; m.p. 98-99 C; [α]22D=19.8 (c = 0.7% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propional chloride and N-hydroxymethyl-trichloroacetamide there is obtained trichloroacetamidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phe noxylpropionate; n2g= 1.5320; (a]20= + 14.8 (c=0.6% in CHCI3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-methanesulphonamido-ethanol there is obtained 2-methanesulphonamido-ethyl D-2-[p-(α,α,α-trifluoroo-p-tolyloxy)phe- noxy]-propionate; m.p. 65-68 C; [α]22D= + 24.6 (c = 1.1% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and N-hydroxymethyl-succinimide there is obtained succinimidomethyl D-2-[p-α,α,α-trifluoro-p-tolyloxy)-phenoxy]-propion- ate; m.p. 74-76éC; [α]22D = + 13.5 (c = 1.3% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and N-hydroxymethylphthalimide there is obtained phthalimidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-pro- pionate: m.p. 99-100 C; [α]22D = 4.9 (c = 0.7% on CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and diethoxyphosphinylmethanol there is obtained diethoxyphosphinylmethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]- propionate; n20D = 1.5008; [α]22D = 27.5 (c = 1.0% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-diethoxyphosphinylethanol there is obtained 2-diethoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]- propionate; n20D = 1.5001; [α]20D = +20.7 (c = 0.7% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 1-diethoxyphosphinyl ethanol there is obtained 1-diethoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]- propionate; n20D= 1.4963; [α]22D = + 20.3 (c = 1.3% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 1 -diethoxyphosphinyl-n- butanol there is obtained 1 -diethoxyphosphinyl-n-butyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phe- noxy]-propionate; n20D= 1.4945: [α]22D = + 23.0 (c = 1.4% in CHCl3);
from D-2-[p-(α,α,α-trifluro-p-tolyloxy)phenoxy]-propionyl chloride and α-diethoxychosphinyl- benzyl alcohol there is obtained a-diethoxyphosph inyl-benzyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)- phenoxy]-propionate; n2,0= 1.5228; [α]22D= + 25.5 (c = 0.7% in CHCl9);
from D-2-[p-(p-iodophenoxy)phenoxy]-propionyl chloride and 2-isopropylideneaminooxy-ethanol there is obtained 2-isopropylideneaminooxy-ethyl D-2-[p-(p-iodophenoxy)phenoxy]-propion- ate; [α]22D = + 12.6 (c = 1.2% in CHCl3);;
from D-2-[p-(p-iodophenoxy)phenoxy]-propionyl chloride and 2-methanesulphoamido-ethanol there is obtained 2-methanesulphonamido-ethyl D-2-[p-(p-iodophenoxy)phenoxy]-propionate; m.p. 84-87'C; [aY2= + 23.2" (c = 1.0% in CHCl3);
from D-2-[p-(p-iodophenoxy)phenoxy]-propionyl chloride and N-hydroxymethyl-succinimide there is obtained succinimidomethyl D-2-[p-(p-iodophenoxy)phenoxy]-propionate; [α]22D= + 11.5" (c = 0.8% in CHCl3);
from D-2-[p-(p-iodophenoxy)phenoxy]-propionyl chloride and diethoxyphosphinylmethanol there is obtained diethoxyphosphinylmethyl D-2-[p-(p-iodophenoxy)phenoxy-propionate; [α]22D= + 23.7 (c = 1.7% in CHCl3);;
from D-2-[p-(p-iodophenoxy)phenoxy)-propionyl chloride and 2-diethoxyphosphinyl-ethanol there is obtained 2-diethoxyphosphinyl-ethyl D-2-[p-(p-iodophenoxy)phenoxy]-propionate; [α]22D = + 19.7% (c = 1.3% in CHCl3);'
