CN114716429B - 一种砜吡草唑的合成方法 - Google Patents
一种砜吡草唑的合成方法 Download PDFInfo
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- CN114716429B CN114716429B CN202210571879.XA CN202210571879A CN114716429B CN 114716429 B CN114716429 B CN 114716429B CN 202210571879 A CN202210571879 A CN 202210571879A CN 114716429 B CN114716429 B CN 114716429B
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- 238000001308 synthesis method Methods 0.000 title claims abstract description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 56
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 25
- 239000011831 acidic ionic liquid Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000002608 ionic liquid Substances 0.000 claims description 36
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 9
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- XTHPWXDJESJLNJ-UHFFFAOYSA-N chlorosulfonic acid Substances OS(Cl)(=O)=O XTHPWXDJESJLNJ-UHFFFAOYSA-N 0.000 claims description 9
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 9
- 238000003786 synthesis reaction Methods 0.000 claims description 9
- HTSGKJQDMSTCGS-UHFFFAOYSA-N 1,4-bis(4-chlorophenyl)-2-(4-methylphenyl)sulfonylbutane-1,4-dione Chemical compound C1=CC(C)=CC=C1S(=O)(=O)C(C(=O)C=1C=CC(Cl)=CC=1)CC(=O)C1=CC=C(Cl)C=C1 HTSGKJQDMSTCGS-UHFFFAOYSA-N 0.000 claims description 8
- 229940125904 compound 1 Drugs 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 8
- 125000001188 haloalkyl group Chemical group 0.000 claims description 7
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 7
- 239000000047 product Substances 0.000 claims description 7
- KEQGZUUPPQEDPF-UHFFFAOYSA-N 1,3-dichloro-5,5-dimethylimidazolidine-2,4-dione Chemical compound CC1(C)N(Cl)C(=O)N(Cl)C1=O KEQGZUUPPQEDPF-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 4
- 239000000706 filtrate Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 claims description 3
- 235000019345 sodium thiosulphate Nutrition 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 2
- 239000005592 Penoxsulam Substances 0.000 claims description 2
- SYJGKVOENHZYMQ-UHFFFAOYSA-N Penoxsulam Chemical compound N1=C2C(OC)=CN=C(OC)N2N=C1NS(=O)(=O)C1=C(OCC(F)F)C=CC=C1C(F)(F)F SYJGKVOENHZYMQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 238000010189 synthetic method Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 12
- 230000035484 reaction time Effects 0.000 abstract description 3
- 125000000217 alkyl group Chemical group 0.000 description 19
- 230000001590 oxidative effect Effects 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 10
- 150000003568 thioethers Chemical class 0.000 description 10
- 239000007800 oxidant agent Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000005779 Fenpyrazamine Substances 0.000 description 5
- UTOHZQYBSYOOGC-UHFFFAOYSA-N fenpyrazamine Chemical compound O=C1N(C(C)C)N(C(=O)SCC=C)C(N)=C1C1=CC=CC=C1C UTOHZQYBSYOOGC-UHFFFAOYSA-N 0.000 description 5
