CN111134128A - 一种含氯虫苯甲酰胺的杀虫剂 - Google Patents
一种含氯虫苯甲酰胺的杀虫剂 Download PDFInfo
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- CN111134128A CN111134128A CN201911392813.9A CN201911392813A CN111134128A CN 111134128 A CN111134128 A CN 111134128A CN 201911392813 A CN201911392813 A CN 201911392813A CN 111134128 A CN111134128 A CN 111134128A
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- Prior art keywords
- reaction
- stirring
- chloro
- chlorantraniliprole
- pyrazole
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- 239000005886 Chlorantraniliprole Substances 0.000 title claims abstract description 49
- PSOVNZZNOMJUBI-UHFFFAOYSA-N chlorantraniliprole Chemical compound CNC(=O)C1=CC(Cl)=CC(C)=C1NC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl PSOVNZZNOMJUBI-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000002917 insecticide Substances 0.000 title claims abstract description 13
- 239000000575 pesticide Substances 0.000 claims abstract description 24
- 239000005917 Methoxyfenozide Substances 0.000 claims abstract description 13
- QCAWEPFNJXQPAN-UHFFFAOYSA-N methoxyfenozide Chemical compound COC1=CC=CC(C(=O)NN(C(=O)C=2C=C(C)C=C(C)C=2)C(C)(C)C)=C1C QCAWEPFNJXQPAN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000005907 Indoxacarb Substances 0.000 claims abstract description 10
- VBCVPMMZEGZULK-NRFANRHFSA-N indoxacarb Chemical compound C([C@@]1(OC2)C(=O)OC)C3=CC(Cl)=CC=C3C1=NN2C(=O)N(C(=O)OC)C1=CC=C(OC(F)(F)F)C=C1 VBCVPMMZEGZULK-NRFANRHFSA-N 0.000 claims abstract description 10
- 238000013329 compounding Methods 0.000 claims abstract description 4
- 239000004480 active ingredient Substances 0.000 claims abstract description 3
- 238000006243 chemical reaction Methods 0.000 claims description 63
- 238000003756 stirring Methods 0.000 claims description 49
- 238000010992 reflux Methods 0.000 claims description 39
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 36
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 36
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 36
- 238000002360 preparation method Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 238000010438 heat treatment Methods 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical class [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 18
- WOBVZGBINMTNKL-UHFFFAOYSA-N 2-amino-5-chloro-n,3-dimethylbenzamide Chemical compound CNC(=O)C1=CC(Cl)=CC(C)=C1N WOBVZGBINMTNKL-UHFFFAOYSA-N 0.000 claims description 16
- FORBXGROTPOMEH-UHFFFAOYSA-N 5-bromo-2-(3-chloropyridin-2-yl)pyrazole-3-carboxylic acid Chemical compound OC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl FORBXGROTPOMEH-UHFFFAOYSA-N 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 15