from D-2-[p-(o-chloro-p-iodophenoxy)phenoxy]-propionyl chloride and 2-isopropylideneaminooxy-ethanol there is obtained 2-isopropyl ideneaminooxy-ethyl D-2-[p-(o- chloro-p-iodophenoxy)phenoxy]-propionate; [α]20d = + 11.7" (c = 0.9% in CHCl3);
from D-2-[p-(o-chloro-p-iodophenoxy]-propionyl chloride and 2-methanesulphonamido-ethanol there is obtained 2-methanesulphonamido-ethyl D-2-[p-(o-chloro-p-iodophenoxy)phenoxy]-pro- pionate; [α]20D - + 19.4 (c = 0.8% in CHCl3);;
from D-2-[p-(o-chloro-p-iodophenoxy)phenoxy]-propionyl chloride and diethoxyphosphinylmethanol there is obtained diethoxyphosphinylmethyl D-2-[p-(o-chloro-p- iodophenoxy)phenoxy]propionate; [ai20= + 19.7" (c= 1.6% in CHCI3);
from D-2 chloride and dibutoxyphosphinylmethanol there is obtained dibutoxyphosphinyl methyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]- propionate; n20D= 1.4932; [α]20D = + 23.2 (c = 0.60% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride ethanol there is obtained 1 -diphenoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]- propionate; n20D = 1.5449; [α]22D = ~ 7.3 (c = 1.1% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 1-isopropylideneaminooxy-2-propanol there is obtained 1 -isopropylideneam i nooxy-2-propyl D-2-[p-(a,a, a-trifl uoro-p- tolyloxy)phenoxy]-propionate; n20D = 1.5026; [α]22D = + 19.0 (c = 1.1% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 1 -isopropylideneaminooxy-2-butanol there is obtained 1 -isopropylideneaminooxy-2-butyl D-2-[p-(α,α,α-trifluoro-p- tolyloxy)phenoxy]-propionate; n2,0= 1.5023;[α]22D= + 20.7" (c = 1.0% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-isopropylideneami nooxy- 1 -phenyl-ethanol there is obtained 2-isopropylideneaminooxy- l-phenylethyl D-2-[p-(a,a,atrifluoro-p-tolyloxy)phenoxy]-propionate; [α;]22D= + 19.8 (c = 0.9% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-(2-butylideneaminooxy)-ethanol there is obtained 2-(2-butylideneami nooxy)-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl phenoxy]-propioate; n20D = 1.5072; [α]22D= + 13.7 (c = 1.1% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-(a-methylbenzyl ide- neaminooxy)-ethanol there is obtained 2-(a-methylbenzylideneaminooxy)-ethyl D-2-[p-(a,a,a-trifluoro-p-tolyloxy)phenoxy]-propionate; n20D= 1.5456; [α]22D = + 7.6é (c = 1.0% in CHCl3);
from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionyl chloride and 2-cyclohexylideneaminooxy-ethanol there is obtained 2-cyclohexylideneaminooxy-ethyl D-2-[p-(a,a,a-trifluoro-p-tolylox- y)phenoxy]-propionate; n20D= 1.5201; [α']20D= + 11.7 (c = 1.1% in CHCl3).
Example 2 3.0g of D-2-[p-α,α,α-trifluoro-p-tolyloxy)-phenoxy]-propionic acid are suspended in 1 Oml of dichloromethane and 1.3g of ethylacetoacetate oxime are added at room temperature. A solution of 1 .9g of dicyclohexylcarbodiimide in 1 Oml of dichloromethane is added dropwise to the suspension during 10 minutes, the temperature of the mixture thereby rising to 40"C. The mixture is stirred at room temperature for a further 2 hours and subsequently filtered. The filtrate is evaporated to dryness under reduced pressure. There is obtained ethyl 3-[D-2-[p-(a,a,a- trifluoro-p-tolyloxy)-phenoxy]-propionoxyimino]-butyrate; [α]20D= + 39.8 (c = 1.0% in CHCl3).
In an analogous manner, from D-2-[p-α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and l,l,l-trifluoroacetone oxime there is obtained D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionic acid l,l,l-trifluoroacetone oxime ester; [aJ20= + 39.5" (c= 1.0% in CHCI3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and l-hydroxyimino-diethyl ether there is obtained ethyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)]-propionoxy]-acetimidate; n20D= 1.5087; [α]22D= + 53 (c = 0.9% in CHCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionic acid and n-butyl (I-hydroxyiminoethyl) ether there is obtained n-butyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxyl-prnpionoxy)-acetimi- date; n20D= 1.5036; [α]22D= + 49.87 (c = 1.2% in CHCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and ethyl [I-hydroxyimino-n-butyl) ether there is obtained ethyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)-phenoxy]-propionoxy]-n-butyri- midate; n20D= 1.5058; [α]20D= + 52.58 (c = 1.0% in CHCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and methoxyacetone oxime there is obtained D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid methoxyacetone oxime ester; (aP0= + 48.772 (c = 1.9% in CHCI3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and diacetone monoxime there is obtained D-2-[p-(a,a,a-trifluoro-p-tolyloxy) phenoxy]-propionic acid diacetone monoxime ester; [α]20D= + 30.7" (c = 1.0% in CKCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and ethyl pyruvate oxime there is obtained ethyl 2-[D-2[p-(α,α,α-trifluoro-p-tolyloxy))phenoxy-propionic 2g= + 45.01%) = 2.0% in CHCl3); from D-2-[p(α,α,α;-trifluoro-p-tolyloxy)phenoxy-propionic acid and ethyl o-methyl-acetoacetate oxime there is obtained ethyl 2-methyl-3-[D-2-[p-(α,αα-trifluoro-p-tolyloxy)-phenoxy]-propionoxy- imino]-butyrate;[α]20D= + 41.07 (c = 0.9% in CHCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and ethyl levulinate oxime there is obtained ethyl 4-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionoxy- [α]20D= + 37.4 (c = 1.2% in CHCl3; from D-2-[p-(o-chloro-p-trifluoromethyl-phenoxy) phenoxyl]-propionic acid and 2-isopropylideneaminooxy-ethanol there is obtained 2-isopropylideneaminooxy-ethyl D-2-[p-(o-chloro-p-trifluoro- methyl-phenoxy) phenoxyi-prnpionate; [α]20D= + 12.3" (c = 0.69% in CHCl3); from D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionic acid and cyclopentanone oxime there is obtained D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxyj-propionic acid cyclopentanone oxime ester; [α]20D= + 40.8 (c = 1.0% in CHCl3).
Example 3
A solution of 1.799 of D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid, 1.30g of 1diethoxy-phosphinyl-cyclohexanol and 0.069 of 4-dimethylamino-pyridine in 20ml of dichloromethane is treated at room temperature with 1.1 3g of dicyclohexylcarbodiimide and the mixture is stirred for 24 hours. The mixture is then evaporated to dryness under reduced pressure, the residue is dissolved in diethyl ether/n-hexane (1:1) and the insoluble part of the residue is filtered off under suction. Subsequently the filtrate is washed twice with 30ml of 5% acetic acid each time and three times with 30 ml of water each time, dried over a drying agent and evaporated to dryness.The liquid residue is purified by chromatography on silica gel with dich!oromethane/ diethyl ether (1:1). There is obtained 1-diethoxy-phosphinyl-cyclohexyl D-2-[p- (ata,a-trifluoro-p-tolyloxy)-phenoxy]-propionate; n2g= 1.5073.
In an analogous manner, from D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid and 2-dimethoxyphosphinyl-2-propanol there is obtained 2-dimethoxypghosphinyl-2-propyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phe- noxy]-propionate; n20D= 1.5019; [α]22D= + 7.6 (c = 1.2% in CHCl3).
Example 4
A mixture of 1.89 g of D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionic acid, 1.43 g of 3diethoxyphosphinylpropyl bromide, 0.40 g of potassium carbonate and 50 ml of absolute acetone is heated at reflux for 15 hours. Thereafter, the mixture is eveporated to dryness under reduced pressure and the residue is dissolved in diethyl ether. The solution is washed twice with 25 ml of water each time and extracted twice with 25 ml of sodium bicarbonate solution each time, dried over a drying agent and evaporated to dryness.
The liquid residue is purified by chromatography on silica gel with dichloromethane. There is obtained 3-diethoxyphosphinyl-propyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionate; n2,0= 1.4986; [α]22D= + 20.52" (c = 0.9% in CHCl3).
In an analogous manner, from D-2-[p-(p.iodophenoxy) phenoxyj-prnpionic acid and 3-diethoxyphosphinylpropyl bromide there is obtained 3-diethoxyphosphinyl-propyl D-2-[p-(p-iodophenoxy) phenoxyj-propionate; [aj%2= + 20.4" (c = 1.2% in CHCl3).
II. Formulation Examples:
Example 5
For the manufacture of an emulsifiable concentrate the following ingredients are mixed with one another:
Compound of formula 1 500 g
Mixture of condensation products of an alkylphenol and ethylene oxide and calcium dodecylbenzenesulphonate 100 g
Epoxidated soya oil with an oxirane oxygen content of about 6% 25 g
Butylated hydroxytoluene 10 g
The mixture is made up to 1 litre with xylene.
The thus-obtained concentrate emulsifies spontaneously in water. The resulting emulsion is suitable as a ready-for-use spray liquor.
Example 6
For the manufacture of an emulsifiable concentrate the following ingredients are mixed with one another:
Compound of formula 1 250 g/l
N-Methyl-2-pyrrolidone 300 g/i Emulsifier A') 1 00 g/l
Emulsifier B2) 25 g/l
Solvent mixture of alkylbenzenes to 1000 ml "Emulsifier A: Emulsifier consisting of 60 parts of a block polymerisate of ethylene oxide and proplyene oxide, 20 parts of the calcium salt of a branched-chain dodecylbenzenesulphonic acid and 20 parts of a solvent mixture of isobutanol and C10-alkylbenzenes.
2)Emulsifier B: Mixture of 70 parts of the calcium salt of a branched-chain dodecylbenzenesulphonic acid and 30 parts of a solvent mixture of isobutanol and C10-alkylbenzenes.
The thus-obtained concentrate emulsifies spontaneously in water. The resulting emulsion is suitable as a ready-for-use spray liquor.
111. Biological Results:
Example 7
The formulation of Example 6 is sprayed on the test weeds (Lolium multiflorum or Bromus inermis) in fixed dilutions with water containing 0.5 volume percent of Nonoxynol (condensation product of nonylphenol and ethylene oxide). The spraying is carried out by means of a logarithmic spray apparatus which enables the concentration of the active substance to be halved automatically after fixed intervals. The spray volume amounts to 500 1 /ha. 33 days after the spraying the weeds are investigated for the effect which has occurred, i.e. there is determined the dosage at which a satisfactory control of the weeds is achieved. The results are compiled in Table I hereinafter.
Table 1
Dosage (g of active substance/ha)
Active substance of Lolium Bromus
formula I multiflorum inermis
Ethyl N-[D-2-[p-(a,a,a- -trifluoro-p-tolyloxy)- phenoxy]-propionoxy]-n -butyrimidate 165 165 n-Butyl N-[D-2-[p-(a,a,a- -trifluoro-p-tolyloxy)phenoxy]-propionoxy] -acetimidate 1 25 220
Example 8
The active substance is tested in the formulation of Example 6. Shortly before the beginning of the test, it is diluted to the desired concentration with water containing 0.5 volume percent of
Nonoxynol as the wetting agent.
The test weeds (Oryza sativa) in the 2 leaf stage are sprayed in a greenhouse with the thus formulated active substance. Subsequently, a 16 hours day is simulated by means of mercury lamps. Three weeks after the spraying the weeds are investigated for the effect which has occurred, i.e. the percentage necrosis is determined, with a 100% necrosis corresponding to a complete destruction of the weeds. The results are compiled in the Table II hereinafter.
Table II
Active substance of Dosage % Necrosis
formula I g/ha (Oryza sativa) D-2-[p-(α,α,α-Trifluoro- -p-tolyloxy) phenoxy]
propionic acid methoxy
acetone oxime ester 150 90
Claims (23)
1. Compounds of the general formula
wherein R' signifies chlorine, bromine, iodine or trifluoromethyl,
R2 signifies hydrogen, chlorine, bromine or iodine,
R3 signifies hydrogen or C, 4-alkyl, R4 signifies hydrogen; C, 4-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro, whereby
R3 and R4 together with the carbon atom to which they are attached can also form a C58- cycloalkane ring which, if desired, can be substituted with 1 to 3 C, 4-alkyl groups, m, n and p signify the number 0 or 1 and R5 signifies one of the following groups (a) - (f):: -NHCO-R6 (a) -NHSO2-R7 (b)
whereby in the above formulae of the groups (a) - (f)
R6 signifies hydrogen; C1-6-alkyl; C, 4-haloalkyl; or phenyl, optionally substituted with halogen,
C1-4-alkyl and / or nitro,
R7 signifies C, 6-alkyl;; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro,
R8 and R9 stand for hydrogen or together signify a bond, trimethylene, tetramethylene, 2butenylene or a fused benzene ring,
R10 signifies C1-6-alkyl and R11 signifies trifluoromethyl, C1-6-alkoxy, C1-6-alkoxy-C1-4-alkyl, C2-7alkanoyl, C2 7-alkoxycarbonyl or C2-7-alkoxycarbonyl-C1-4-alkyl, or R10 and R11 together with the
carbon atom to which they are attached form a cyclopentane ring which, if desired, can be
substituted with 1 to 3 C1 4alkyl groups and/or 1 C, 4-alkoxy group, whereby, where
R10, R"and the carbon atom form an optionally substituted cyclopentane ring, R' is chlorine,
bromine or trifluoromethyl,
R12 signifies hydrogen or C1-8-alkyl and R13 signifies C, 6-alkyl;; or phenyl, optionally substituted
with halogen, C1-4-alkyl and/or nitro, or R12 and R'3 together with the carbon atom to which
they are attached form a C5 7-cycloalkane ring, and
R'4 and R15 signify C1 6-alkyl or phenyl, and whereby, when R5 represents a group (a), (b) or (c),
m signifies the number 1, n signifies the number 0 and p signifies the number 0 or 1; when R5 represents a group (d), m, n and p signify the number 0; when R5 represents a group (e), m signifies the number 0 and n and p signify the number 1; and when R5 represents a group (f), m and p signify the number 0 or 1 and n signifies the number 1.