- -1 -isopentyl Chemical group 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 125000003282 alkyl amino group Chemical group 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 150000003462 sulfoxides Chemical class 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 239000005580 Metazachlor Substances 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 125000003342 alkenyl group Chemical group 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- STEPQTYSZVCJPV-UHFFFAOYSA-N metazachlor Chemical compound CC1=CC=CC(C)=C1N(C(=O)CCl)CN1N=CC=C1 STEPQTYSZVCJPV-UHFFFAOYSA-N 0.000 description 3
- 238000006467 substitution reaction Methods 0.000 description 3
- 125000006552 (C3-C8) cycloalkyl group Chemical group 0.000 description 2
- OVXMBIVWNJDDSM-UHFFFAOYSA-N (benzhydrylideneamino) 2,6-bis[(4,6-dimethoxypyrimidin-2-yl)oxy]benzoate Chemical compound COC1=CC(OC)=NC(OC=2C(=C(OC=3N=C(OC)C=C(OC)N=3)C=CC=2)C(=O)ON=C(C=2C=CC=CC=2)C=2C=CC=CC=2)=N1 OVXMBIVWNJDDSM-UHFFFAOYSA-N 0.000 description 2
- MCTWTZJPVLRJOU-UHFFFAOYSA-N 1-methyl-1H-imidazole Chemical compound CN1C=CN=C1 MCTWTZJPVLRJOU-UHFFFAOYSA-N 0.000 description 2
- LULAYUGMBFYYEX-UHFFFAOYSA-N 3-chlorobenzoic acid Chemical compound OC(=O)C1=CC=CC(Cl)=C1 LULAYUGMBFYYEX-UHFFFAOYSA-N 0.000 description 2
- 125000004650 C1-C8 alkynyl group Chemical group 0.000 description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical compound [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 description 2
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Natural products CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 2
- 125000004448 alkyl carbonyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- HHLFWLYXYJOTON-UHFFFAOYSA-N glyoxylic acid Chemical compound OC(=O)C=O HHLFWLYXYJOTON-UHFFFAOYSA-N 0.000 description 2
- 125000000262 haloalkenyl group Chemical group 0.000 description 2
- 125000004438 haloalkoxy group Chemical group 0.000 description 2
- 125000000232 haloalkynyl group Chemical group 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 125000001072 heteroaryl group Chemical group 0.000 description 2
- 239000011964 heteropoly acid Substances 0.000 description 2
- 238000004811 liquid chromatography Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- MFSWTRQUCLNFOM-UHFFFAOYSA-N methyl 2-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]oxy}phenoxy)propanoate Chemical group C1=CC(OC(C)C(=O)OC)=CC=C1OC1=NC=C(C(F)(F)F)C=C1Cl MFSWTRQUCLNFOM-UHFFFAOYSA-N 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- XMVONEAAOPAGAO-UHFFFAOYSA-N sodium tungstate Chemical compound [Na+].[Na+].[O-][W]([O-])(=O)=O XMVONEAAOPAGAO-UHFFFAOYSA-N 0.000 description 2
- 150000003457 sulfones Chemical class 0.000 description 2
- GBXQPDCOMJJCMJ-UHFFFAOYSA-M trimethyl-[6-(trimethylazaniumyl)hexyl]azanium;bromide Chemical compound [Br-].C[N+](C)(C)CCCCCC[N+](C)(C)C GBXQPDCOMJJCMJ-UHFFFAOYSA-M 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 description 1
