FR2727406A1 - Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres - Google Patents
Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres Download PDFInfo
- Publication number
- FR2727406A1 FR2727406A1 FR9414395A FR9414395A FR2727406A1 FR 2727406 A1 FR2727406 A1 FR 2727406A1 FR 9414395 A FR9414395 A FR 9414395A FR 9414395 A FR9414395 A FR 9414395A FR 2727406 A1 FR2727406 A1 FR 2727406A1
- Authority
- FR
- France
- Prior art keywords
- hydrogenation
- chloro
- difluoronitrobenzene
- reaction
- difluoroaniline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000008569 process Effects 0.000 title claims abstract description 24
- MGNPLIACIXIYJE-UHFFFAOYSA-N n-fluoroaniline Chemical compound FNC1=CC=CC=C1 MGNPLIACIXIYJE-UHFFFAOYSA-N 0.000 title claims description 3
- 238000009903 catalytic hydrogenation reaction Methods 0.000 claims abstract description 25
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 238000005984 hydrogenation reaction Methods 0.000 claims description 48
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 46
- 238000006243 chemical reaction Methods 0.000 claims description 45
- -1 atoms halogen Chemical class 0.000 claims description 39
- 229910052739 hydrogen Inorganic materials 0.000 claims description 26
- 239000001257 hydrogen Substances 0.000 claims description 26
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 24
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 19
- 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 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 15
- 239000012429 reaction media Substances 0.000 claims description 15
- CEPCPXLLFXPZGW-UHFFFAOYSA-N 2,4-difluoroaniline Chemical compound NC1=CC=C(F)C=C1F CEPCPXLLFXPZGW-UHFFFAOYSA-N 0.000 claims description 13
- 238000006396 nitration reaction Methods 0.000 claims description 13
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 13
- PBKONEOXTCPAFI-UHFFFAOYSA-N 1,2,4-trichlorobenzene Chemical compound ClC1=CC=C(Cl)C(Cl)=C1 PBKONEOXTCPAFI-UHFFFAOYSA-N 0.000 claims description 12
- RJXOVESYJFXCGI-UHFFFAOYSA-N 2,4-difluoro-1-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(F)C=C1F RJXOVESYJFXCGI-UHFFFAOYSA-N 0.000 claims description 10
- KQOIBXZRCYFZSO-UHFFFAOYSA-N 3,5-difluoroaniline Chemical compound NC1=CC(F)=CC(F)=C1 KQOIBXZRCYFZSO-UHFFFAOYSA-N 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 229910017604 nitric acid Inorganic materials 0.000 claims description 9
- 230000000750 progressive effect Effects 0.000 claims description 9
- BNTNWQPIBPBJOO-UHFFFAOYSA-N 3-chloro-2,4-difluoroaniline Chemical compound NC1=CC=C(F)C(Cl)=C1F BNTNWQPIBPBJOO-UHFFFAOYSA-N 0.000 claims description 8
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 8
- 125000001153 fluoro group Chemical group F* 0.000 claims description 7
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Substances [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 claims description 7
- 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 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 claims description 6
- RELMFMZEBKVZJC-UHFFFAOYSA-N 1,2,3-trichlorobenzene Chemical compound ClC1=CC=CC(Cl)=C1Cl RELMFMZEBKVZJC-UHFFFAOYSA-N 0.000 claims description 5
- VGDZGWPMCGMBEO-UHFFFAOYSA-N 2,4-dichloro-1,5-difluoro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=C(Cl)C(F)=CC(F)=C1Cl VGDZGWPMCGMBEO-UHFFFAOYSA-N 0.000 claims description 5
- LXZZOYWXUAYAKR-UHFFFAOYSA-N 3-chloro-2,4-difluoro-6-nitroaniline Chemical compound NC1=C(F)C(Cl)=C(F)C=C1[N+]([O-])=O LXZZOYWXUAYAKR-UHFFFAOYSA-N 0.000 claims description 5
- 125000005843 halogen group Chemical group 0.000 claims description 5
- IMCCZKHIPVEUEI-UHFFFAOYSA-N n,n-difluoroaniline Chemical compound FN(F)C1=CC=CC=C1 IMCCZKHIPVEUEI-UHFFFAOYSA-N 0.000 claims description 5
- 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 4
- 125000003277 amino group Chemical group 0.000 claims description 4
- 150000001491 aromatic compounds Chemical class 0.000 claims description 4
- 239000002798 polar solvent Substances 0.000 claims description 4
- 239000011698 potassium fluoride Substances 0.000 claims description 4
- 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 description 3
- RBAHXNSORRGCQA-UHFFFAOYSA-N 1-chloro-2-fluoro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(Cl)=C1F RBAHXNSORRGCQA-UHFFFAOYSA-N 0.000 claims description 3
- JMGWWGJSSUQAFX-UHFFFAOYSA-N 2,4-dichloro-1,3-difluoro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(F)=C(Cl)C(F)=C1Cl JMGWWGJSSUQAFX-UHFFFAOYSA-N 0.000 claims description 3
- WRSJHFULBMFNKF-UHFFFAOYSA-N 3-chloro-4,6-difluoro-2-nitroaniline Chemical compound NC1=C(C(=C(C=C1F)F)Cl)[N+](=O)[O-] WRSJHFULBMFNKF-UHFFFAOYSA-N 0.000 claims description 3
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-N Nitrous acid Chemical compound ON=O IOVCWXUNBOPUCH-UHFFFAOYSA-N 0.000 claims description 3
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 3
- 229940045803 cuprous chloride Drugs 0.000 claims description 3
- 235000003270 potassium fluoride Nutrition 0.000 claims description 3
- POXQFRZRCPFLTA-UHFFFAOYSA-N 1,2-dichloro-3,4-difluoro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(Cl)C(F)=C1F POXQFRZRCPFLTA-UHFFFAOYSA-N 0.000 claims description 2
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims description 2
- LQNUZADURLCDLV-IDEBNGHGSA-N nitrobenzene Chemical group [O-][N+](=O)[13C]1=[13CH][13CH]=[13CH][13CH]=[13CH]1 LQNUZADURLCDLV-IDEBNGHGSA-N 0.000 claims description 2
- IKDJKRZDCUNAAB-UHFFFAOYSA-N 5-chloro-2,4-difluoroaniline Chemical compound NC1=CC(Cl)=C(F)C=C1F IKDJKRZDCUNAAB-UHFFFAOYSA-N 0.000 claims 2
- 229910052736 halogen Inorganic materials 0.000 claims 1
- 239000003880 polar aprotic solvent Substances 0.000 claims 1
- 230000003197 catalytic effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000007327 hydrogenolysis reaction Methods 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
- 239000000047 product Substances 0.000 description 16
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 12
- 125000001309 chloro group Chemical group Cl* 0.000 description 12
- 239000002904 solvent Substances 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 239000006227 byproduct Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910052763 palladium Inorganic materials 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- 150000001412 amines Chemical class 0.000 description 5
- 150000001448 anilines Chemical class 0.000 description 5
- 229910052801 chlorine Inorganic materials 0.000 description 5
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 5
- 238000006298 dechlorination reaction Methods 0.000 description 5
- 238000004821 distillation Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 229910001220 stainless steel Inorganic materials 0.000 description 4
- 239000010935 stainless steel Substances 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 3
- 239000007868 Raney catalyst Substances 0.000 description 3
- 229910000564 Raney nickel Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 150000003931 anilides Chemical class 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000012456 homogeneous solution Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002828 nitro derivatives Chemical class 0.000 description 3
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-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
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Chemical compound [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- VBEGHXKAFSLLGE-UHFFFAOYSA-N n-phenylnitramide Chemical class [O-][N+](=O)NC1=CC=CC=C1 VBEGHXKAFSLLGE-UHFFFAOYSA-N 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229910052697 platinum Inorganic materials 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000001577 simple distillation Methods 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- IXIJRPBFPLESEI-UHFFFAOYSA-N 1,2-difluoro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(F)=C1F IXIJRPBFPLESEI-UHFFFAOYSA-N 0.000 description 1
- OFQRRFRIDGZHSC-UHFFFAOYSA-N 1-chloro-2,3-difluoro-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(Cl)C(F)=C1F OFQRRFRIDGZHSC-UHFFFAOYSA-N 0.000 description 1
- FTZQXOJYPFINKJ-UHFFFAOYSA-N 2-fluoroaniline Chemical compound NC1=CC=CC=C1F FTZQXOJYPFINKJ-UHFFFAOYSA-N 0.000 description 1
- KRZCOLNOCZKSDF-UHFFFAOYSA-N 4-fluoroaniline Chemical compound NC1=CC=C(F)C=C1 KRZCOLNOCZKSDF-UHFFFAOYSA-N 0.000 description 1
- VJTMOPOTNPCVIC-UHFFFAOYSA-N 5-chloro-1,3-difluoro-6-nitrocyclohexa-2,4-dien-1-amine Chemical compound NC1(C(C(=CC(=C1)F)Cl)[N+](=O)[O-])F VJTMOPOTNPCVIC-UHFFFAOYSA-N 0.000 description 1
- CVICEEPAFUYBJG-UHFFFAOYSA-N 5-chloro-2,2-difluoro-1,3-benzodioxole Chemical group C1=C(Cl)C=C2OC(F)(F)OC2=C1 CVICEEPAFUYBJG-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000000297 Sandmeyer reaction Methods 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- DSVGQVZAZSZEEX-UHFFFAOYSA-N [C].[Pt] Chemical compound [C].[Pt] DSVGQVZAZSZEEX-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 230000010933 acylation Effects 0.000 description 1
- 238000005917 acylation reaction Methods 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 229940051881 anilide analgesics and antipyretics Drugs 0.000 description 1
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 description 1
- 150000001555 benzenes Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229940126601 medicinal product Drugs 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 150000005181 nitrobenzenes Chemical class 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 229920000767 polyaniline Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- CESKLHVYGRFMFP-UHFFFAOYSA-N sulfonmethane Chemical compound CCS(=O)(=O)C(C)(C)S(=O)(=O)CC CESKLHVYGRFMFP-UHFFFAOYSA-N 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9414395A FR2727406A1 (fr) | 1994-11-30 | 1994-11-30 | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
| AU42653/96A AU4265396A (en) | 1994-11-30 | 1995-11-22 | Method for preparing fluoroanilines from nitrofluorobenzene compounds |
| AT95941159T ATE177731T1 (de) | 1994-11-30 | 1995-11-29 | Verfahren zur herstellung von fluoroanilinen aus fluoronitrobenzolen |
| DE69508428T DE69508428T2 (de) | 1994-11-30 | 1995-11-29 | Verfahren zur herstellung von fluoroanilinen aus fluoronitrobenzolen |
| EP98113371A EP0875497A3 (fr) | 1994-11-30 | 1995-11-29 | Procédé de préparation de fluoroanilines à partir de composés benzéniques fluorés nitrés |
| US08/849,144 US5856577A (en) | 1994-11-30 | 1995-11-29 | Process for the preparation of fluoroanilines from fluorinated nitrated benzene compounds |
| PCT/FR1995/001575 WO1996016926A1 (fr) | 1994-11-30 | 1995-11-29 | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
| EP95941159A EP0794936B1 (fr) | 1994-11-30 | 1995-11-29 | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
| JP8518338A JPH10509969A (ja) | 1994-11-30 | 1995-11-29 | フッ素化ニトロ化ベンゼン化合物からのフルオロアニリンの製造法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9414395A FR2727406A1 (fr) | 1994-11-30 | 1994-11-30 | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2727406A1 true FR2727406A1 (fr) | 1996-05-31 |
| FR2727406B1 FR2727406B1 (enExample) | 1997-02-14 |
Family
ID=9469335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9414395A Granted FR2727406A1 (fr) | 1994-11-30 | 1994-11-30 | Procede de preparation de fluoroanilines a partir de composes benzeniques fluores nitres |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2727406A1 (enExample) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140719A (en) * | 1977-10-31 | 1979-02-20 | Merck & Co., Inc. | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
| EP0001825A1 (en) * | 1977-10-31 | 1979-05-16 | Merck & Co. Inc. | Method of preparing 2,4-difluoroaniline |
| DD154214A1 (de) * | 1980-11-07 | 1982-03-03 | Wolfgang Lambrecht | Verfahren zur hydrierung von nitrobenzol |
| EP0562435A1 (de) * | 1992-03-21 | 1993-09-29 | Hoechst Aktiengesellschaft | Verfahren zur Herstellung von 3,5-Difluoranilin |
-
1994
- 1994-11-30 FR FR9414395A patent/FR2727406A1/fr active Granted
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4140719A (en) * | 1977-10-31 | 1979-02-20 | Merck & Co., Inc. | Solid-liquid phase transfer catalysis improved method of preparing 2,4-difluoroaniline |
| EP0001825A1 (en) * | 1977-10-31 | 1979-05-16 | Merck & Co. Inc. | Method of preparing 2,4-difluoroaniline |
| DD154214A1 (de) * | 1980-11-07 | 1982-03-03 | Wolfgang Lambrecht | Verfahren zur hydrierung von nitrobenzol |
| EP0562435A1 (de) * | 1992-03-21 | 1993-09-29 | Hoechst Aktiengesellschaft | Verfahren zur Herstellung von 3,5-Difluoranilin |
| US5294742A (en) * | 1992-03-21 | 1994-03-15 | Hoechst Atkiengesellschaft | Process for preparing 3,5-difluoroaniline |
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| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 120, no. 19, 9 May 1994, Columbus, Ohio, US; abstract no. 244212h, MASON, JAMES ET AL.: "Synthesis of 2,4-difluoroaniline and 1,3-difluorobenzene from 1,2,4-trichlorobenzene" page 956; column 2; * |
| DATABASE WPI Week 8231, Derwent World Patents Index; AN 82-63760e * |
| SYNTH. COMMUN., vol. 24, no. 4, pages 529 - 532 * |
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|---|---|
| FR2727406B1 (enExample) | 1997-02-14 |
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