2. Compounds according to claim 1, wherein R1 signifies iodine or trifluoromethyl.
3. Compounds according to claim 1 or claim 2, wherein R2 signifies hydrogen or chlorine.
4. The D-isomers of the compounds according to any one of claims 1 to 3.
5. Succinimidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionate.
6. Ethyl N [D- 2-[p-(a, a, a-trifluoro-p-tolyloxy)-phenoxy-propionoxy]-acetim idate.
7. n-Butyl N-[D-2-[p-(α,α,α-trifluoro-p-tolyoxy) phenoxy]-propionoxy]-aceti midate.
8. 2-lsopropylideneaminooxy-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy)phenoxy]-propionate.
9. Diethoxyphosphinylmethyl D-2-[p-(ata,a-trifluoro-p-tolyloxy)phenoxy]-propionate.
10. A compound according to claim 1, selected from: Acetamidomethyl D-2-[p-(α,α,α- trifluoro-p-tolyloxy) phenoxy]-propionate,
chloroacetamidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
trichloroaceta m idomethyl D-2-(p-(a, a, a-trifluoro-p-tolyloxy) phenoxy]-propionate,
2-methanesulphomanido-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
phthalimidomethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
2-diethoxyphosphinyl-ethyl D-2-(p-(a, α,α-trifluoro-p-tolyloxy) phenoxy]-propionate, 1-diethoxyphosphinyl-ethyl D-2-[p-(α;,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
1-diethoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate, α-diethoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
ethyl 3-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)-phenoxy]-propionoxyimino]-butyrate, D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxyj-prnpionic acid 1 ,1,1 -trifluoroacetone oxime ester,
ethyl N-(D-2-[p-(a, a, α;-trifluoro-p-tolyloxy)-phenoxy]-propionoxy]-n-butyrimidate, D-2-[p-(a,a,a-trifluoro-p-tolyloxy) phenoxy]-propionic acid methoxyacetone oxime ester,
D-2-[p-(a,a,a-trifluoro-p-tolyloxy) phenoxyl-propionic acid diacetone monoxime ester,
ethyl 2-[D-2-[p-)α,α,α-trifluoro-p-tolyloxy)-phenoxyl]-propionoxyimino]-propionate, ethyl 2-methyl-3-[D-2-(p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionoxyimino]-butyrate,
ethyl 4-[D-2-[p-(α,α,α-trifluoro-p-tolyloxy)-phenoxy]-propionoxyimino]-n-valerate, 2-isopropylideneaminooxy-ethyl D-2-[p-(α-chloro-p-trifluoromethyl-phenoxy]-propion- ate, D-2-[p-(α,α,α;-trifluoro-p-tolyloxy) phenoxyl-propionic acid cyclopentanone axime ester,
1-diethoxyphosphinyl-cyclohexyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
2-dimethoxyphosphinyl-2-propyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate and
3-diethoxyphosphinyl-propyl D-2-[p-(a, a, α-trifluoro-p-tolyloxy) phenoxy]-propionate.
11. A compound according to claim 1, selected from:
2-lsopropylideneaminooxy-ethyl D-2-[p-(p-iodophenoxy) phenoxy]-propionate,
2-methanesulphonamido-ethyl D-2-[p-(p-iodophenoxy)-phenoxy]-propionate,
succinimidomethyl D-2-[p-(p-iodophenoxy) phenoxy]-propionate.