- HNEGJTWNOOWEMH-UHFFFAOYSA-N 1-fluoropropane Chemical group [CH2]CCF HNEGJTWNOOWEMH-UHFFFAOYSA-N 0.000 description 1
- SZIFAVKTNFCBPC-UHFFFAOYSA-N 2-chloroethanol Chemical compound OCCCl SZIFAVKTNFCBPC-UHFFFAOYSA-N 0.000 description 1
- 125000004777 2-fluoroethyl group Chemical group [H]C([H])(F)C([H])([H])* 0.000 description 1
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
- 125000004493 2-methylbut-1-yl group Chemical group CC(C*)CC 0.000 description 1
- 125000003229 2-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 125000005916 2-methylpentyl group Chemical group 0.000 description 1
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 1
- NHQDETIJWKXCTC-UHFFFAOYSA-N 3-chloroperbenzoic acid Chemical compound OOC(=O)C1=CC=CC(Cl)=C1 NHQDETIJWKXCTC-UHFFFAOYSA-N 0.000 description 1
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 1
- 125000003469 3-methylhexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000005917 3-methylpentyl group Chemical group 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- WTKZEGDFNFYCGP-UHFFFAOYSA-N Pyrazole Chemical compound C=1C=NNC=1 WTKZEGDFNFYCGP-UHFFFAOYSA-N 0.000 description 1
- 241000231139 Pyricularia Species 0.000 description 1
- KJADKKWYZYXHBB-XBWDGYHZSA-N Topiramic acid Chemical compound C1O[C@@]2(COS(N)(=O)=O)OC(C)(C)O[C@H]2[C@@H]2OC(C)(C)O[C@@H]21 KJADKKWYZYXHBB-XBWDGYHZSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 125000002877 alkyl aryl group Chemical group 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- QXAITBQSYVNQDR-ZIOPAAQOSA-N amitraz Chemical compound C=1C=C(C)C=C(C)C=1/N=C/N(C)\C=N\C1=CC=C(C)C=C1C QXAITBQSYVNQDR-ZIOPAAQOSA-N 0.000 description 1
- 229960002587 amitraz Drugs 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
- 125000001246 bromo group Chemical group Br* 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 125000000753 cycloalkyl group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 description 1
- 125000005048 dihydroisoxazolyl group Chemical group O1N(CC=C1)* 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000004216 fluoromethyl group Chemical group [H]C([H])(F)* 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000002363 herbicidal effect Effects 0.000 description 1
- 125000000623 heterocyclic group Chemical group 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 125000002346 iodo group Chemical group I* 0.000 description 1
- 125000004491 isohexyl group Chemical group C(CCC(C)C)* 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
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002923 oximes Chemical class 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- RMBAVIFYHOYIFM-UHFFFAOYSA-M sodium methanethiolate Chemical group [Na+].[S-]C RMBAVIFYHOYIFM-UHFFFAOYSA-M 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 125000000547 substituted alkyl group Chemical group 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 229960004394 topiramate Drugs 0.000 description 1
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
- B01J31/0278—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre
- B01J31/0281—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre the nitrogen being a ring member
- B01J31/0284—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre the nitrogen being a ring member of an aromatic ring, e.g. pyridinium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
- B01J31/0278—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre
- B01J31/0285—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature containing nitrogen as cationic centre also containing elements or functional groups covered by B01J31/0201 - B01J31/0274
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0277—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature
- B01J31/0298—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides comprising ionic liquids, as components in catalyst systems or catalysts per se, the ionic liquid compounds being used in the molten state at the respective reaction temperature the ionic liquids being characterised by the counter-anions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/70—Oxidation reactions, e.g. epoxidation, (di)hydroxylation, dehydrogenation and analogues
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
本发明提供了一种砜吡草唑的合成方法,本发明采用功能化的酸性离子液体来提高双氧水的氧化能力,进而可以高收率、高纯度地制得砜吡草唑,并且反应仅需在常温下进行,可以缩短反应时间至2‑3个小时。
Description
技术领域
本发明涉及除草剂技术领域,尤其是涉及砜吡草唑的合成方法。
背景技术
砜吡草唑是日本组合化学和日本庵原化学公司开发的一种可用于大多数作物田的芽前土壤处理除草剂。其作用机制是被杂草幼根与幼芽吸收之后,破坏幼苗分生组织与胚芽鞘,是植物体内VLCFA(超长侧链脂肪酸)生物合成的潜在抑制剂,抑制幼苗早期生长。它具有广谱、高效和环境友好等特点,受到了广泛关注。
目前,国内对砜吡草唑合成研究的专利文献比较少。报道的合成方法中主要策略是先合成吡唑环中间体和二氢异恶唑环中间体,然后将两个杂环进行对接成硫醚化合物,最后氧化硫醚得到目标产物。现有技术公开的制备方法,最终都需要将硫脒类中间体进行氧化,制得砜吡草唑。
在专利文献(WO2007071900A1)公开了一种制备砜吡草唑的方法。该方法以乙醛酸为起始原料,经过成肟、[3+2]环化、甲硫醇钠取代氧化、还原、与吡唑中间体取代对接、氧化硫醚得到砜吡草唑。反应通式如下:
专利文献(CN113754647A)对上述合成步骤进行了改进,将中间体5,5-二甲基-4,5-二氢异恶唑硫脒盐酸盐替换为S-(5,5-二甲基-4,5-二氢异恶唑-3-基)乙硫酸乙酯。最后一步氧化步骤直接以双氧水作为氧化剂,氧化步骤的收率为83.5%.
专利文献(CN113831333A)公开了在双氧化和催化剂存在下,对硫醚进行氧化,所述的催化剂为钨酸钠、钼酸铵中的一种。其制得的砜吡草唑的含量可达98.5%,收率为95.0%以上。专利文献(CN111393427A)利用钨酸钠作为催化剂,可以稳定和加强双氧水的氧化性,可以直接将硫醚进行加氧氧化成砜,避免副反应亚砜的产生和使用间氯过氧苯甲酸作为氧化剂产生副产物间氯苯甲酸,并且溶剂可以回收套用,最后产物不进行重结晶也可以得到含量大于99%的产物。然而上述方法的反应时间较长,需要8-10小时,且催化剂难以分离回收利于,不利于工业化生产。
Nakatani, Masao等(Journal of Pesticide Science (Tokyo, Japan) (2016),41(4),133-144)报道了以mCPBA代替双氧水作为氧化剂,将硫醚化合物氧化为砜吡草唑。然而mCPBA相对于双氧水价格更为昂贵,且不利于环保。
因此,为了克服现有技术中合成砜吡草唑存在的成本高昂、制备过程三废多、产率和纯度不高的技术问题。开发新的砜吡草唑的合成方法十分必要。
发明内容
本发明的目的在于提供一种砜吡草唑的合成方法,以解决现有技术中存在的成本高昂、制备过程三废多、产率和纯度不高的技术问题。
在砜吡草唑的合成工艺中,虽然有报道利用双氧水对硫醚化合物进行氧化,制得砜吡草唑,然而由于硫醚的氧化过程中,如果氧化剂的氧化能力不足,容易生成大量的亚砜副产物。现有技术中为了解决这一技术问题,大多是利用杂多酸作为催化剂,或者利用氧化能力更强的氧化剂(如mCPBA)代替双氧水。然而尚未有报道直接利用离子液体催化双氧水的反应。本发明首次发现了可采用功能化的酸性离子液体来提高双氧水的氧化能力,并且由于离子液体本身易于回收,可大量节约生产成本。
本发明提供一种砜吡草唑的合成方法,包括如下步骤:
在酸性离子液体存在下,使中间体II与双氧水发生氧化反应,制得产物I,即砜吡草唑,反应式如下:
。
优选地,所述酸性离子液体的结构式如下:
其中:R1选自:C1-C8烷基、C1-C8卤代烷基、C1-C8烯基、C1-C8卤代烯基、C1-C8炔基、C1-C8卤代炔基、C1-C8烷氧基、C1-C8卤代烷氧基、C1-C8烷基羰基、单-C1-C8烷基氨基C1-C8烷基、二-C1-C8烷基氨基C1-C8烷基、C6-C10芳基、C3-C10杂芳基、C3-C8环烷基、C6-C10芳基-C1-C8烷基;
R2、R3、R4各自独立地选自如下基团:氢、C1-C8烷基、C1-C8卤代烷基、C1-C8烯基、C1-C8卤代烯基、C1-C8炔基、C1-C8卤代炔基、C1-C8烷氧基、C1-C8卤代烷氧基、C1-C8烷基羰基、单-C1-C8烷基氨基C1-C8烷基、二-C1-C8烷基氨基C1-C8烷基、C6-C10芳基、C3-C10杂芳基、C3-C8环烷基、C6-C10芳基-C1-C8烷基;
n选自0-6的整数。
优选地,R1选自:C1-C6烷基、C1-C6卤代烷基;
R2、R3、R4各自独立地选自如下基团:氢、C1-C6烷基、C1-C6卤代烷基;
n选自1、2或3。
更优选地,所述酸性离子液体的结构式如下:
。
在另一实施例中,本发明所述的砜吡草唑的合成方法包括如下步骤:在反应器中加入溶剂,再加入化合物II,搅拌溶解后,加入酸性离子液体,然后滴加双氧水,在搅拌条件下进行氧化反应。反应结束之后,向体系中滴加硫代硫酸钠水溶液淬灭过量的双氧水,过滤,干燥,得到白色固体砜吡草唑I。
在另一实施例中,所述溶剂优选为甲醇、乙醇、二氯甲烷和二氯乙烷中的一种或几种;
在另一实施例中,所述双氧水的质量浓度优选为1~45%,更优选为10~40%,最优选为20~30%。
在另一实施例中,所述酸性离子液体与化合物II的摩尔比优选为1:(1~100),更优选为1:(20~80),最优选为1:(30~60),具体的,在本发明的实施例中,可以是1:50;
在另一实施例中,所述化合物II与双氧水的摩尔比优选为1:(1~10),更优选为1:(4~8)。
在另一实施例中,所述氧化反应的温度优选为-20~100℃,更优选为-10~80℃,最优选为0~70℃,具体的,在本发明的实施例中,可以是20-30℃。
在另一实施例中,所述氧化反应的时间优选为1~12小时,更优选为2-5小时,最优选为2-3小时。
在本申请的另一个实施例中还提供了所述离子液体的制备方法,其特征在于包括如下反应步骤:
。
其中R1、R2、R3、R4和n如上任一项所定义。
在另一实施例中,所述制备方法包括如下步骤:
1)将咪唑类化合物1添加到的无水甲苯溶液中,在回流温度下搅拌48小时后,倒出溶剂并用乙醚洗涤,真空干燥后得到离子液体2;
2)室温下,向离子液体2的水溶液中添加Ag2WO4,搅拌1 h后,将反应混合液过滤,将滤液浓缩,并真空干燥,得到无色液体形式的离子液体3;
3)向离子液体3中加入二氯甲烷,搅拌均匀,室温下,将氯磺酸在10分钟内滴加至上述混合物中,反应混合物搅拌30-60分钟,然后除去二氯甲烷,混合物用无水二氯甲烷洗涤以除去过量的氯磺酸残留物。将离子液体真空干燥,得到离子液体4。
其中:步骤1)中化合物1与的摩尔比为1:(1-1.5),优选为1:1.1;
步骤2)中离子液体2与Ag2WO4的摩尔比为1:(0.5-1),优选为1:0.55;
步骤3)中离子液体3与氯磺酸的摩尔比为1:(1-1.5),优选为1:1.05。
在砜吡草唑的合成工艺中,虽然有报道利用双氧水对硫醚化合物进行氧化,制得砜吡草唑,然而由于硫醚的氧化过程中,如果氧化剂的氧化能力不足,容易生成大量的亚砜副产物。现有技术中为了解决这一技术问题,大多是利用杂多酸作为催化剂,或者利用氧化能力更强的氧化剂(如mCPBA)代替双氧水。然而尚未有报道直接利用离子液体催化双氧水的反应,本发明首次开发了利用酸性离子液体催化制备砜吡草唑。
与现有技术相比,本发明具有如下有益效果:
1)氧化过程中,采用功能化的离子液体(磺酸基咪唑类离子液体),配合双氧水进行氧化反应,产物收率和纯度均较高;
2)并且反应仅需在常温下进行,可以缩短反应时间至2-3个小时;
3)本发明的离子液体易于回收,回收后,可重复利用,节约了生产成本,且更为环保,无污染。
具体实施方式
下面将结合实施例对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
定义:
“烷基”是指仅仅由碳和氢原子组成,不含有不饱和度,可为C1-6烷基。在一些实施方案中,烷基具有1至6或1至4个碳原子。代表性饱和直链烷基包括但不限于-甲基、-乙基、-正丙基、-正丁基、-正戊基和-正己基;而饱和支链烷基包括但不限于-异丙基、-仲丁基、-异丁基、-叔丁基、-异戊基、2-甲基丁基、3-甲基丁基、2-甲基-戊基、3-甲基戊基、4-甲基戊基、2-甲基己基、3-甲基己基、4-甲基己基、5-甲基己基、2,3-二甲基-丁基等。烷基通过单键连接于母体分子。除非在说明书中另外陈述,否则烷基任选被一个或多个独立地包括以下的取代基取代:酰基、烷基、烯基、炔基、烷氧基、烷基芳基、环烷基。在一非限制性实施方案中,取代的烷基可选自氟甲基、二氟甲基、三氟甲基、2-氟乙基、3-氟丙基、羟基甲基、2-羟基乙基、3-羟基丙基、苯甲基和苯乙基。
“烷氧基”是指“烷基”通过氧原子与母体分子相连,其中“烷基”具有如上所述的定义。
“卤代烷基”是指其中所有氢原子部分或全部被选自氟代基、氯代基、溴代基和碘代基的卤素置换的烷基。在一些实施方案中,所有氢原子都各自被氟代基置换。在一些实施方案中,所有氢原子都各自被氯代基置换。卤代烷基的实例包括-CF3、-CF2CF3、-CF2CF2CF3、-CFCl2、-CF2Cl等。
下面结合具体的实施方式对本发明做进一步的解释说明。
实施例1 离子液体4a的制备
1)将(8.2g,0.10 mol)1-甲基咪唑(1a)添加到2-氯乙醇(7.4ml,约0.11 mol)的无水甲苯(50mL)溶液中,在回流温度下搅拌48小时后,倒出溶剂并用乙醚洗涤,真空干燥后得到离子液体2a;
2)室温下,向(8.1g,0.05mol)离子液体2a的水溶液中添加(0.026mol)Ag2WO4,搅拌1 h后,将反应混合液过滤,将滤液浓缩,并真空干燥,得到无色液体形式的离子液体3a;
3)向(2.5g,5mmol)离子液体3a中加入二氯甲烷30mL,搅拌均匀,室温下,将(1.22g,10.5mmol)氯磺酸在10分钟内滴加至上述混合物中,反应混合物搅拌30-60分钟,然后除去二氯甲烷,混合物用无水二氯甲烷(3×30 mL)洗涤以除去过量的氯磺酸残留物。将离子液体真空干燥,得到3.3g离子液体4a。1H NMR (500 MHz, DMSO-d6): 3.63-68 (t,2H), 7.75 (s, 3H), 4.19-25 (t, 2H), 5.35-43 (1H), 7.68 (s, 2H).
实施例2-5 离子液体4b-4e的制备
参照实施例1的方法,分别制得离子液体4b-4e:
。
实施例6 砜吡草唑的制备
在300ml三口烧瓶中加入甲醇80 mL,再加入38.9g(0.1mol)化合物II,搅拌溶解后,加入(1.32g,2mmol)酸性离子液体4a,然后滴加(0.5mol)30%双氧水,室温搅拌反应3h。反应结束之后,向体系中滴加浓度为10%的硫代硫酸钠水溶液淬灭过量的双氧水,过滤,干燥,得到40.2 g白色固体砜吡草唑I,收率95.5%,用液相色谱(LC)检测其砜吡草唑的含量为99.2%。
实施例7-10
参照实施例6的方法,制备砜吡草唑,不同之处在于分别用等摩尔量的酸性离子液体4b-4e代替实施例6中的酸性离子液体4a,相应的结果如下:
实施例11-14 催化剂用量对反应收率的影响
参照实施例6的方法制备砜吡草唑,不同之处在于催化剂的用量不同,相应的反应结果如下:
经过实验发现,当催化剂的用量过少时,产物收率较低,且产物纯度不高,可能是由于生成了大量的亚砜副产物。当催化剂的用量超过2mmol时,收率和纯度相差不大。
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。
Claims (10)
1.一种砜吡草唑的合成方法,包括如下步骤:
在酸性离子液体存在下,使中间体II与双氧水发生氧化反应,制得产物I,即砜吡草唑,反应式如下:
;
所述酸性离子液体的结构式如下:
R1选自:C1-C6烷基、C1-C6卤代烷基;
R2、R3、R4各自独立地选自如下基团:氢、C1-C6烷基、C1-C6卤代烷基;
n选自1、2或3;
所述酸性离子液体与化合物II的摩尔比为1:(30~60)。
2.根据权利要求1所述的合成方法,其特征在于,所述酸性离子液体选自如下结构之一:
。
3.根据权利要求1或2所述的合成方法,包括如下步骤:
在反应器中加入溶剂,再加入化合物II,搅拌溶解后,加入酸性离子液体,然后滴加双氧水,在搅拌条件下进行氧化反应,反应结束之后,向体系中滴加硫代硫酸钠水溶液淬灭过量的双氧水,过滤,干燥,得到白色固体砜吡草唑I。
4.根据权利要求3所述的合成方法,其特征在于:
所述溶剂选自甲醇、乙醇、二氯甲烷和二氯乙烷中的一种或几种;
所述双氧水的质量浓度为1~45%;
所述化合物II与双氧水的摩尔比为1:(1~10);
所述氧化反应的温度为-20~100℃;
所述氧化反应的时间为1~12小时。
5.根据权利要求4所述的合成方法,其特征在于:
所述双氧水的质量浓度为10~40%;
所述化合物II与双氧水的摩尔比为1:(4~8);
所述氧化反应的温度为-10~80℃;
所述氧化反应的时间为2-5小时。
6.根据权利要求5所述的合成方法,其特征在于:
所述双氧水的质量浓度为20~30%;
所述氧化反应的温度为20-30℃;
所述氧化反应的时间为2-3小时。
7.根据权利要求1所述的合成方法,其特征在于:所述离子液体的制备方法包括如下步骤:
其中R1、R2、R3、R4和n如权利要求1所定义。
8.根据权利要求7所述的合成方法,其特征在于包括如下步骤:
1)将咪唑类化合物1添加到的无水甲苯溶液中,在回流温度下搅拌48小时后,倒出溶剂并用乙醚洗涤,真空干燥后得到离子液体2;
2)室温下,向离子液体2的水溶液中添加Ag2WO4,搅拌1 h后,将反应混合液过滤,将滤液浓缩,并真空干燥,得到无色液体形式的离子液体3;
3)向离子液体3中加入二氯甲烷,搅拌均匀,室温下,将氯磺酸在10分钟内滴加至上述混合物中,反应混合物搅拌30-60分钟,然后除去二氯甲烷,混合物用无水二氯甲烷洗涤以除去过量的氯磺酸残留物,将离子液体真空干燥,得到离子液体4。
9.根据权利要求8所述的合成方法,其特征在于:
步骤1)中化合物1与的摩尔比为1:(1-1.5);
步骤2)中离子液体2与Ag2WO4的摩尔比为1:(0.5-1);
步骤3)中离子液体3与氯磺酸的摩尔比为1:(1-1.5)。
10.根据权利要求9所述的合成方法,其特征在于:
步骤1)中化合物1与的摩尔比为1:1.1;
步骤2)中离子液体2与Ag2WO4的摩尔比为1:0.55;
步骤3)中离子液体3与氯磺酸的摩尔比为1:1.05。
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