WO2022002116A1 - 一种苯基异恶唑啉类化合物的制备方法 - Google Patents
一种苯基异恶唑啉类化合物的制备方法 Download PDFInfo
- Publication number
- WO2022002116A1 WO2022002116A1 PCT/CN2021/103472 CN2021103472W WO2022002116A1 WO 2022002116 A1 WO2022002116 A1 WO 2022002116A1 CN 2021103472 W CN2021103472 W CN 2021103472W WO 2022002116 A1 WO2022002116 A1 WO 2022002116A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- uracil
- alkyl
- compound
- hours
- benzaldehyde
- Prior art date
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- -1 phenylisoxazoline compound Chemical class 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title abstract description 15
- ISAKRJDGNUQOIC-UHFFFAOYSA-N Uracil Chemical compound O=C1C=CNC(=O)N1 ISAKRJDGNUQOIC-UHFFFAOYSA-N 0.000 claims abstract description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 22
- 229940035893 uracil Drugs 0.000 claims abstract description 15
- KENAMMSVUHVEOL-UHFFFAOYSA-N 4-chloro-2-fluoro-5-methylaniline Chemical compound CC1=CC(N)=C(F)C=C1Cl KENAMMSVUHVEOL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 7
- UKFPAGCSDWQXFT-UHFFFAOYSA-N 3-phenyl-4,5-dihydro-1,2-oxazole Chemical compound O1CCC(C=2C=CC=CC=2)=N1 UKFPAGCSDWQXFT-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims description 37
- 239000002904 solvent Substances 0.000 claims description 20
- 229910052739 hydrogen Inorganic materials 0.000 claims description 19
- 239000001257 hydrogen Substances 0.000 claims description 19
- 239000002585 base Substances 0.000 claims description 18
- 125000004765 (C1-C4) haloalkyl group Chemical group 0.000 claims description 17
- 239000003153 chemical reaction reagent Substances 0.000 claims description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000012074 organic phase Substances 0.000 claims description 15
- WTDHULULXKLSOZ-UHFFFAOYSA-N Hydroxylamine hydrochloride Chemical compound Cl.ON WTDHULULXKLSOZ-UHFFFAOYSA-N 0.000 claims description 14
- 239000003054 catalyst Substances 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 11
- 230000002140 halogenating effect Effects 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 8
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 8
- 238000010189 synthetic method Methods 0.000 claims description 8
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 7
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- 230000001035 methylating effect Effects 0.000 claims description 6
- 125000004769 (C1-C4) alkylsulfonyl group Chemical group 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 125000004767 (C1-C4) haloalkoxy group Chemical group 0.000 claims description 4
- 125000004448 alkyl carbonyl group Chemical group 0.000 claims description 4
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 claims description 4
- SNOOUWRIMMFWNE-UHFFFAOYSA-M sodium;6-[(3,4,5-trimethoxybenzoyl)amino]hexanoate Chemical compound [Na+].COC1=CC(C(=O)NCCCCCC([O-])=O)=CC(OC)=C1OC SNOOUWRIMMFWNE-UHFFFAOYSA-M 0.000 claims description 4
- FZFAMSAMCHXGEF-UHFFFAOYSA-N chloro formate Chemical compound ClOC=O FZFAMSAMCHXGEF-UHFFFAOYSA-N 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 125000000636 p-nitrophenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)[N+]([O-])=O 0.000 claims description 3
- 239000000376 reactant Substances 0.000 claims description 3
- 125000006273 (C1-C3) alkyl group Chemical group 0.000 claims description 2
- 125000006559 (C1-C3) alkylamino group Chemical group 0.000 claims description 2
- 125000006603 (C1-C3) alkylaminosulfonyl group Chemical group 0.000 claims description 2
- 125000004457 alkyl amino carbonyl group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 125000004414 alkyl thio group Chemical group 0.000 claims description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- LDHQCZJRKDOVOX-NSCUHMNNSA-N crotonic acid Chemical compound C\C=C\C(O)=O LDHQCZJRKDOVOX-NSCUHMNNSA-N 0.000 claims description 2
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 2
- 238000006251 dihalogenation reaction Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 150000002547 isoxazolines Chemical class 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 4
- 150000004657 carbamic acid derivatives Chemical class 0.000 claims 3
- AOGYCOYQMAVAFD-UHFFFAOYSA-N chlorocarbonic acid Chemical class OC(Cl)=O AOGYCOYQMAVAFD-UHFFFAOYSA-N 0.000 claims 2
- VTWKXBJHBHYJBI-VURMDHGXSA-N (nz)-n-benzylidenehydroxylamine Chemical compound O\N=C/C1=CC=CC=C1 VTWKXBJHBHYJBI-VURMDHGXSA-N 0.000 claims 1
- 125000003971 isoxazolinyl group Chemical group 0.000 abstract description 4
- 238000001308 synthesis method Methods 0.000 abstract description 2
- 238000009776 industrial production Methods 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 30
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 29
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical group CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 18
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical group ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 18
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 18
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical group [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 16
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 11
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 229910000027 potassium carbonate Inorganic materials 0.000 description 9
- 235000011181 potassium carbonates Nutrition 0.000 description 9
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 8
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 8
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 238000004128 high performance liquid chromatography Methods 0.000 description 8
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical class O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 8
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 7
- 239000000543 intermediate Substances 0.000 description 7
- 239000011736 potassium bicarbonate Substances 0.000 description 7
- 235000015497 potassium bicarbonate Nutrition 0.000 description 7
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 7
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 7
- 238000010992 reflux Methods 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical group N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 6
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 6
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical group BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003444 phase transfer catalyst Substances 0.000 description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 description 6
- 235000017550 sodium carbonate Nutrition 0.000 description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical group ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 6
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 description 5
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 4
- VHYFNPMBLIVWCW-UHFFFAOYSA-N 4-Dimethylaminopyridine Chemical compound CN(C)C1=CC=NC=C1 VHYFNPMBLIVWCW-UHFFFAOYSA-N 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- JRNVZBWKYDBUCA-UHFFFAOYSA-N N-chlorosuccinimide Chemical compound ClN1C(=O)CCC1=O JRNVZBWKYDBUCA-UHFFFAOYSA-N 0.000 description 4
- 229960001701 chloroform Drugs 0.000 description 4
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 4
- 235000011118 potassium hydroxide Nutrition 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- GQHTUMJGOHRCHB-UHFFFAOYSA-N DBU Substances C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 3
- 229910052794 bromium Inorganic materials 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 3
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical group IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 125000001424 substituent group Chemical group 0.000 description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 3
- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 description 3
- VSTXCZGEEVFJES-UHFFFAOYSA-N 1-cycloundecyl-1,5-diazacycloundec-5-ene Chemical compound C1CCCCCC(CCCC1)N1CCCCCC=NCCC1 VSTXCZGEEVFJES-UHFFFAOYSA-N 0.000 description 2
- KGFYBSLNHAYQLY-UHFFFAOYSA-N 2-(dimethylamino)-4-(trifluoromethyl)-1,3-oxazin-6-one Chemical compound CN(C)C1=NC(C(F)(F)F)=CC(=O)O1 KGFYBSLNHAYQLY-UHFFFAOYSA-N 0.000 description 2
- HNOIAPRHNXBCAE-UHFFFAOYSA-N 2-chloro-4-fluoro-5-nitrobenzaldehyde Chemical compound [O-][N+](=O)C1=CC(C=O)=C(Cl)C=C1F HNOIAPRHNXBCAE-UHFFFAOYSA-N 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 2
- 240000001592 Amaranthus caudatus Species 0.000 description 2
- 235000009328 Amaranthus caudatus Nutrition 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- SOGAXMICEFXMKE-UHFFFAOYSA-N Butylmethacrylate Chemical group CCCCOC(=O)C(C)=C SOGAXMICEFXMKE-UHFFFAOYSA-N 0.000 description 2