diethoxyphosphinylmethyl D-2-[p-(p-iodophenoxy)-phenoxy]-propionate,
2-diethoxyphosphinyl-ethyl D-2-[p-(p-iodophenoxy)-phenoxy]-propionate,
2-isopropylidencaminooxy-ethyl D-2-[p-(α-chloro-p-iodophenoxy) phenoxy]-propionate,
2-methanesulphonamido-ethyl D-2-[p-(o-chloro-p-iodophenoxy)phenoxy]-propionate,
diethoxyphosphinylmethyl D-2-[p-(o-chloro-p-iodophenoxy) phenoxyl-propionate,
dibutoxyphosphinylmethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
1-diphenoxyphosphinyl-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
1-isopropylideneaminooxy-2-propyl D-2-[p-(αp;,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
1-isopropylideneaminooxy-2-butyl D-2-[p-(α,α;,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
1 -isopropyl ideneaminooxy-1 -phenylethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxyj-prnpion- ate,
2-(2-butylideneaminooxy)-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate, 2-(α-methylbenzylideneaminooxy)-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate,
2-cyclohexylideneaminooxy-ethyl D-2-[p-(α,α,α-trifluoro-p-tolyloxy) phenoxy]-propionate and
3-diethoxyphosphinyl-propyl D-2-[p-(p-iodophenoxy)-phenoxy]-propionate.
12. A compound according to any one of claims 1 to 10 as a weed control agent.
13. A compound according to claim 11 as a weed control agent.
14. A weed control composition, which contains an effective amount of at least one compound of the general formula
wherein R' signifies chlorine, bromine, iodine or trifluoromethyl,
R2 signifies hydrogen, chlorine, bromine or iodine,
R signifies hydrogen or C1-4-alkyl,
R4 signifies hydrogen; C1-4-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro, whereby R and R4 together with the carbon atom to which they are attached can also form a C5-a-cycloalkane ring which, if desired, can be substituted with 1 to 3 C1-4-alkyl groups, m, n and p signify the number 0 or 1
and R5 signifies one of the following groups (a) - (f):
whereby in the above formulae of the groups (a) - (f)
R6 signifies hydrogen;C1-6-alkyl-C1-4-haloalkyl; or phenyl, optionally substituted with halogen,
C1-4-alkyl and/or nitro
R7 signifies C, 6-alkyl; or phenyl, optionally substituted with halogen, C1-4 alkyl and/or nitro
R8 and R9 stands for hydrogen or together signify a bond, trimethylene, tetramethylene, 2butenylene or a fused benzene ring,
R10 signifies C1-6-alkyl and R11 signifies trifluoromethyl, C1-6-alkoxy, C1-6-alkoxy-C1-4-alkyl, C2-7alkanoyl, C2 7-alkoxycarbonyl or C2-7-alkoxycarbonyl-C1-4-alkyl, or R10 and R11 together with the carbon atom to which they are attached form a cyclopentane ring which, if desired, can be substituted with 1 to 3 C1-4-alkyl groups and/or 1 C, 4-alkoxy group, whereby, where R10,R11 and the carbon atom form an optionally substituted cyclopentane ring, R1 is chlorine, bromine or trifluoromethyl,
R12 signifies hydrogen or C1-6-alkyl and R13 signifies C, 6-alkyl; or phenyl, optionally substi-tuted with halogen, C1-4-alkyl and/or nitro, or R12 and R13 together with the carbon atom to which they are attached form a C5 7-cycloalkane ring and R14 and R15 signify C1-6-alkyl or phenyl, and whereby, when R5 represents a group (a), (b) or (c), m signifies the number 1, n signifies the number 0 and p signifies the number 0 or 1; when R5 represents a group (d), m, n and p signify the number 0; when R5 represents a group (e), m signifies the number 0 and n and p signify the number 1; and when R5 represents a group (f), m and p signify the number 0 and 1 and n signifies the number 1, as well as formulation adjuvants.
15. A weed control composition according to claim 14, which contains an effective amount of one of the compounds set forth in claims 5 to 9.
16. A process for the manufacture of compounds of the general formula
wherein R' signifies chlorine, bromine, iodine or trifluoromethyl,
R2 signifies hydrogen, chlorine, bromine or iodine,
R3 signifies hydrogen or C1-4-alkyl,
R4 signifies hydrogen; C1-4-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro, whereby R3 and R4 together with the carbon atom to which they are attached can also form a C5 8-cycloalkane ring which, if desired, can be substituted with 1 to 3 C1-4-alkyl groups, m, n and p signify the number 0 or 1 and R5 signifies one of the following groups (a) . (f): -NHco-R6 (a) -NHSO2-R7 (b)
whereby in the above formulae of the groups (a) - (f)
R6 signifies hydrogen;C1-6-alkyl; C, 4-haloalkyl; or phenyl, optionally substituted with halogen,
C1-4-alkyl and/or nitro,
R7 signifies C1-6-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro,
R8 and R9 stand for hydrogen or together signify a bond, trimethylene, tetramethylene, 2-butenylene or a fused benzene ring,
R10 signifies C1-6-alkyl and R signifies trifluoromethyl, C1-6-alkoxy, C1-6-alkoxy-C1-4-alkyl, C2-7alkanoyl, C27-alkoxycarbonyl or C2-7-alkoxycarbonyl-C1-4-alkyl, or R'D and R11 together with the carbon atom to which they are attached form a cyclopentane ring which, if desired, can be substituted with 1 to 3 C1 4-alkyl groups and/or 1 C, 4-alkoxy group, whereby, where R' , R11 and the carbon atom form an optionally substituted cyclopentane ring, Rl is chlorine, bromine or trifluoromethyl,
R12 signifies hydrogen or C1-6 -alkyland R13 signifies Cl 6-alkyl; or phenyl, optionally substituted with halogen, C1-4-alkyl and/or nitro, or R12 and R'3 together with the carbon atom to which they are attached form a C5-7-cycloalkane ring, and
R14 and R'5 signify C1-6-alkylo or phenyl, and whereby, when R5 represents a group (a), (b) or (c), m signifies the number 1, n signifies the number 0 and p signifies the number 0 or 1; when R5 represents a group (d), n, n and p signify the number 0; when R5 represents a group (e), m signifies the number 0 and n and p signify the number 1; and when R5 represents a group (f), m and p signify the number 0 or 1 and n signifies the number 1, which process comprises (a) reacting an acid of the formula
wherein R' and R2 have the significance given earlier in this claim, or a reactive derivative thereof, with a compound of the formula
wherein R3, R4, R5, m, n and p have the significance given earlier in this claim and X signifies a leaving group, or
(b) reacting a phenol of the formula
wherein R' and R2 have the significance given earlier in this claim, or an alkali metal salt thereof, with a compound of the formula
wherein R3, R4, R5, m, n and p have the significance given earlier in this claim and Y signifies a leaving group.
1 7. A method for the control of weeds, which method comprises treating the locus to be protected against weeds and/or the weeds with an effective amount of one of the compounds set forth in claims 1 to 10 or of a composition set forth in claim 14 or claim 1 5.
1 8. A method for the control of weeds, which method comprises treating the locus to be protected against weeds and/or the weeds with an effective amount of one of the compounds set forth in claim 11.
19. The use of one of the compounds set forth in claims 1 to 10 or of a composition set forth in claim 14 or claim 1 5 for the control of weeds.
20. The use of one of the compounds set forth in claim 11 for the control of weeds.
21. A compound of formula I according to claim 1, whenever produced by a process according to claim 1 6 or by an obvious chemical equivalent thereof.
22. A weed control composition according to claim 14, substantially as described herein with reference to Example 5 or 6.
23. A process according to claim 16, substantially as described with reference to any one of
Examples 1 to 4.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH934580 | 1980-12-18 | ||
CH572281 | 1981-09-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2091248A true GB2091248A (en) | 1982-07-28 |
Family
ID=25698273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8138135A Withdrawn GB2091248A (en) | 1980-12-18 | 1981-12-17 | Herbicidal propionic acid esters |
Country Status (10)
Country | Link |
---|---|
EP (1) | EP0054715A3 (en) |
AR (1) | AR230429A1 (en) |
AU (1) | AU7846381A (en) |
CA (1) | CA1156663A (en) |
DK (1) | DK561581A (en) |
ES (1) | ES508104A0 (en) |
FI (1) | FI814059L (en) |
GB (1) | GB2091248A (en) |
IL (1) | IL64523A0 (en) |
NO (1) | NO814332L (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5801272A (en) * | 1993-06-01 | 1998-09-01 | Basf Aktiengesellschaft | Preparation of mixtures of (R)- and (S)-2-(4-alkanoylphenoxy)- or (R)- and (S)-2-(4-aroylphenoxy)propionic esters |
WO1999009994A1 (en) * | 1997-08-22 | 1999-03-04 | Bayer Aktiengesellschaft | Use of cycloalcane-phosphonic acid esters for treating mental disorders and depressions |
CN100412078C (en) * | 2004-02-26 | 2008-08-20 | 华中师范大学 | Fluorine substituted phenoxy acetyl oxide alkyl phosphonate ester and salt with weeding active and preparation process thereof |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5832890A (en) * | 1981-08-21 | 1983-02-25 | Sumitomo Chem Co Ltd | Phosphonic ester derivative, its preparation, hebicide containing the same as active ingredient |
CA1246571A (en) * | 1983-04-06 | 1988-12-13 | Georg E. Frater | Propionic acid esters |
CA1249993A (en) * | 1983-10-18 | 1989-02-14 | Paul Winternitz | Aryloxyphenoxy(acyloxy)alkyloximes, -carbamates and-phosphonates |
DK160818C (en) * | 1983-12-30 | 1991-10-07 | Hoffmann La Roche | N-RING containing glycerol derivatives, processes for their preparation, their use for the preparation of a platelet activation factor inhibitor, and drugs containing such a compound |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2617804C2 (en) * | 1976-04-23 | 1985-01-24 | Hoechst Ag, 6230 Frankfurt | 2- (4-Phenoxy phenoxy) propionic acid derivatives and their use as herbicides |
US4200587A (en) * | 1977-11-28 | 1980-04-29 | Hoffmann-La Roche Inc. | 2-[P-(p-Substituted phenoxy)phenoxy]propionyl oximes |
DE2860453D1 (en) * | 1978-01-10 | 1981-02-26 | Ciba Geigy Ag | Herbicidally active 4-(p-phenoxy-phenoxy)-alpha-propionic acid alkoxyalkylamides, process for their preparation, herbicidal agents containing them and their use |
DE2839828C2 (en) * | 1978-09-13 | 1983-09-15 | Vsesojuznyj naučno-issledovatel'skij institut fitopatologii, p/o B. Vjazemy, Odincovskij rayon, Moskovskaja oblast' | 0,0-Diaryl-1-acyloxy-2,2,2-trichloroethylphosphonate and fungicides based thereon |
CA1142540A (en) * | 1979-12-12 | 1983-03-08 | Georg Frater | Propionic acid esters |
ZA811357B (en) * | 1980-03-10 | 1982-03-31 | Hoffmann La Roche | Oxime esters |
-
1981
- 1981-10-29 EP EP81109203A patent/EP0054715A3/en not_active Withdrawn
- 1981-11-09 CA CA000389700A patent/CA1156663A/en not_active Expired
- 1981-12-11 AU AU78463/81A patent/AU7846381A/en not_active Abandoned
- 1981-12-11 IL IL64523A patent/IL64523A0/en unknown
- 1981-12-16 AR AR287825A patent/AR230429A1/en active
- 1981-12-17 GB GB8138135A patent/GB2091248A/en not_active Withdrawn
- 1981-12-17 FI FI814059A patent/FI814059L/en not_active Application Discontinuation
- 1981-12-17 DK DK561581A patent/DK561581A/en not_active Application Discontinuation
- 1981-12-17 ES ES508104A patent/ES508104A0/en active Granted
- 1981-12-17 NO NO814332A patent/NO814332L/en unknown
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5801272A (en) * | 1993-06-01 | 1998-09-01 | Basf Aktiengesellschaft | Preparation of mixtures of (R)- and (S)-2-(4-alkanoylphenoxy)- or (R)- and (S)-2-(4-aroylphenoxy)propionic esters |
WO1999009994A1 (en) * | 1997-08-22 | 1999-03-04 | Bayer Aktiengesellschaft | Use of cycloalcane-phosphonic acid esters for treating mental disorders and depressions |
CN100412078C (en) * | 2004-02-26 | 2008-08-20 | 华中师范大学 | Fluorine substituted phenoxy acetyl oxide alkyl phosphonate ester and salt with weeding active and preparation process thereof |
Also Published As
Publication number | Publication date |
---|---|
ES8302631A1 (en) | 1983-02-01 |
CA1156663A (en) | 1983-11-08 |
EP0054715A2 (en) | 1982-06-30 |
IL64523A0 (en) | 1982-03-31 |
ES508104A0 (en) | 1983-02-01 |
NO814332L (en) | 1982-06-21 |
FI814059L (en) | 1982-06-19 |
EP0054715A3 (en) | 1982-09-22 |
DK561581A (en) | 1982-06-19 |
AU7846381A (en) | 1982-06-24 |
AR230429A1 (en) | 1984-04-30 |
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Legal Events
Date | Code | Title | Description |
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WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |