IE47471B1 - Method of preparing 2,4-difluoroaniline - Google Patents
Method of preparing 2,4-difluoroanilineInfo
- Publication number
- IE47471B1 IE47471B1 IE2132/78A IE213278A IE47471B1 IE 47471 B1 IE47471 B1 IE 47471B1 IE 2132/78 A IE2132/78 A IE 2132/78A IE 213278 A IE213278 A IE 213278A IE 47471 B1 IE47471 B1 IE 47471B1
- Authority
- IE
- Ireland
- Prior art keywords
- difluoroaniline
- difluoro
- trichloronitrobenzene
- chloronitrobenzene
- liquid phase
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- CEPCPXLLFXPZGW-UHFFFAOYSA-N 2,4-difluoroaniline Chemical compound NC1=CC=C(F)C=C1F CEPCPXLLFXPZGW-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000003054 catalyst Substances 0.000 claims abstract description 31
- 238000005984 hydrogenation reaction Methods 0.000 claims abstract description 23
- IBRBMZRLVYKVRF-UHFFFAOYSA-N 1,2,4-trichloro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(Cl)C=C1Cl IBRBMZRLVYKVRF-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007791 liquid phase Substances 0.000 claims abstract description 20
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 17
- 239000001257 hydrogen Substances 0.000 claims abstract description 17
- 239000012025 fluorinating agent Substances 0.000 claims abstract description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 29
- 238000003682 fluorination reaction Methods 0.000 claims description 22
- UIOYEIHBWQTVJC-UHFFFAOYSA-N 1-chloro-2,4-difluoro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(F)C=C1F UIOYEIHBWQTVJC-UHFFFAOYSA-N 0.000 claims description 18
- 150000001875 compounds Chemical class 0.000 claims description 18
- 239000002904 solvent Substances 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 15
- -1 alkenyl alkynyl Chemical group 0.000 claims description 9
- 239000003960 organic solvent Substances 0.000 claims description 8
- 239000012071 phase Substances 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical group [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 5
- 239000007790 solid phase Substances 0.000 claims description 5
- 150000001768 cations Chemical class 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 125000002877 alkyl aryl group Chemical group 0.000 claims description 2
- 150000001450 anions Chemical group 0.000 claims description 2
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 2
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 2
- 229910052698 phosphorus Chemical group 0.000 claims description 2
- 239000011574 phosphorus Chemical group 0.000 claims description 2
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims 1
- 229940125773 compound 10 Drugs 0.000 claims 1
- 125000000753 cycloalkyl group Chemical group 0.000 claims 1
- 125000001183 hydrocarbyl group Chemical group 0.000 claims 1
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical group C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 claims 1
- 125000003944 tolyl group Chemical group 0.000 claims 1
- 230000005501 phase interface Effects 0.000 abstract description 3
- 239000003444 phase transfer catalyst Substances 0.000 abstract description 3
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 22
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 15
- 239000011698 potassium fluoride Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 14
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 12
- 238000002360 preparation method Methods 0.000 description 12
- 239000011541 reaction mixture Substances 0.000 description 12
- 235000003270 potassium fluoride Nutrition 0.000 description 11
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- UKVIEHSSVKSQBA-UHFFFAOYSA-N methane;palladium Chemical compound C.[Pd] UKVIEHSSVKSQBA-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000012467 final product Substances 0.000 description 9
- 239000000376 reactant Substances 0.000 description 8
- 239000007858 starting material Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 6
- 239000000460 chlorine Substances 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- XKBGEWXEAPTVCK-UHFFFAOYSA-M methyltrioctylammonium chloride Chemical compound [Cl-].CCCCCCCC[N+](C)(CCCCCCCC)CCCCCCCC XKBGEWXEAPTVCK-UHFFFAOYSA-M 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 235000019198 oils Nutrition 0.000 description 6
- 238000001256 steam distillation Methods 0.000 description 6
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- 239000001632 sodium acetate Substances 0.000 description 5