- 239000012074 organic phase Substances 0.000 claims description 15
- 238000000967 suction filtration Methods 0.000 claims description 15
- 238000003786 synthesis reaction Methods 0.000 claims description 15
- -1 3-chloro-2-pyridyl Chemical group 0.000 claims description 12
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 12
- 238000001816 cooling Methods 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 239000000243 solution Substances 0.000 claims description 10
- XAYCTBDPZIKHCW-UHFFFAOYSA-N (3-chloropyridin-2-yl)hydrazine Chemical compound NNC1=NC=CC=C1Cl XAYCTBDPZIKHCW-UHFFFAOYSA-N 0.000 claims description 9
- FBOWFVWOCBTBPH-UHFFFAOYSA-N 2-amino-n,3-dimethylbenzamide Chemical compound CNC(=O)C1=CC=CC(C)=C1N FBOWFVWOCBTBPH-UHFFFAOYSA-N 0.000 claims description 9
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000002425 crystallisation Methods 0.000 claims description 9
- 230000008025 crystallization Effects 0.000 claims description 9
- GWGIBEMOOVJUPI-UHFFFAOYSA-N ethyl 2-(3-chloropyridin-2-yl)-5-oxopyrazolidine-3-carboxylate Chemical compound CCOC(=O)C1CC(=O)NN1C1=NC=CC=C1Cl GWGIBEMOOVJUPI-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 claims description 6
- MAKFMOSBBNKPMS-UHFFFAOYSA-N 2,3-dichloropyridine Chemical compound ClC1=CC=CN=C1Cl MAKFMOSBBNKPMS-UHFFFAOYSA-N 0.000 claims description 6
- BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 claims description 6
- CHKUQVBJPDLANA-UHFFFAOYSA-N 8-methyl-1h-3,1-benzoxazine-2,4-dione Chemical compound N1C(=O)OC(=O)C2=C1C(C)=CC=C2 CHKUQVBJPDLANA-UHFFFAOYSA-N 0.000 claims description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- GUAZTUMVVYURLC-UHFFFAOYSA-N ethyl 5-bromo-2-(3-chloropyridin-2-yl)-3,4-dihydropyrazole-3-carboxylate Chemical compound CCOC(=O)C1CC(Br)=NN1C1=NC=CC=C1Cl GUAZTUMVVYURLC-UHFFFAOYSA-N 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 claims description 6
- 238000010907 mechanical stirring Methods 0.000 claims description 6
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- WNAJXPYVTFYEST-UHFFFAOYSA-N 2-Amino-3-methylbenzoate Chemical compound CC1=CC=CC(C(O)=O)=C1N WNAJXPYVTFYEST-UHFFFAOYSA-N 0.000 claims description 3
- YMBBVZQIASLVHJ-UHFFFAOYSA-N CC1=CC=CC=2OC3=CC=CC=C3C(C12)C(=O)Cl Chemical compound CC1=CC=CC=2OC3=CC=CC=C3C(C12)C(=O)Cl YMBBVZQIASLVHJ-UHFFFAOYSA-N 0.000 claims description 3
- IEPRKVQEAMIZSS-UHFFFAOYSA-N Di-Et ester-Fumaric acid Natural products CCOC(=O)C=CC(=O)OCC IEPRKVQEAMIZSS-UHFFFAOYSA-N 0.000 claims description 3
- IEPRKVQEAMIZSS-WAYWQWQTSA-N Diethyl maleate Chemical compound CCOC(=O)\C=C/C(=O)OCC IEPRKVQEAMIZSS-WAYWQWQTSA-N 0.000 claims description 3
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 claims description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 3
- 239000012295 chemical reaction liquid Substances 0.000 claims description 3
- 238000009833 condensation Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 claims description 3
- 239000012043 crude product Substances 0.000 claims description 3
- PUSKHXMZPOMNTQ-UHFFFAOYSA-N ethyl 2,1,3-benzoselenadiazole-5-carboxylate Chemical compound CCOC(=O)C1=CC=C2N=[Se]=NC2=C1 PUSKHXMZPOMNTQ-UHFFFAOYSA-N 0.000 claims description 3
- FQMUOIZSRNYHTL-UHFFFAOYSA-N ethyl 5-bromo-2-(3-chloropyridin-2-yl)pyrazole-3-carboxylate Chemical compound CCOC(=O)C1=CC(Br)=NN1C1=NC=CC=C1Cl FQMUOIZSRNYHTL-UHFFFAOYSA-N 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- UXCDUFKZSUBXGM-UHFFFAOYSA-N phosphoric tribromide Chemical compound BrP(Br)(Br)=O UXCDUFKZSUBXGM-UHFFFAOYSA-N 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 claims description 3
- YBBRCQOCSYXUOC-UHFFFAOYSA-N sulfuryl dichloride Chemical compound ClS(Cl)(=O)=O YBBRCQOCSYXUOC-UHFFFAOYSA-N 0.000 claims description 3
- 239000000375 suspending agent Substances 0.000 claims description 3
- 238000003828 vacuum filtration Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 239000004562 water dispersible granule Substances 0.000 claims description 3
- 239000008041 oiling agent Substances 0.000 claims description 2
- 239000004563 wettable powder Substances 0.000 claims description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- 230000000361 pesticidal effect Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 7
- 241000607479 Yersinia pestis Species 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000000749 insecticidal effect Effects 0.000 description 5
- 229940079593 drug Drugs 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- 240000007124 Brassica oleracea Species 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 241000256247 Spodoptera exigua Species 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 2
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 2
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 2
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 2
- 241000255777 Lepidoptera Species 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229940002612 prodrug Drugs 0.000 description 2
- 239000000651 prodrug Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- IBSREHMXUMOFBB-JFUDTMANSA-N 5u8924t11h Chemical compound O1[C@@H](C)[C@H](O)[C@@H](OC)C[C@@H]1O[C@@H]1[C@@H](OC)C[C@H](O[C@@H]2C(=C/C[C@@H]3C[C@@H](C[C@@]4(O3)C=C[C@H](C)[C@@H](C(C)C)O4)OC(=O)[C@@H]3C=C(C)[C@@H](O)[C@H]4OC\C([C@@]34O)=C/C=C/[C@@H]2C)/C)O[C@H]1C.C1=C[C@H](C)[C@@H]([C@@H](C)CC)O[C@]11O[C@H](C\C=C(C)\[C@@H](O[C@@H]2O[C@@H](C)[C@H](O[C@@H]3O[C@@H](C)[C@H](O)[C@@H](OC)C3)[C@@H](OC)C2)[C@@H](C)\C=C\C=C/2[C@]3([C@H](C(=O)O4)C=C(C)[C@@H](O)[C@H]3OC\2)O)C[C@H]4C1 IBSREHMXUMOFBB-JFUDTMANSA-N 0.000 description 1
- 239000005660 Abamectin Substances 0.000 description 1
- 241000134916 Amanita Species 0.000 description 1
- 241000254127 Bemisia tabaci Species 0.000 description 1
- 235000016068 Berberis vulgaris Nutrition 0.000 description 1
- 241000335053 Beta vulgaris Species 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 241000254173 Coleoptera Species 0.000 description 1
- 241000254171 Curculionidae Species 0.000 description 1
- 241000255925 Diptera Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000256259 Noctuidae Species 0.000 description 1
- 231100000674 Phytotoxicity Toxicity 0.000 description 1
- 241000500437 Plutella xylostella Species 0.000 description 1
- 239000005941 Thiamethoxam Substances 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 229950008167 abamectin Drugs 0.000 description 1
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- ZXQYGBMAQZUVMI-UNOMPAQXSA-N cyhalothrin Chemical compound CC1(C)C(\C=C(/Cl)C(F)(F)F)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-UNOMPAQXSA-N 0.000 description 1
- 238000003113 dilution method Methods 0.000 description 1
- 230000000857 drug effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- DNIKXCUKOGVNIO-UHFFFAOYSA-N formaldehyde;phenol;styrene Chemical compound O=C.OC1=CC=CC=C1.C=CC1=CC=CC=C1 DNIKXCUKOGVNIO-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 description 1
- 229920000053 polysorbate 80 Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 210000004894 snout Anatomy 0.000 description 1
- 229940077386 sodium benzenesulfonate Drugs 0.000 description 1
- 229920005552 sodium lignosulfonate Polymers 0.000 description 1
- MZSDGDXXBZSFTG-UHFFFAOYSA-M sodium;benzenesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C1=CC=CC=C1 MZSDGDXXBZSFTG-UHFFFAOYSA-M 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NWWZPOKUUAIXIW-FLIBITNWSA-N thiamethoxam Chemical compound [O-][N+](=O)\N=C/1N(C)COCN\1CC1=CN=C(Cl)S1 NWWZPOKUUAIXIW-FLIBITNWSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
Classifications
-
- 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
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/48—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
- A01N43/56—1,2-Diazoles; Hydrogenated 1,2-diazoles
-
- 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
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
- A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
- A01N37/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/38—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< where at least one nitrogen atom is part of a heterocyclic ring; Thio analogues thereof
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
本发明公开了一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂由氯虫苯甲酰胺、甲氧虫酰肼及茚虫威为有效成分复配而成,其中,按质量比计氯虫苯甲酰胺:甲氧虫酰肼:茚虫威=2:1:1;该杀虫剂增效作用显著,杀虫效果好,成本低廉。
Description
技术领域
本发明涉及一种杀虫剂,具体涉及一种含氯虫苯甲酰胺的杀虫剂。
背景技术
氯虫苯甲酰胺高效广谱,对鳞翅目的夜蛾科、螟蛾科、蛀果蛾科、卷叶蛾科、粉蛾科、菜蛾科、麦蛾科、细蛾科等均有很好的控制效果,还能控制鞘翅目象甲科,叶甲科;双翅目潜蝇科;烟粉虱等多种非鳞翅目害虫。
但含有一种活性组份的杀虫剂对农业害虫的防治,往往因连续使用,害虫容易产生抗药性,用药次数多,造成对环境的污染加重等。本发明的优点和积极效果是将多种不同结构、作用机理的农药进行复配,是防治抗性害虫、扩大杀虫谱和提高药效的有效途径,更重要的是避免或延缓害虫对新成份氯虫苯甲酰胺抗性的产生。
发明内容
本发明所要解决的技术问题是,针对以上现有技术存在的缺点,提出一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂增效作用显著,杀虫效果好,成本低廉。
本发明解决以上技术问题的技术方案是:
一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂由氯虫苯甲酰胺、甲氧虫酰肼及茚虫威为有效成分复配而成,其中,按质量比计氯虫苯甲酰胺:甲氧虫酰肼:茚虫威=2:1:1。
本发明进一步限定的技术方案为:
前述含氯虫苯甲酰胺的杀虫剂中,氯虫苯甲酰胺的制备包括以下合成步骤:
(1)3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的合成;
(2)2-氨基-5-氯-N,3-二甲基苯甲酰胺的合成
(3)氯虫苯甲酰胺的合成,其中:
步骤(1)中3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸具体合成步骤为:
a.2-肼基-3-氯吡啶的制备
将2,3-二氯吡啶和无水乙醇加入到带有机械搅拌、温度计和回流冷凝固的反应瓶中,充分搅拌至固体溶解,后加入80%的水合肼,缓慢加热至回流,回流反应25-30h,反应结束冷却至室温,过滤,滤饼用水洗涤,烘干后得到2-肼基-3-氯吡啶;
其中2,3-二氯吡啶、无水乙醇和水合肼的质量比为1:1.2-1.3:2.5-3.0;
b.2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯的制备
在装有温度计、回流冷凝管和机械搅拌的三口瓶中加入乙醇钠和无水乙醇,然后加入3-氯-2-肼基吡啶,搅拌20-25min,缓慢滴加马来酸二乙酯,升温至回流,回流反应3-4h,反应结束后降温至室温,加入醋酸调节PH=6-7,滴加水有固体析出,在0-5℃搅拌析晶1-2h,抽滤,得到2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯;
c.3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯的制备
在装有机械搅拌、温度计和回流冷凝器的三口瓶中,加入2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯,乙腈和三溴氧磷,加热至回流,回流反应2-3h,减压除去乙腈,将水加入反应瓶中,充分搅拌,再加入饱和氢氧化钠调节PH=8-9,用乙酸乙酯萃取,收集有机相,用无水硫酸钠干燥,过滤,减压浓缩得到3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯;
d.3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯的制备
在装有搅拌器、温度计、冷凝装置的反应瓶中加入乙腈和3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯,搅拌下滴加浓硫酸,搅拌20-30min后加入过硫酸钾,加热至回流反应2-3h,反应结束冷却至5-10℃,搅拌析晶1-2h,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯;
其中3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯、过硫酸钾和浓硫酸的质量比为1:1.2-1.3:0.2-0.3;
e.3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的制备
在装有搅拌、温度计的反应瓶中加入3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯和甲醇,在25-30℃充分搅拌20-30min,在滴加1mol/L的氢氧化钠溶液,滴毕反应3-4h,反应结束后升温减压除去甲醇和水的共沸物,再加入水和乙酸乙酯萃取,弃去有几层,水层用浓盐酸调节PH=4-5,有大量固体析出,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸;
步骤(2)中2-氨基-5-氯-N,3-二甲基苯甲酰胺具体合成步骤为:
1)8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮的制备
将2-氨基-3-甲基苯甲酸、四氢呋喃、吡啶加入到装有机械搅拌、温度计和回流冷凝器的反应瓶中,降温至0-5℃,然后分批加入固体光气,自然升温至室温,搅拌反应4-5h,反应结束减压除去四氢呋喃,再加入乙酸乙酯搅拌析晶30-40min,抽滤,得到8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮;
2)2-氨基-N,3-二甲基苯甲酰胺的制备
将乙酸乙酯、8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮加入到带有机械搅拌、温度计和回流冷凝器的反应瓶中,滴加甲胺溶液,滴毕控制温度30-35℃反应1-2h,反应完全后将反应液静置分层,收集有机相,减压除去有机相得到2-氨基-N,3-二甲基苯甲酰胺;
3)2-氨基-5-氯-N,3-二甲基苯甲酰胺的制备
将二氯甲烷、2-氨基-N,3-二甲基苯甲酰胺加入到带有机械搅拌、温度计和回流冷凝管的反应瓶中,在0-5℃下滴加硫酰氯,滴毕升温至30℃搅拌反应2-3h,反应完全后冰浴控温5℃以下滴加1mol/L的氢氧化钠溶液,调节PH=8-9,收集有机相,减压浓缩有机相得到2-氨基-5-氯-N,3-二甲基苯甲酰胺;
步骤(3)中氯虫苯甲酰胺合成步骤为:
将上述步骤(1)合成的3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸和上述步骤(2)合成的2-氨基-5-氯-N,3-二甲基苯甲酰胺、2-甲基吡啶和乙腈加入到装有机械搅拌、温度计和冷凝器的反应瓶中,在0-3℃下滴加甲基黄酰氯,滴毕在0-5℃下反应2-3h,反应结束后自然升至室温,搅拌反应2-3h,倒入水,搅拌析晶0-5h,抽滤得到氯虫苯甲酰胺粗品;
将上述氯虫苯甲酰胺粗品加入到反应瓶中,加入溶剂二甲基甲酰胺,搅拌直至完全溶解,在20-25℃下滴加甲醇和水的混合溶液,滴加完毕后在转速90-100rpm,结晶温度20℃,搅拌析晶4-5h,析晶结束后将固液混合物真空抽滤得到最后的成品氯虫苯甲酰胺;
其中甲醇和水体积比为1:0.15-0.12。
前述含氯虫苯甲酰胺的杀虫剂中,杀虫剂制成可湿性粉剂、可溶性液剂、水分散粒剂、乳油或悬浮剂。
本发明的有益效果是:
本发明组分合理,杀虫效果好,用药成本低,且其活性和杀虫效果不是各组分活性的简单叠加,而是有显著的增效作用,对作物安全性好,符合农药制剂的安全性要求。
长期使用单一类型的杀虫剂容易导致害虫产生抗药性。因此,有必要采用农药复配技术,把不同作用机制的药剂进行合理复配,一方面可以提高防治效果,减少用药量、降低防治成本,减少农药污染;另一方面还可以延缓害虫耐药性和抗药性的发生与发展的速度,延长药剂使用寿命。目前,氯虫苯甲酰胺的复配药剂不多,主要是与阿维菌素、噻虫嗪和高效氯氟氰菊酯等3种药剂复配,本发明氯虫苯甲酰胺与甲氧虫酰肼及茚虫威复配延长上述3种药剂的使用寿命,杀虫效果更佳。
具体实施方式
实施例1
本实施例提供一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂由氯虫苯甲酰胺20g、甲氧虫酰肼10g及茚虫威10g,丙酮40g,甲苯20g,搅拌混合,加入吐温-205g,甲苯补足100g,配置成乳油。
实施例2
本实施例提供一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂由氯虫苯甲酰胺30g、甲氧虫酰肼15g及茚虫威15g,木质素磺酸钠3g,苯乙烯苯酚甲醛树脂聚氧乙烯醚5g,BY1403g,黄原胶0.2g,硅酸镁铝0.1g,辛醇5g,用水补到100g,均匀混合后投入砂磨机,研磨至粒径5微米以下,制成悬浮剂。
实施例3
本实施例提供一种含氯虫苯甲酰胺的杀虫剂,该杀虫剂由氯虫苯甲酰胺20g、甲氧虫酰肼10g及茚虫威10g,甲基脂肪酰胺苯磺酸钠6g,硫酸铵5g,白炭黑19g,聚乙二醇2g,轻质钙补至100g,经超微气流粉碎机粉碎至粒径5μm,得母粉,将母粉与聚乙二醇水溶液充分混合后造粒、烘干、过筛,从而制得水分散性粒剂。
实施例1-3中氯虫苯甲酰胺的制备包括以下合成步骤:
(1)3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的合成;
(2)2-氨基-5-氯-N,3-二甲基苯甲酰胺的合成
(3)氯虫苯甲酰胺的合成,其中:
步骤(1)中3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸具体合成步骤为:
a.2-肼基-3-氯吡啶的制备
将2,3-二氯吡啶和无水乙醇加入到带有机械搅拌、温度计和回流冷凝固的反应瓶中,充分搅拌至固体溶解,后加入80%的水合肼,缓慢加热至回流,回流反应25-30h,反应结束冷却至室温,过滤,滤饼用水洗涤,烘干后得到2-肼基-3-氯吡啶;
其中2,3-二氯吡啶、无水乙醇和水合肼的质量比为1:1.2-1.3:2.5-3.0;
b.2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯的制备
在装有温度计、回流冷凝管和机械搅拌的三口瓶中加入乙醇钠和无水乙醇,然后加入3-氯-2-肼基吡啶,搅拌20-25min,缓慢滴加马来酸二乙酯,升温至回流,回流反应3-4h,反应结束后降温至室温,加入醋酸调节PH=6-7,滴加水有固体析出,在0-5℃搅拌析晶1-2h,抽滤,得到2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯;
c.3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯的制备
在装有机械搅拌、温度计和回流冷凝器的三口瓶中,加入2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯,乙腈和三溴氧磷,加热至回流,回流反应2-3h,减压除去乙腈,将水加入反应瓶中,充分搅拌,再加入饱和氢氧化钠调节PH=8-9,用乙酸乙酯萃取,收集有机相,用无水硫酸钠干燥,过滤,减压浓缩得到3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯;
d.3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯的制备
在装有搅拌器、温度计、冷凝装置的反应瓶中加入乙腈和3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯,搅拌下滴加浓硫酸,搅拌20-30min后加入过硫酸钾,加热至回流反应2-3h,反应结束冷却至5-10℃,搅拌析晶1-2h,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯;
其中3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯、过硫酸钾和浓硫酸的质量比为1:1.2-1.3:0.2-0.3;
e.3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的制备
在装有搅拌、温度计的反应瓶中加入3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯和甲醇,在25-30℃充分搅拌20-30min,在滴加1mol/L的氢氧化钠溶液,滴毕反应3-4h,反应结束后升温减压除去甲醇和水的共沸物,再加入水和乙酸乙酯萃取,弃去有几层,水层用浓盐酸调节PH=4-5,有大量固体析出,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸;
步骤(2)中2-氨基-5-氯-N,3-二甲基苯甲酰胺具体合成步骤为:
1)8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮的制备
将2-氨基-3-甲基苯甲酸、四氢呋喃、吡啶加入到装有机械搅拌、温度计和回流冷凝器的反应瓶中,降温至0-5℃,然后分批加入固体光气,自然升温至室温,搅拌反应4-5h,反应结束减压除去四氢呋喃,再加入乙酸乙酯搅拌析晶30-40min,抽滤,得到8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮;
2)2-氨基-N,3-二甲基苯甲酰胺的制备
将乙酸乙酯、8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮加入到带有机械搅拌、温度计和回流冷凝器的反应瓶中,滴加甲胺溶液,滴毕控制温度30-35℃反应1-2h,反应完全后将反应液静置分层,收集有机相,减压除去有机相得到2-氨基-N,3-二甲基苯甲酰胺;
3)2-氨基-5-氯-N,3-二甲基苯甲酰胺的制备
将二氯甲烷、2-氨基-N,3-二甲基苯甲酰胺加入到带有机械搅拌、温度计和回流冷凝管的反应瓶中,在0-5℃下滴加硫酰氯,滴毕升温至30℃搅拌反应2-3h,反应完全后冰浴控温5℃以下滴加1mol/L的氢氧化钠溶液,调节PH=8-9,收集有机相,减压浓缩有机相得到2-氨基-5-氯-N,3-二甲基苯甲酰胺;
步骤(3)中氯虫苯甲酰胺合成步骤为:
将上述步骤(1)合成的3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸和上述步骤(2)合成的2-氨基-5-氯-N,3-二甲基苯甲酰胺、2-甲基吡啶和乙腈加入到装有机械搅拌、温度计和冷凝器的反应瓶中,在0-3℃下滴加甲基黄酰氯,滴毕在0-5℃下反应2-3h,反应结束后自然升至室温,搅拌反应2-3h,倒入水,搅拌析晶0-5h,抽滤得到氯虫苯甲酰胺粗品;
将上述氯虫苯甲酰胺粗品加入到反应瓶中,加入溶剂二甲基甲酰胺,搅拌直至完全溶解,在20-25℃下滴加甲醇和水的混合溶液,滴加完毕后在转速90-100rpm,结晶温度20℃,搅拌析晶4-5h,析晶结束后将固液混合物真空抽滤得到最后的成品氯虫苯甲酰胺;
其中甲醇和水体积比为1:0.15-0.12。
以实施例1制备的含氯虫苯甲酰胺的杀虫剂,以及95%甲氧虫酰肼原药(南京南农农药科技发展有限公司),95.3%氯虫苯甲酰胺原药(上海杜邦农化有限公司)进行药效试验。(95%甲氧虫酰肼原药、95.3%氯虫苯甲酰胺原药用0.1%的吐温-80水溶液稀释成所需浓度备用)
试验于2018年9月分别在甜菜夜蛾发生较重的盐城市大丰的甘蓝地进行。试验按《田间药效试验准则(一)杀虫剂防治十字花科蔬菜的鳞翅目幼虫》(GB/T17980.13—2000)的要求执行,各试验药剂、对照药剂小区处理采用随机区组排列,每小区面积30m2,每处理重复4次。所有药剂均按二次稀释法配制药液,药液用量为30L/667m2。使用卫士牌WS-16P背负式手动喷雾器均匀喷雾1次,施药时甜菜夜蛾幼虫以2-3龄为主。采用定点定株调查,每小区调查5点,每点2株,共调查10株。施药前和施药后1、3、10d各调查1次,统计各处理的活虫数,同时观察记录甘蓝植株的药害情况,具体见表1;
表1防治甜菜夜蛾田间药效试验结果
由表1可见,本实施例的产品均明显高于对照药剂95%甲氧虫酰肼原药,95.3%氯虫苯甲酰胺原药的防效,且对甘蓝安全。因此,本发明的产品可以作为防治甜菜夜蛾的有效药剂。
除上述实施例外,本发明还可以有其他实施方式。凡采用等同替换或等效变换形成的技术方案,均落在本发明要求的保护范围。
Claims (3)
1.一种含氯虫苯甲酰胺的杀虫剂,其特征在于:该杀虫剂由氯虫苯甲酰胺、甲氧虫酰肼及茚虫威为有效成分复配而成,其中,按质量比计氯虫苯甲酰胺:甲氧虫酰肼:茚虫威=2:1:1。
2.根据权利要求1所述的含氯虫苯甲酰胺的杀虫剂,其特征在于:所述氯虫苯甲酰胺的制备包括以下合成步骤:
(1)3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的合成;
(2)2-氨基-5-氯-N,3-二甲基苯甲酰胺的合成
(3)氯虫苯甲酰胺的合成,其中:
步骤(1)中所述的3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸具体合成步骤为:
a.2-肼基-3-氯吡啶的制备
将2,3-二氯吡啶和无水乙醇加入到带有机械搅拌、温度计和回流冷凝固的反应瓶中,充分搅拌至固体溶解,后加入80%的水合肼,缓慢加热至回流,回流反应25-30h,反应结束冷却至室温,过滤,滤饼用水洗涤,烘干后得到2-肼基-3-氯吡啶;
其中所述的2,3-二氯吡啶、无水乙醇和水合肼的质量比为1:1.2-1.3:2.5-3.0;
b.2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯的制备
在装有温度计、回流冷凝管和机械搅拌的三口瓶中加入乙醇钠和无水乙醇,然后加入3-氯-2-肼基吡啶,搅拌20-25min,缓慢滴加马来酸二乙酯,升温至回流,回流反应3-4h,反应结束后降温至室温,加入醋酸调节PH=6-7,滴加水有固体析出,在0-5℃搅拌析晶1-2h,抽滤,得到2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯;
c.3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯的制备
在装有机械搅拌、温度计和回流冷凝器的三口瓶中,加入2-(3-氯-2-吡啶基)-5-氧代-3-吡唑烷甲酸乙酯,乙腈和三溴氧磷,加热至回流,回流反应2-3h,减压除去乙腈,将水加入反应瓶中,充分搅拌,再加入饱和氢氧化钠调节PH=8-9,用乙酸乙酯萃取,收集有机相,用无水硫酸钠干燥,过滤,减压浓缩得到3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯;
d.3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯的制备
在装有搅拌器、温度计、冷凝装置的反应瓶中加入乙腈和3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯,搅拌下滴加浓硫酸,搅拌20-30min后加入过硫酸钾,加热至回流反应2-3h,反应结束冷却至5-10℃,搅拌析晶1-2h,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯;
其中所述的3-溴-1-(3-氯-2-吡啶基)-4,5-二氢-1H-吡唑-5-甲酸乙酯、过硫酸钾和浓硫酸的质量比为1:1.2-1.3:0.2-0.3;
e. 3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸的制备
在装有搅拌、温度计的反应瓶中加入3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸乙酯和甲醇,在25-30℃充分搅拌20-30min,在滴加1mol/L的氢氧化钠溶液,滴毕反应3-4h,反应结束后升温减压除去甲醇和水的共沸物,再加入水和乙酸乙酯萃取,弃去有几层,水层用浓盐酸调节PH=4-5,有大量固体析出,抽滤得到3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸;
步骤(2)中所述的2-氨基-5-氯-N,3-二甲基苯甲酰胺具体合成步骤为:
1)8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮的制备
将2-氨基-3-甲基苯甲酸、四氢呋喃、吡啶加入到装有机械搅拌、温度计和回流冷凝器的反应瓶中,降温至0-5℃,然后分批加入固体光气,自然升温至室温,搅拌反应4-5h,反应结束减压除去四氢呋喃,再加入乙酸乙酯搅拌析晶30-40min,抽滤,得到8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮;
2)2-氨基-N,3-二甲基苯甲酰胺的制备
将乙酸乙酯、8-甲基-2H-3,1-苯并噁嗪-2,4(1H)-二酮加入到带有机械搅拌、温度计和回流冷凝器的反应瓶中,滴加甲胺溶液,滴毕控制温度30-35℃反应1-2h,反应完全后将反应液静置分层,收集有机相,减压除去有机相得到2-氨基-N,3-二甲基苯甲酰胺;
3) 2-氨基-5-氯-N,3-二甲基苯甲酰胺的制备
将二氯甲烷、2-氨基-N,3-二甲基苯甲酰胺加入到带有机械搅拌、温度计和回流冷凝管的反应瓶中,在0-5℃下滴加硫酰氯,滴毕升温至30℃搅拌反应2-3h,反应完全后冰浴控温5℃以下滴加1mol/L的氢氧化钠溶液,调节PH=8-9,收集有机相,减压浓缩有机相得到2-氨基-5-氯-N,3-二甲基苯甲酰胺;
步骤(3)中所述的氯虫苯甲酰胺合成步骤为:
将上述步骤(1)合成的3-溴-1-(3-氯吡啶-2-基)-1H-吡唑-5-甲酸和上述步骤(2)合成的2-氨基-5-氯-N,3-二甲基苯甲酰胺、2-甲基吡啶和乙腈加入到装有机械搅拌、温度计和冷凝器的反应瓶中,在0-3℃下滴加甲基黄酰氯,滴毕在0-5℃下反应2-3h,反应结束后自然升至室温,搅拌反应2-3h,倒入水,搅拌析晶0-5h,抽滤得到氯虫苯甲酰胺粗品;
将上述氯虫苯甲酰胺粗品加入到反应瓶中,加入溶剂二甲基甲酰胺,搅拌直至完全溶解,在20-25℃下滴加甲醇和水的混合溶液,滴加完毕后在转速90-100rpm,结晶温度20℃,搅拌析晶4-5h,析晶结束后将固液混合物真空抽滤得到最后的成品氯虫苯甲酰胺;
其中所述甲醇和水体积比为1:0.15-0.12。
3.根据权利要求2所述的含氯虫苯甲酰胺的杀虫剂,其特征在于:所述的杀虫剂制成可湿性粉剂、可溶性液剂、水分散粒剂、乳油或悬浮剂。
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