- XASPCJRBQSRJBH-UHFFFAOYSA-N ClC1=C(C=C(C(=C1)F)[N+](=O)[O-])C1=NOC(C1)(C(=O)OCC)C Chemical compound ClC1=C(C=C(C(=C1)F)[N+](=O)[O-])C1=NOC(C1)(C(=O)OCC)C XASPCJRBQSRJBH-UHFFFAOYSA-N 0.000 description 2
- MXJSOUALMQDXIQ-UHFFFAOYSA-N ClC1=C(C=NO)C=C(C(=C1)F)[N+](=O)[O-] Chemical compound ClC1=C(C=NO)C=C(C(=C1)F)[N+](=O)[O-] MXJSOUALMQDXIQ-UHFFFAOYSA-N 0.000 description 2
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- PSRVQQFHOLSZLL-UHFFFAOYSA-N NC=1C(=CC(=C(C=1)C1=NOC(C1)(C(=O)OCC)C)Cl)F Chemical compound NC=1C(=CC(=C(C=1)C1=NOC(C1)(C(=O)OCC)C)Cl)F PSRVQQFHOLSZLL-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- HTZCNXWZYVXIMZ-UHFFFAOYSA-M benzyl(triethyl)azanium;chloride Chemical compound [Cl-].CC[N+](CC)(CC)CC1=CC=CC=C1 HTZCNXWZYVXIMZ-UHFFFAOYSA-M 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 2
- 238000004440 column chromatography Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- NRNFKRFWZQQDMD-UHFFFAOYSA-M dichloromethylidene(dimethyl)azanium;chloride Chemical compound [Cl-].C[N+](C)=C(Cl)Cl NRNFKRFWZQQDMD-UHFFFAOYSA-M 0.000 description 2
- NXVKRKUGIINGHD-ARJAWSKDSA-N ethyl (z)-3-amino-4,4,4-trifluorobut-2-enoate Chemical compound CCOC(=O)\C=C(/N)C(F)(F)F NXVKRKUGIINGHD-ARJAWSKDSA-N 0.000 description 2
- 125000004494 ethyl ester group Chemical group 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- 230000002363 herbicidal effect Effects 0.000 description 2
- SHFJWMWCIHQNCP-UHFFFAOYSA-M hydron;tetrabutylazanium;sulfate Chemical compound OS([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC SHFJWMWCIHQNCP-UHFFFAOYSA-M 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 125000001453 quaternary ammonium group Chemical group 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 2
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 150000003462 sulfoxides Chemical class 0.000 description 2
- NHGXDBSUJJNIRV-UHFFFAOYSA-M tetrabutylammonium chloride Chemical compound [Cl-].CCCC[N+](CCCC)(CCCC)CCCC NHGXDBSUJJNIRV-UHFFFAOYSA-M 0.000 description 2
- FWPIDFUJEMBDLS-UHFFFAOYSA-L tin(II) chloride dihydrate Chemical compound O.O.Cl[Sn]Cl FWPIDFUJEMBDLS-UHFFFAOYSA-L 0.000 description 2
- IPILPUZVTYHGIL-UHFFFAOYSA-M tributyl(methyl)azanium;chloride Chemical compound [Cl-].CCCC[N+](C)(CCCC)CCCC IPILPUZVTYHGIL-UHFFFAOYSA-M 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- 125000004205 trifluoroethyl group Chemical group [H]C([H])(*)C(F)(F)F 0.000 description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 2
- VFTFKUDGYRBSAL-UHFFFAOYSA-N 15-crown-5 Chemical compound C1COCCOCCOCCOCCO1 VFTFKUDGYRBSAL-UHFFFAOYSA-N 0.000 description 1
- XEZNGIUYQVAUSS-UHFFFAOYSA-N 18-crown-6 Chemical compound C1COCCOCCOCCOCCOCCO1 XEZNGIUYQVAUSS-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- LXQPBCHJNIOMQU-UHFFFAOYSA-N 2,4-dimethylpent-1-ene Chemical compound CC(C)CC(C)=C LXQPBCHJNIOMQU-UHFFFAOYSA-N 0.000 description 1
- RCBGGJURENJHKV-UHFFFAOYSA-N 2-methylhept-1-ene Chemical compound CCCCCC(C)=C RCBGGJURENJHKV-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 125000001494 2-propynyl group Chemical group [H]C#CC([H])([H])* 0.000 description 1
- NUXLDNTZFXDNBA-UHFFFAOYSA-N 6-bromo-2-methyl-4h-1,4-benzoxazin-3-one Chemical compound C1=C(Br)C=C2NC(=O)C(C)OC2=C1 NUXLDNTZFXDNBA-UHFFFAOYSA-N 0.000 description 1
- 241001290610 Abildgaardia Species 0.000 description 1
- 235000015701 Artemisia arbuscula Nutrition 0.000 description 1
- 235000002657 Artemisia tridentata Nutrition 0.000 description 1
- 235000003261 Artemisia vulgaris Nutrition 0.000 description 1
- 240000006891 Artemisia vulgaris Species 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 241001232700 Carex aquatilis Species 0.000 description 1
- 241001273783 Carex scoparia Species 0.000 description 1
- 244000037364 Cinnamomum aromaticum Species 0.000 description 1
- 235000014489 Cinnamomum aromaticum Nutrition 0.000 description 1
- 244000270200 Citrullus vulgaris Species 0.000 description 1
- 235000012840 Citrullus vulgaris Nutrition 0.000 description 1
- 229920000858 Cyclodextrin Polymers 0.000 description 1
- 235000001602 Digitaria X umfolozi Nutrition 0.000 description 1
- 235000017898 Digitaria ciliaris Nutrition 0.000 description 1
- 235000005476 Digitaria cruciata Nutrition 0.000 description 1
- 235000006830 Digitaria didactyla Nutrition 0.000 description 1
- 235000005804 Digitaria eriantha ssp. eriantha Nutrition 0.000 description 1
- 235000010823 Digitaria sanguinalis Nutrition 0.000 description 1
- 244000058871 Echinochloa crus-galli Species 0.000 description 1
- 244000025670 Eleusine indica Species 0.000 description 1
- 235000014716 Eleusine indica Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical group COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920000604 Polyethylene Glycol 200 Polymers 0.000 description 1
- 229920002565 Polyethylene Glycol 400 Polymers 0.000 description 1
- 229920002582 Polyethylene Glycol 600 Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 244000234609 Portulaca oleracea Species 0.000 description 1
- 235000001855 Portulaca oleracea Nutrition 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 235000008406 SarachaNachtschatten Nutrition 0.000 description 1
- 235000004790 Solanum aculeatissimum Nutrition 0.000 description 1
- 235000008424 Solanum demissum Nutrition 0.000 description 1
- 235000018253 Solanum ferox Nutrition 0.000 description 1
- 235000000208 Solanum incanum Nutrition 0.000 description 1
- 235000013131 Solanum macrocarpon Nutrition 0.000 description 1
- 235000009869 Solanum phureja Nutrition 0.000 description 1
- 240000002307 Solanum ptychanthum Species 0.000 description 1
- 235000000341 Solanum ptychanthum Nutrition 0.000 description 1
- 235000017622 Solanum xanthocarpum Nutrition 0.000 description 1
- 240000003307 Zinnia violacea Species 0.000 description 1
- 235000012735 amaranth Nutrition 0.000 description 1
- 239000004178 amaranth Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- 125000005448 ethoxyethyl group Chemical group [H]C([H])([H])C([H])([H])OC([H])([H])C([H])([H])* 0.000 description 1
- PANVQYQDKCEJEG-UHFFFAOYSA-N ethyl 3-methyl-4,5-dihydro-1,2-oxazole-5-carboxylate Chemical compound CCOC(=O)C1CC(C)=NO1 PANVQYQDKCEJEG-UHFFFAOYSA-N 0.000 description 1
- 238000010812 external standard method Methods 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004009 herbicide Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 description 1
- YWOITFUKFOYODT-UHFFFAOYSA-N methanol;sodium Chemical compound [Na].OC YWOITFUKFOYODT-UHFFFAOYSA-N 0.000 description 1
- GTRBXMICTQNNIN-UHFFFAOYSA-N methyl 2-(trifluoromethyl)prop-2-enoate Chemical compound COC(=O)C(=C)C(F)(F)F GTRBXMICTQNNIN-UHFFFAOYSA-N 0.000 description 1
- 229940050176 methyl chloride Drugs 0.000 description 1
- 239000012022 methylating agents Substances 0.000 description 1
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N o-dimethylbenzene Natural products CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000004714 phosphonium salts Chemical group 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- BOQSSGDQNWEFSX-UHFFFAOYSA-N propan-2-yl 2-methylprop-2-enoate Chemical group CC(C)OC(=O)C(C)=C BOQSSGDQNWEFSX-UHFFFAOYSA-N 0.000 description 1
- NHARPDSAXCBDDR-UHFFFAOYSA-N propyl 2-methylprop-2-enoate Chemical group CCCOC(=O)C(C)=C NHARPDSAXCBDDR-UHFFFAOYSA-N 0.000 description 1
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006798 ring closing metathesis reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- SJMYWORNLPSJQO-UHFFFAOYSA-N tert-butyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C)(C)C SJMYWORNLPSJQO-UHFFFAOYSA-N 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- DDFYFBUWEBINLX-UHFFFAOYSA-M tetramethylammonium bromide Chemical compound [Br-].C[N+](C)(C)C DDFYFBUWEBINLX-UHFFFAOYSA-M 0.000 description 1
- IMFACGCPASFAPR-UHFFFAOYSA-N tributylamine Chemical compound CCCCN(CCCC)CCCC IMFACGCPASFAPR-UHFFFAOYSA-N 0.000 description 1
- CEYYIKYYFSTQRU-UHFFFAOYSA-M trimethyl(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)C CEYYIKYYFSTQRU-UHFFFAOYSA-M 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/52—Two oxygen atoms
- C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
-
- 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
- C07D413/10—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 carbon chain containing aromatic rings
Definitions
- the invention belongs to the field of organic synthesis, and in particular relates to a preparation method of a phenylisoxazoline compound.
- Patent WO2016095768 reports phenylisoxazoline compounds as shown in general formula I:
- the compound of general formula I has good herbicidal activity and can effectively control barnyardgrass, foxtail, sedge, water sedge, crabgrass, sedge grass, abalone, zinnia, amaranth, purslane, sagebrush Ear, nightshade, cassia, wild watermelon seedlings, wild soybeans and other weeds can achieve good herbicidal effects at low doses, and can be used as herbicides in agriculture.
- Patents WO2016095768 and CN108570041 also involve the preparation of such compounds, but their synthesis is to first synthesize isoxazoline rings and then synthesize uracil rings.
- the disadvantage of this synthesis method is: the stability of the isoxazoline ring synthesized first is not good, the temperature and alkali requirements for the uracil ring closure are relatively high, and it is easy to cause by-products, resulting in long reaction time and low yield. .
- the purpose of the present invention is to provide a preparation method of phenylisoxazoline compounds with cheap and easily available raw materials and simple synthesis process.
- the present invention adopts the technical scheme as follows:
- step 2) reacting the carbamate generated in step 1) with trifluoroamino crotonate to obtain uracil through a methylating reagent;
- step 2) the uracil generated in step 2) is obtained by the mode of oxidation or dihalogenation hydrolysis to obtain uracil benzaldehyde;
- uracil benzaldehyde (IV) generated in step 3) is reacted with hydroxylamine hydrochloride to obtain uracil benzaldehyde oxime;
- step 5 The uracil benzaldoxime generated in step 4) is chlorinated with NCS and then closed with an alkene compound to obtain a phenylisoxazoline compound.
- the synthetic route is as follows:
- R 1 is selected from methyl, ethyl, phenyl, 4-nitrophenyl or benzyl;
- R 2 is selected from hydrogen, C 1 -C 4 alkyl, CO 2 R 4 or CH 2 OR 5 ;
- R 3 is selected from hydrogen, cyano, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, CO 2 R 4 or CH 2 OR 5 ;
- R 4 is selected from hydrogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 3 -C 4 alkenyl, C 3 -C 4 alkynyl, C 1 -C 4 alkoxy C 1 -C 4 alkyl, C 1 -C 4 alkylcarbonyloxy C 2 -C 3 alkyl, unsubstituted or substituted by 1-4 groups independently selected from benzyl, furamethylene or tetrahydrofuramethylene, The following groups are halogen, CN, NO 2 , C 1 -C 4 alkyl or C 1 -C 4 haloalkyl;
- R 5 is selected from hydrogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxycarbonyl, C 1 -C 4 alkylcarbonyl, C 1 -C 4 haloalkylcarbonyl, C 3 -C 6 cycloalkylcarbonyl, C 3 -C 6 halocycloalkylcarbonyl, C 1 -C 4 alkylsulfonyl, C 1 -C 4 haloalkylsulfonyl, C 1 -C 3 alkylamino Sulfonyl, di(C 1 -C 3 )alkylaminosulfonyl, C 1 -C 3 alkylaminocarbonyl, di(C 1 -C 3 )alkylaminocarbonyl, di(C 1 -C 3 )alkylaminocarbonyl, di(C 1 -C 3 )alkylaminocarbonyl, di(
- R 1 is selected from methyl, ethyl, phenyl, 4-nitrophenyl or benzyl;
- R 2 is selected from hydrogen, C 1 -C 4 alkyl, CO 2 R 4 or CH 2 OR 5 ;
- R 3 is selected from hydrogen, C 1 -C 4 alkyl or C 1 -C 4 haloalkyl
- R 4 is selected from hydrogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 3 -C 4 alkenyl, C 3 -C 4 alkynyl, C 1 -C 4 alkoxy C 1 -C 4 alkyl, C 1 -C 4 alkylcarbonyloxy C 2 -C 3 alkyl, benzyl, furamethylene or tetrahydrofuran methylene;
- R 5 is selected from hydrogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 1 -C 4 alkoxycarbonyl, C 1 -C 4 alkylcarbonyl, C 1 -C 4 haloalkylcarbonyl, C 3 -C 6 cycloalkylcarbonyl, C 3 -C 6 halocycloalkylcarbonyl, C 1 -C 4 alkylsulfonyl, C 1 -C 4 haloalkylsulfonyl.
- R 2 is selected from hydrogen, C 1 -C 4 alkyl, CO 2 R 4 or CH 2 OR 5 ;
- R 3 is selected from hydrogen, C 1 -C 4 alkyl or C 1 -C 4 haloalkyl
- R 4 is selected from hydrogen, C 1 -C 4 alkyl, C 1 -C 4 haloalkyl, C 3 -C 4 alkenyl, C 3 -C 4 alkynyl, C 1 -C 4 alkoxy C 1 -C 4 alkyl, C 1 -C 4 alkylcarbonyloxy C 2 -C 3 alkyl, benzyl, furamethylene or tetrahydrofuran methylene;
- R 5 is selected from hydrogen, C 1 -C 4 alkylcarbonyl or C 3 -C 6 cycloalkylcarbonyl.
- R 1 is selected from ethyl
- R 2 is selected from hydrogen, cyano, methyl, ethyl, n-propyl, n-butyl, isopropyl, isobutyl, tert-butyl, trifluoroethyl, trifluoromethyl or CO 2 R 4 ;
- R 3 is selected from hydrogen, methyl, ethyl, propyl, isopropyl, tert-butyl or trifluoromethyl;
- R 4 is selected from hydrogen, methyl, ethyl, n-propyl, n-butyl, isopropyl, isobutyl, tert-butyl, trifluoroethyl, allyl, propargyl, methoxyethyl , ethoxyethyl, methylcarbonyloxyethyl, 2-tetrahydrofuranmethylene or 3-tetrahydrofuranmethylene.
- step 1) 2-fluoro-4-chloro-5-methylaniline (I) is heated to 60-100° C. in a solvent and under alkaline conditions, and the chloroformate compound is added dropwise to react. 1-4h generates carbamate compound (II); wherein, the molar ratio of 2-fluoro-4-chloro-5-methylaniline (I), alkali and chloroformate compound is 1:(1-4) : (1-2).
- the step 2) is to react the carbamate compound (II) obtained in the step 1) with trifluoroaminocrotonate in a solvent and under alkaline conditions, using a catalyst at 100-140° C. for 3-8 hours, and the reaction is performed. After cooling down to room temperature, adding methylating reagent and adding base, and reacting at 20-80° C. for 2-8 hours to obtain uracil (III).
- the molar ratio of carbamate (II), trifluoroaminocrotonate, base, catalyst and methylating reagent is 1:(1-1.2):(1.5-3):(0.01-0.1):( 1-2).
- the step 3) is to mix the uracil (III) obtained in step 2), the halogenated reagent, the solvent, and the catalyst, react at 50-150° C. for 2-10 hours, and after the reaction is cooled to room temperature, extract and collect the organic phase subtraction After pressure distillation, dihalide is obtained, adding acid for hydrolysis, reacting at 50-100 ° C for 4-12 hours, then vacuum distillation, neutralizing the pH of the system to neutrality, and filtering to obtain uracil benzaldehyde (IV);
- the molar ratio of uracil (III), halogenating reagent, catalyst and acid is 1:(2.5-3.5):(0.01-0.1):(10-30).
- the molar ratio of uracil benzaldehyde oxime (V), halogenating reagent, olefinic compound (VI) and base is 1:(1-1.5):1:(1-2).
- the molar ratio of the 2-fluoro-4-chloro-5-methylaniline (I), the base and the chloroformate compound in the step 1) is 1: (1.5-3): (1-1.5);
- the solvent is selected from acetonitrile, ethyl acetate or 2-butanone;
- the base is selected from potassium carbonate, sodium carbonate, potassium bicarbonate or sodium bicarbonate;
- the solvent is selected from acetonitrile, tetrahydrofuran, 1,4-dioxane, ethylene glycol dimethyl ether, ethyl acetate, 2-butanone, N,N-dimethylformamide or dimethylformamide.
- the alkali environment and the added alkali are all selected from potassium carbonate, sodium carbonate, potassium bicarbonate, sodium bicarbonate, sodium hydroxide, potassium hydroxide, lithium hydroxide, tert-butyl Sodium alkoxide, potassium tert-butoxide, sodium ethoxide, sodium methoxide, triethylamine, pyridine or 4-dimethylaminopyridine;
- the catalyst is selected from polyether phase transfer catalyst, cyclic crown ether phase transfer catalyst, quaternary ammonium
- the methylating agent is selected from methyl iodide, dimethyl sulfate ester or methyl chloride.
- a rectifying device can be used to separate the moisture and low-boiling point solvent in the reaction;
- the molar ratio of the carbamate (II), trifluoroaminocrotonate and alkali is 1:(1 ⁇ 1.1): (1-2.5);
- the solvent is selected from one or both of acetonitrile, 2-butanone, N,N-dimethylformamide or dimethyl sulfoxide;
- the bases are all selected from potassium carbonate, sodium carbonate, potassium bicarbonate or sodium bicarbonate;
- the catalyst is selected from PEG-200, PEG-400, PEG-600, 18 crown-6, 15 crown-5, cyclodextrin, benzyl triethylammonium chloride, tetrabutylammonium bromide, tetrabutylammonium chloride, tetrabutylammonium hydrogen sulfate, tetramethylammonium bromide,
- the catalyst is selected from one or both of tetrabutylammonium bromide, tributylmethylammonium chloride or DBU.
- the halogenating reagent is selected from NBS, NCS, chlorine or bromine;
- the solvent is selected from carbon tetrachloride, chloroform, acetonitrile, ethyl acetate, isopropyl acetate, tetrahydrofuran, 1,4- Dioxane, ethylene glycol dimethyl ether or benzene;
- the catalyst is selected from azobisisobutyronitrile or benzoyl peroxide;
- the acid is selected from hydrochloric acid, sulfuric acid and formic acid;
- the base is selected from hydroxide Sodium, sodium carbonate, sodium bicarbonate, potassium hydroxide, potassium carbonate or potassium bicarbonate.
- the halogenating agent is selected from NBS; the solvent is selected from carbon tetrachloride or 1,4-dioxane; the base is selected from sodium hydroxide or potassium hydroxide.
- the alcohol is selected from methanol, ethanol or isopropanol.
- the reaction time of step 4) is 1-3 hours.
- the step 5) the reactants are extracted and layered, the organic phase is washed with 1N hydrochloric acid and saturated brine successively, and the product phenylisoxazoline compound (VII) is obtained by distillation under reduced pressure;
- the halogenated reagent is selected from NBS, NCS, chlorine or bromine;
- the base is selected from sodium bicarbonate, potassium bicarbonate, sodium carbonate, potassium carbonate, triethylamine or pyridine;
- the solvent is selected from dichloromethane, trichloromethane, ethylene glycol dimethyl ether, acetic acid One or both of ethyl ester or N,N-dimethylformamide;
- the halogenating reagent in step 5 is selected from NCS or bromine; the base is selected from sodium bicarbonate, potassium bicarbonate or triethylamine.
- the content of the product was determined by high performance liquid chromatography using the external standard method.
- the invention relates to an intermediate compound for synthesizing phenylisoxazoline compounds.
- the structural formula of the intermediate compound is shown in formula V in the reaction formula. The selection of the substituents is as described above.
- the invention also relates to the application of the compound in the synthesis of isoxazoline compounds containing uracil.
- the preparation method provided by the invention firstly synthesizes the uracil ring, and finally synthesizes the isoxazoline ring, without using expensive dichloromethylene dimethyl ammonium chloride, the adopted raw materials are easy to obtain, the cost is low, and the effective The process cost is reduced; and the reactions involved in the method of the present invention are all conventional operation units, which are simple to operate and easy to industrialize; the relevant intermediates in the reaction process are relatively stable, and by-products are not easily generated; some intermediates in the reaction process do not need to be specially purified, and can be directly used In the next step of the reaction, it is beneficial to the continuous operation of the industry; the yield is obviously higher than that of the prior art, and the total yield is increased by as much as 3 times.
- ethyl methacrylate in Synthesis Example 2 was replaced with methyl methacrylate, isopropyl methacrylate, n-butyl methacrylate, and n-propyl methacrylate.
- tert-butyl methacrylate, 2-ethoxyethyl methacrylate, methyl 2-(trifluoromethyl)acrylate, ethyl acrylate, 2-methyl-1-heptene, 2,4- Dimethyl-1-pentene can be prepared except compound VII-1 and other compounds shown in formula VII, and the specific nuclear magnetic data and yield of other compounds shown in formula VII are shown in Table 1:
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Plural Heterocyclic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims (9)
- 一种苯基异恶唑啉类化合物的合成方法,其特征在于:1)以2-氟-4-氯-5-甲基苯胺和氯甲酸酯类化合物为原料反应生成氨基甲酸酯类化合物;2)将步骤1)生成的氨基甲酸酯与三氟氨基巴豆酸酯反应后经甲基化试剂得到脲嘧啶;3)将步骤2)生成的脲嘧啶经过氧化或二卤化水解的方式得到脲嘧啶苯甲醛;4)将步骤3)生成的脲嘧啶苯甲醛(IV)经过与盐酸羟胺反应得到脲嘧啶苯甲醛肟;5)将步骤4)生成的脲嘧啶苯甲醛肟经过NCS氯化后与烯类化合物合环得到苯基异恶唑啉化合物。
- 按权利要求1所述的苯基异恶唑啉类化合物的合成方法,其特征在于:所述合成路线如下:式中,R 1选自甲基、乙基、苯基、4-硝基苯基或苄基;R 2选自氢、C 1-C 4烷基、CO 2R 4或CH 2OR 5;R 3选自氢、氰基、C 1-C 4烷基、C 1-C 4卤代烷基、CO 2R 4或CH 2OR 5;R 4选自氢、C 1-C 4烷基、C 1-C 4卤代烷基、C 3-C 4烯基、C 3-C 4炔基、C 1-C 4烷氧基C 1-C 4烷基、C 1-C 4烷羰基氧基C 2-C 3烷基,未取代或者被1-4个独立选自以下基团取代的苄基、呋喃亚甲基或四氢呋喃亚甲基,以下基团为卤素、CN、NO 2、C 1-C 4烷基或C 1-C 4卤代烷基;R 5选自氢、C 1-C 4烷基、C 1-C 4卤代烷基、C 1-C 4烷氧基羰基、C 1-C 4烷基羰基、C 1-C 4卤代烷基羰基、C 3-C 6环烷基羰基、C 3-C 6卤代环烷基羰基、C 1-C 4烷基磺酰基、C 1-C 4卤代烷基磺酰基、C 1-C 3烷基氨基磺酰基、二(C 1-C 3)烷基氨基磺酰基、C 1-C 3烷基氨基羰基、二(C 1-C 3)烷基氨基羰基、二(C 1-C 3)烷基氨基硫代羰基、C 1-C 2烷硫基C 2-C 4烷基羰基,未取代或者被1-4个独立选自以下基团取代的苯基C 1-C 2烷基、苯基羰基、苯基C 1-C 2烷基羰基、苯基C 2-C 4烯基羰基、苯氧基C 1-C 2烷基羰基、噻吩羰基、吡唑羰基、喹啉羰基;以下基团为卤素、CN、NO 2、C 1-C 4烷基、C 1-C 4卤代烷基、C 1-C 4烷氧基、C 1-C 4卤代烷氧基、C 1-C 4烷氧基羰基、C 1-C 4烷硫基、C 1-C 4烷基磺酰基或被1-4个卤素、CN、NO 2、C 1-C 4烷基、C 1-C 4卤代烷基、C 1-C 4烷氧基或C 1-C 4卤代烷氧基独立取代的苯氧基。
- 根据权利要求1或2所述的合成方法,其特征在于,所述步骤1)将2-氟-4-氯-5-甲基苯胺(I)在溶剂中、碱性条件下加热至60-100℃,滴加氯甲酸酯类化合物后反应1-4h生成氨基甲酸酯类化合物(II);其中,2-氟-4-氯-5-甲基苯胺(I)、碱和氯甲酸酯类化合物的摩尔比为1:(1-4):(1-2)。
- 根据权利要求1或2所述的合成方法,其特征在于,所述步骤2)为将步骤1)所得产物氨基甲酸酯类化合物(II)与三氟氨基巴豆酸酯在溶剂中、碱性条件下,利用催化剂于100-140℃反应3-8小时,反应后降至室温加入甲基化试剂并补加碱,在20-80℃下反应2-8小时得到脲嘧啶(III)。其中,氨基甲酸酯(II)、三氟氨基巴豆酸酯、碱、催化剂和甲基化试剂的摩尔比为1:(1-1.2):(1.5-3):(0.01-0.1):(1-2)。
- 根据权利要求1或2所述的合成方法,其特征在于,所述步骤3)为将步骤2)获得的脲嘧啶(III)、卤化试剂、溶剂、催化剂混合,在50-150℃下反应2-10小时,反应后降至室温后通过萃取,收集有机相减压蒸馏后得到二卤化物,加入酸水解,在50-100℃下反应4-12小时,而后减压蒸馏,中和体系pH至中性,过滤得脲嘧啶苯甲醛(IV);其中,脲嘧啶(III)、卤化试剂、催化剂、酸摩尔比为1:(2.5-3.5):(0.01-0.1):(10-30)。
- 根据权利要求1或2所述的合成方法,其特征在于,所述步骤4)为将脲嘧啶苯甲醛(IV)与盐酸羟胺在醇中,室温下反应1-6小时,经过滤得脲嘧啶苯甲醛肟(V);其中,脲嘧啶苯甲醛(IV)与盐酸羟胺的摩尔比为1:(1-1.5)。
- 根据权利要求1或2所述的合成方法,其特征在于,所述步骤5)为将步骤4)所得脲嘧啶苯甲醛肟(V)加入到溶剂中,在20-40℃下加入卤化试剂,在此温度下反应0.5-2小时,降温至0-15℃,在此温度下加入烯类化合物(VI)及碱,保持1-4小时,反应物经萃取分层,有机相经洗涤后减压蒸馏得产品苯基异恶唑啉化合物(VII);其中,脲嘧啶苯甲醛肟(V)、卤化试剂、烯类化合物(VI)及碱的摩尔比为1:(1-1.5):1:(1-2)。
- 一种合成苯基异恶唑啉类化合物的中间体化合物,其特征在于:中间体化合物其结构式如权利要求2中的式V所示。
- 按权利要求8所述化合物在合成含有脲嘧啶的异噁唑啉类化合物中的应用。
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