- 235000017281 sodium acetate Nutrition 0.000 description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 235000019270 ammonium chloride Nutrition 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 125000000524 functional group Chemical group 0.000 description 4
- 238000004817 gas chromatography Methods 0.000 description 4
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 125000005207 tetraalkylammonium group Chemical group 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 3
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 125000001309 chloro group Chemical group Cl* 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000011737 fluorine Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004809 thin layer chromatography Methods 0.000 description 3
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000007832 Na2SO4 Substances 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 150000003983 crown ethers Chemical class 0.000 description 2
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 2
- 238000003408 phase transfer catalysis Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- HHVIBTZHLRERCL-UHFFFAOYSA-N sulfonyldimethane Chemical compound CS(C)(=O)=O HHVIBTZHLRERCL-UHFFFAOYSA-N 0.000 description 2
- AVQQQNCBBIEMEU-UHFFFAOYSA-N 1,1,3,3-tetramethylurea Chemical compound CN(C)C(=O)N(C)C AVQQQNCBBIEMEU-UHFFFAOYSA-N 0.000 description 1
- SOZFIIXUNAKEJP-UHFFFAOYSA-N 1,2,3,4-tetrafluorobenzene Chemical compound FC1=CC=C(F)C(F)=C1F SOZFIIXUNAKEJP-UHFFFAOYSA-N 0.000 description 1
- BGKIECJVXXHLDP-UHFFFAOYSA-N 1,2,3-trichloro-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Cl)C(Cl)=C1Cl BGKIECJVXXHLDP-UHFFFAOYSA-N 0.000 description 1
- HHLCSFGOTLUREE-UHFFFAOYSA-N 1,2,3-trichloro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(Cl)C(Cl)=C1 HHLCSFGOTLUREE-UHFFFAOYSA-N 0.000 description 1
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 description 1
- AJKNNUJQFALRIK-UHFFFAOYSA-N 1,2,3-trifluorobenzene Chemical compound FC1=CC=CC(F)=C1F AJKNNUJQFALRIK-UHFFFAOYSA-N 0.000 description 1
- VMAATSFMXSMKPG-UHFFFAOYSA-N 1,3-dichloro-2-fluoro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(F)C(Cl)=C1 VMAATSFMXSMKPG-UHFFFAOYSA-N 0.000 description 1
- ZPQOPVIELGIULI-UHFFFAOYSA-N 1,3-dichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1 ZPQOPVIELGIULI-UHFFFAOYSA-N 0.000 description 1
- REYPREDAEPMPDG-UHFFFAOYSA-N 1-chloro-2,3,4,5-tetrafluorobenzene Chemical compound FC1=CC(Cl)=C(F)C(F)=C1F REYPREDAEPMPDG-UHFFFAOYSA-N 0.000 description 1
- OHPIHTQPKGZTFB-UHFFFAOYSA-N 1-chloro-2,4-difluoro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=C(F)C=CC(Cl)=C1F OHPIHTQPKGZTFB-UHFFFAOYSA-N 0.000 description 1
- BFCFYVKQTRLZHA-UHFFFAOYSA-N 1-chloro-2-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1Cl BFCFYVKQTRLZHA-UHFFFAOYSA-N 0.000 description 1
- KMAQZIILEGKYQZ-UHFFFAOYSA-N 1-chloro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(Cl)=C1 KMAQZIILEGKYQZ-UHFFFAOYSA-N 0.000 description 1
- FCNHCVLYZBHAQB-UHFFFAOYSA-N 2,3,5-trichloro-5-nitrocyclohexa-1,3-diene Chemical compound ClC1(CC=C(C(=C1)Cl)Cl)[N+](=O)[O-] FCNHCVLYZBHAQB-UHFFFAOYSA-N 0.000 description 1
- CTVBVNKEMCGZDF-UHFFFAOYSA-N 2-chloro-1,3-difluoro-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(F)C(Cl)=C1F CTVBVNKEMCGZDF-UHFFFAOYSA-N 0.000 description 1
- IKDJKRZDCUNAAB-UHFFFAOYSA-N 5-chloro-2,4-difluoroaniline Chemical compound NC1=CC(Cl)=C(F)C=C1F IKDJKRZDCUNAAB-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000252095 Congridae Species 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 235000019502 Orange oil Nutrition 0.000 description 1
- 239000007868 Raney catalyst Substances 0.000 description 1
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 description 1
- 229910000564 Raney nickel Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 206010043458 Thirst Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003342 alkenyl group Chemical group 0.000 description 1
- 125000000304 alkynyl group Chemical group 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 239000000730 antalgic agent Substances 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical group [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 239000000010 aprotic solvent Substances 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical group [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Chemical group 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical group [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- VDQVEACBQKUUSU-UHFFFAOYSA-M disodium;sulfanide Chemical compound [Na+].[Na+].[SH-] VDQVEACBQKUUSU-UHFFFAOYSA-M 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000004508 fractional distillation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000005171 halobenzenes Chemical class 0.000 description 1
- GNOIPBMMFNIUFM-UHFFFAOYSA-N hexamethylphosphoric triamide Chemical compound CN(C)P(=O)(N(C)C)N(C)C GNOIPBMMFNIUFM-UHFFFAOYSA-N 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- BOVGCDDWSQCVAP-UHFFFAOYSA-N n-(5-chloro-2,4-difluorophenyl)nitramide Chemical compound [O-][N+](=O)NC1=CC(Cl)=C(F)C=C1F BOVGCDDWSQCVAP-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000010502 orange oil Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 238000006053 organic reaction Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000005292 vacuum distillation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
- C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
- C07C209/36—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/847,186 US4140719A (en) | 1977-10-31 | 1977-10-31 | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
| US05/847,187 US4294988A (en) | 1977-10-31 | 1977-10-31 | Method of preparing 2,4-difluoroaniline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE782132L IE782132L (en) | 1979-04-30 |
| IE47471B1 true IE47471B1 (en) | 1984-03-21 |
Family
ID=27126689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2132/78A IE47471B1 (en) | 1977-10-31 | 1978-10-27 | Method of preparing 2,4-difluoroaniline |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0001825B1 (enExample) |
| JP (1) | JPS54109928A (enExample) |
| DE (1) | DE2861534D1 (enExample) |
| DK (1) | DK483378A (enExample) |
| IE (1) | IE47471B1 (enExample) |
| IT (1) | IT1106051B (enExample) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2938939A1 (de) * | 1978-10-05 | 1980-04-17 | Boots Co Ltd | Verfahren zur herstellung von fluornitrobenzolen |
| EP0038465A1 (de) * | 1980-04-17 | 1981-10-28 | Hoechst Aktiengesellschaft | Verfahren zur Herstellung von 2-Trifluormethylanilin |
| FR2490634A1 (fr) * | 1980-09-25 | 1982-03-26 | Rhone Poulenc Ind | Procede de preparation de fluorobenzonitriles |
| FR2599364B1 (fr) * | 1986-05-29 | 1988-09-16 | Rhone Poulenc Spec Chim | Procede de preparation de 4-fluoroanilines a partir de 4-halogenonitrobenzenes |
| US5294742A (en) * | 1992-03-21 | 1994-03-15 | Hoechst Atkiengesellschaft | Process for preparing 3,5-difluoroaniline |
| DE59501307D1 (de) * | 1994-02-11 | 1998-02-26 | Clariant Gmbh | Verfahren zur Herstellung von Fluoranilinen |
| FR2727406A1 (fr) * | 1994-11-30 | 1996-05-31 | Rhone Poulenc Chimie | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
| AU4265396A (en) * | 1994-11-30 | 1996-06-19 | Rhone-Poulenc Chimie | Method for preparing fluoroanilines from nitrofluorobenzene compounds |
| FR2728899B1 (fr) * | 1994-12-30 | 1997-03-28 | Rhone Poulenc Chimie | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
| US8907146B2 (en) * | 2013-02-04 | 2014-12-09 | Honeywell International Inc. | Process for the preparation of 1-chloro-3,3,3-trifluoropropene using a phase transfer catalyst |
| CN115650859A (zh) * | 2022-10-21 | 2023-01-31 | 利尔化学股份有限公司 | 一种2,4-二氟苯胺的制备方法 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL292261A (enExample) * | 1962-05-11 | |||
| CA952540A (en) * | 1970-02-09 | 1974-08-06 | Ronnie D. Gordon | Preparation of alkyl halides |
| GB1360327A (en) * | 1972-11-13 | 1974-07-17 | Daikin Ind Ltd | Process for the nuclear fluorination of a compound having a benzene ring |
| US3900519A (en) * | 1973-06-11 | 1975-08-19 | Olin Corp | Process for preparing para-fluoroanilines |
| GB1433517A (en) * | 1973-08-02 | 1976-04-28 | Shell Int Research | Preparation of fluoroanilines |
-
1978
- 1978-10-27 IE IE2132/78A patent/IE47471B1/en not_active IP Right Cessation
- 1978-10-27 IT IT51691/78A patent/IT1106051B/it active
- 1978-10-30 DK DK483378A patent/DK483378A/da unknown
- 1978-10-31 EP EP78101266A patent/EP0001825B1/en not_active Expired
- 1978-10-31 DE DE7878101266T patent/DE2861534D1/de not_active Expired
- 1978-10-31 JP JP13337078A patent/JPS54109928A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| IT7851691A0 (it) | 1978-10-27 |
| EP0001825B1 (en) | 1982-01-13 |
| DE2861534D1 (en) | 1982-02-25 |
| DK483378A (da) | 1979-05-01 |
| IT1106051B (it) | 1985-11-11 |
| EP0001825A1 (en) | 1979-05-16 |
| JPS54109928A (en) | 1979-08-29 |
| IE782132L (en) | 1979-04-30 |
| JPS6210219B2 (enExample) | 1987-03-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |