BE497660A - - Google Patents
Info
- Publication number
- BE497660A BE497660A BE497660DA BE497660A BE 497660 A BE497660 A BE 497660A BE 497660D A BE497660D A BE 497660DA BE 497660 A BE497660 A BE 497660A
- Authority
- BE
- Belgium
- Prior art keywords
- benzene
- fluoro
- nitro
- chloro
- ring
- Prior art date
Links
- -1 fluoro chlorine nitro aromatic hydrocarbon Chemical class 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 125000001153 fluoro group Chemical group F* 0.000 claims description 15
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 15
- 125000003118 aryl group Chemical group 0.000 claims description 14
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 13
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 12
- 229910052731 fluorine Inorganic materials 0.000 claims description 11
- 230000000855 fungicidal effect Effects 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 10
- 150000001875 compounds Chemical class 0.000 claims description 10
- 239000011737 fluorine Substances 0.000 claims description 10
- 239000000417 fungicide Substances 0.000 claims description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 8
- 241000233866 Fungi Species 0.000 claims description 7
- 238000006396 nitration reaction Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- FPZHPJDKFTYJCJ-UHFFFAOYSA-N 1,2,3-trichloro-4-fluoro-5,6-dinitrobenzene Chemical compound ClC1=C(C(=C(C(=C1[N+](=O)[O-])[N+](=O)[O-])F)Cl)Cl FPZHPJDKFTYJCJ-UHFFFAOYSA-N 0.000 claims description 6
- BJVGXXXWPQLLLP-UHFFFAOYSA-N 1,2,3-trichloro-4-fluorobenzene Chemical compound FC1=CC=C(Cl)C(Cl)=C1Cl BJVGXXXWPQLLLP-UHFFFAOYSA-N 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000011368 organic material Substances 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 5
- 150000001555 benzenes Chemical class 0.000 claims description 4
- PYLWMHQQBFSUBP-UHFFFAOYSA-N monofluorobenzene Chemical compound FC1=CC=CC=C1 PYLWMHQQBFSUBP-UHFFFAOYSA-N 0.000 claims description 4
- 229910017604 nitric acid Inorganic materials 0.000 claims description 4
- 125000004432 carbon atom Chemical group C* 0.000 claims description 3
- 238000005660 chlorination reaction Methods 0.000 claims description 3
- 238000006193 diazotization reaction Methods 0.000 claims description 3
- 230000000802 nitrating effect Effects 0.000 claims description 3
- RSIATOGAISPHNH-UHFFFAOYSA-N 1,2-dichloro-3-fluoro-4,5-dinitrobenzene Chemical compound ClC=1C(=C(C(=C(C1)[N+](=O)[O-])[N+](=O)[O-])F)Cl RSIATOGAISPHNH-UHFFFAOYSA-N 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims 4
- 239000004480 active ingredient Substances 0.000 claims 3
- NPXCSDPOOVOVDQ-UHFFFAOYSA-N 1,2-dichloro-3-fluorobenzene Chemical compound FC1=CC=CC(Cl)=C1Cl NPXCSDPOOVOVDQ-UHFFFAOYSA-N 0.000 claims 2
- QBFVQRDWLOVMRD-UHFFFAOYSA-N 1-chloro-2,3-difluoro-4,5-dinitrobenzene Chemical compound ClC=1C(=C(C(=C(C1)[N+](=O)[O-])[N+](=O)[O-])F)F QBFVQRDWLOVMRD-UHFFFAOYSA-N 0.000 claims 2
- ZBNCSBMIRFHJEL-UHFFFAOYSA-N 1-chloro-2,3-difluorobenzene Chemical compound FC1=CC=CC(Cl)=C1F ZBNCSBMIRFHJEL-UHFFFAOYSA-N 0.000 claims 2
- RUSRQTDJMAKLRM-UHFFFAOYSA-N 1-chloro-2-fluoro-3,4-dinitrobenzene Chemical compound ClC1=C(C(=C(C=C1)[N+](=O)[O-])[N+](=O)[O-])F RUSRQTDJMAKLRM-UHFFFAOYSA-N 0.000 claims 2
- NJZSQTMICFLABM-UHFFFAOYSA-N 2-chloro-1-fluoro-3-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC(F)=C1Cl NJZSQTMICFLABM-UHFFFAOYSA-N 0.000 claims 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 2
- ACHZGYYYBKEPBI-UHFFFAOYSA-M benzenediazonium;fluoride Chemical group [F-].N#[N+]C1=CC=CC=C1 ACHZGYYYBKEPBI-UHFFFAOYSA-M 0.000 claims 2
- 238000000354 decomposition reaction Methods 0.000 claims 2
- OCJBOOLMMGQPQU-UHFFFAOYSA-N 1,4-dichlorobenzene Chemical compound ClC1=CC=C(Cl)C=C1 OCJBOOLMMGQPQU-UHFFFAOYSA-N 0.000 claims 1
- 125000004429 atom Chemical group 0.000 claims 1
- 239000007795 chemical reaction product Substances 0.000 claims 1
- 229940117389 dichlorobenzene Drugs 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- CIZVQWNPBGYCGK-UHFFFAOYSA-N benzenediazonium Chemical compound N#[N+]C1=CC=CC=C1 CIZVQWNPBGYCGK-UHFFFAOYSA-N 0.000 description 2
- WDECIBYCCFPHNR-UHFFFAOYSA-N chrysene Chemical compound C1=CC=CC2=CC=C3C4=CC=CC=C4C=CC3=C21 WDECIBYCCFPHNR-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002917 insecticide Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- XDIPOBQVBXLETD-UHFFFAOYSA-N 1,2,3,4-tetrachloro-5,6-dinitrobenzene Chemical compound [O-][N+](=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1[N+]([O-])=O XDIPOBQVBXLETD-UHFFFAOYSA-N 0.000 description 1
- XXBIFZACLFQELX-UHFFFAOYSA-N 1,2,3,4-tetrachloro-5-fluoro-6-nitrobenzene Chemical compound [O-][N+](=O)C1=C(F)C(Cl)=C(Cl)C(Cl)=C1Cl XXBIFZACLFQELX-UHFFFAOYSA-N 0.000 description 1
- AKQZAPAZPCWKJI-UHFFFAOYSA-N 1,2,3-trichloro-4,5-dinitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(Cl)C(Cl)=C1[N+]([O-])=O AKQZAPAZPCWKJI-UHFFFAOYSA-N 0.000 description 1
- SOOFNNKJQPWRHM-UHFFFAOYSA-N 1,2,3-trichloro-4-fluoro-5-nitrobenzene Chemical compound [O-][N+](=O)C1=CC(Cl)=C(Cl)C(Cl)=C1F SOOFNNKJQPWRHM-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
- ARCACZWMYGILNI-UHFFFAOYSA-N 1,2,3-trifluoro-4-nitrobenzene Chemical compound [O-][N+](=O)C1=CC=C(F)C(F)=C1F ARCACZWMYGILNI-UHFFFAOYSA-N 0.000 description 1
- RILZRCJGXSFXNE-UHFFFAOYSA-N 2-[4-(trifluoromethoxy)phenyl]ethanol Chemical compound OCCC1=CC=C(OC(F)(F)F)C=C1 RILZRCJGXSFXNE-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- XHEFKGVOMGTDCQ-UHFFFAOYSA-N [O-][N+](C(C1=CC=CC=C1C(Cl)=C1F)=C1F)=O Chemical compound [O-][N+](C(C1=CC=CC=C1C(Cl)=C1F)=C1F)=O XHEFKGVOMGTDCQ-UHFFFAOYSA-N 0.000 description 1
- 150000001454 anthracenes Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- CLRSZXHOSMKUIB-UHFFFAOYSA-M benzenediazonium chloride Chemical compound [Cl-].N#[N+]C1=CC=CC=C1 CLRSZXHOSMKUIB-UHFFFAOYSA-M 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- HIFJUMGIHIZEPX-UHFFFAOYSA-N sulfuric acid;sulfur trioxide Chemical compound O=S(=O)=O.OS(O)(=O)=O HIFJUMGIHIZEPX-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- XQTLDIFVVHJORV-UHFFFAOYSA-N tecnazene Chemical compound [O-][N+](=O)C1=C(Cl)C(Cl)=CC(Cl)=C1Cl XQTLDIFVVHJORV-UHFFFAOYSA-N 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
- C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
- C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
-
- 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
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
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PERFECTIONNEMENTS AUX PROCEDES DE PREPARATION DE COMPOSES AROMATIQUES FLUOROCHLORO NITRES.
La présente invention est relative à un procédé de préparation d'une classe de composés aromatiques fluoro-chloro nitrés et aux produits - industriels nouveaux constituée par ces composés et les nouvelles composi- tions les contenant, Elle concerne également un procédé de protection des matières organiques contre l'attaque des champignons par l'emploi de ces nouvelles compositions.
Les nouvelles compositions selon l'invention sont des composés aromatiques chlore nitrés contenant 4 ou davantage de groupements chloro, fluoro et nitro dans le noyau aromatique et pas moins d'un de chacun de ces groupes dans le noyau aromatique; on peut également substituer d'au- tres groupes sur le noyau.
Des exemples de composés aromatiques à partir desquels on peut préparer les composés selon l'invention sont le benzène, le naphtalène, 1,' anthracènes le phénanthrène et le chrysène. On donne maintenant une lis- te représentative des composés selon l'invention-,
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dichlorofluoroni trpbenzène chlorodifluoronitrobenzène chlorofluorodinitrobenzène chlorofluoronitrobrc.m.obenzène chlorodifluoronitroétbylbenzène chlorvdifluorod..n.trobenzène dichlorofluorodinitrobenzene dichlorodifluoronitrobenzène c'n:
Lorodifluorod.trophéno3. tr.chlorofluoron.txobenz ene Sulfure de dich7.orof.uorod3n-.trophér.lm.étk.rle tétrachlorofluoronitrobenzène trlchlorodifluoronitrobenzène dichlorotrifluoronitrobenzène chlorotétrafluoronitrobenzène
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triahlorafluorcdin±trobenzène
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dichlorodifluorodinitrobenzène
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monoohiorotrifluorodinitrobenzène chlorodifluoronitronaphtalène ahloro±luorcdinitroaétbyInaçhtalène trichlorofluoronitroanthracène dichlorodifluorodinitrochlysène bromodichlorofüoronitrophénantbrène
On prépare les composés selon l'invention par une combinaison ap- propriée de réactions comprenant la chloration, la nitration, l'introduc- tion de fluor sur le noyau aromatique par des processus de diazotation.
L'ordre de réalisation de ces réactions peut être modifié selon le produit désiré. Le processus suivant pour la synthèse du trichlorofluoro dinitroben- zène peut être considéré comme le type de préparation de ces composés.
On diazote de l'aniline en solution dans l'acide fluoroborique en fluoborate de benzène diazonium avec du nitrite de sodium. On peut également préparer le fluoborate de benzène diazonium en ajoutant du fluoborate de sodium à une solution de chlorure de benzène diazonium préparée en diazotant de l'aniline dans l'acide chlorhydrique. On sépare le précipité de chlorobo-
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rate de benzène 4iazonirm, on le sèche et on le décompose par la chaleur en fluorobenzène. On chlore le fluorobenzène en présence de chlorure ferrique en un mélange de mono-di- et tri-chloro fluorobenzène. On rectifie ce mélan- ge et on soumet les produits obtenus à une nitration.
On prépare un acide mixte (18 % d' acide nitrique, 80 % d'acide sulfurique), à partir de quantités appropriées d'acide sulfurique concentré, d'acide sulfurique fumant et d'a- cide nitrique fumant. A ce mélange nitrant maintenu à une température de 60-65 on ajoute du trichloro fluoro benzène et on élève alors la tempéra- ture à 90 pendant 2 heures. A la fin de la réaction on ajoute lentement de l'eau en refroidissant et en agitant et l'on sépare la couche organique.
On lave la couche organique avec une solution 'de bicarbonate de sodium, on la sèche et on la rectifie. On distille le produi- le trichlorofluoro ben- zène - à une température de 123 sous une pression absolue de 9 mm de mer- cure. On traite le produit mononitré résultant à une température de 90-95 avec un acide nitrant contenant approximativement 10 % d'acide nitrique et 90 % d'acide sulfurique. Le produit de cette nitration est récupéré comme précédemment, distillé à une température de 142-153 sous une pression abso- lue de 7 mm de mercure,puis recristallisé dans le méthanol. On établit l'identité de cette matière avec le trichlorofluoro dinitrobenzène par ana- lyse chimique du produit final ainsi que des divers intermédiaires.
L'attaque des champignons sur les matières organiques tels que les textiles, le cuir, les vieux meubles, la chevelure, les plumes, lés se- mences, les plantes, les teintures, les vernis causent de nombreux dommages.
La moisissure des vêtements et des chaussures, par exemple dans les zones d'humidité sont'responsables de grandes pertes de ces objets. L'expérience militaire de l'endommagement du matériel de campement et 'd'autres sous les tropiques est bien connue, ainsi que les expériences domestiques avec les
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taches sur les meubles, la mauvaise geimination des semences et la crois- sance de champignons sur les surfaces peintes. Les composés selon l'inven- tion sont particulièrement efficaces pour combattre les dommages dus à la croissance des champignons.
Parmi les théories de l'action de divers "pesticides" halogénés, on peut citer la théorie selon laquelle la toxicité est liée à la facilité de scission de l'hydracide halogéné, par hydrolyse ou par autre attaque chi- mique. Sur cette base on aurait cru que les composés du fluor, en raison de leur plus grande stabilité par rapport à celle des autres composés halo- génés seraient mains toxiques envers les bactéries, les insectes et les champignons, etc,. Au contraire de ce que l'on aurait pu prévoir on a trou- vé que le fluor est un'constituant particulièrement désirable dans les òn- gicides, en raison de certaines combinaisons avec d'autres éléments, selon l'invention.
L'effet du fluor par rapport aux autres halogènes comme consti- tuants à la place de l'hydrogène dans les agents toxiques est clairement
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montré dans le tableau suivant des résultats obtenus par le test standard de stérilisation du sol pour la protection des textiles contre la moisissure.
PROTECTION CONTRE LE MILDEW
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<tb> Composé <SEP> utilisé <SEP> Semaines <SEP> de <SEP> Protection <SEP> obte-
<tb>
<tb> nues
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<tb>
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<tb> 1 <SEP> échantillon <SEP> de <SEP> contrôle
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2 richlorod3.n.trobenzêne 3 Tétrachlorodinitrobenzène 1 4 Bronotriehlorodinitrobenzène 5 Trichlorofluorodinitrobenzene 2S 6 Dichlorofluorodinitrobenzene 10 7 Ghiorodifluorodinitrobenzene 9
Si on se reporte à ce tableau on notera que tandis que la substi- tution de l'atome d'hydrogène dans le trichloro dinitro benzène par soit le chlore, soit le brome, entraîne une diminution dans l'effet fongicide; la substitution par le fluor entraîne une augmentation correspondante.
Une autre confirmation de l'effet avantageux du fluor est donné par des résultats de tests compares de stérilisation du sol, avec le tétrachloro nitro benzène et le trichloro fluoro nitro benzène; le premier donne une pro- tection pour seulement la moitié de temps par rapport au second dans lequel l'atome de chlore est remplace par un atome de fluor.
Bien que l'effet avantageux du fluor soit ainsi clairement montré, on ne peut pas affirmer que la simple introduction du fluor dans un noyau aro- matique entraîne un composé qui fonctionnerait comme un bon insecticide. Par exemple le trichloronitro benzène donne une bonne protection contre la moisis- sure pendant quatre semaines, tandis que le trifluoro nitro benzène ne donne une protection que pour une semaine. Cependant quand on introduit du fluor dans un noyau benzénique contenant du chlore et des groupes nitrés comme se- lon l'invention on obtient des fongicides.
On peut utiliser avantageusement les supports suivants, pour les
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matières fongicides; le carbone, le silice, le flfiltrolll, la terre à diato- mées, la terre de Fuller, le talc et diverses argiles naturelles ou traitées aussi bien que d'autres insecticides tels que le soufre. Des solutions de fongicide dans le kérosène, et diverses huiles hydro carburées ou solvants tels que des cétones ou les hydrocarbures halogénés peuvent également être utilisés.
REVENDICATIONS.
1. Procédé de préparation de composés fluoro chloro nitro aromati- ques, consistant à introduire un ou plusieurs atomes de fluor dans un noyau aromatique à 6 à 18 atomes de carbone par l'intermédiaire du fluorure ou du fluo-borate de diazonium, à introduire un ou plusieurs atomes de chlore dans le noyau benzénique par chloration substitutive du noyau aromatique fluoré et à ajouter suffisamment de groupes nitrés pour porter le nombre total de groupes fluoro., chloro et nitro à au moins 4, par nitration du composé chle- ro fluoro précédent.
**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.
<Desc / Clms Page number 1>
IMPROVEMENTS IN PROCESSES FOR THE PREPARATION OF FLUOROCHLORO NITRES AROMATIC COMPOUNDS.
The present invention relates to a process for the preparation of a class of fluoro-chloro-nitro aromatic compounds and to new industrial products consisting of these compounds and the new compositions containing them. It also relates to a process for the protection of organic materials. against the attack of fungi by the use of these new compositions.
The new compositions according to the invention are chlorine nitrated aromatic compounds containing 4 or more chloro, fluoro and nitro groups in the aromatic ring and not less than one of each of these groups in the aromatic ring; other groups can also be substituted on the ring.
Examples of aromatic compounds from which the compounds according to the invention can be prepared are benzene, naphthalene, 1, anthracenes, phenanthrene and chrysene. A representative list of the compounds according to the invention is now given.
EMI1.1
dichlorofluoroni trpbenzene chlorodifluoronitrobenzene chlorofluorodinitrobenzene chlorofluoronitrobrc.m.obenzene chlorodifluoronitroétbylbenzene chlorvdifluorod..n.trobenzene dichlorofluorodinitrobenzene dichlorodifluoronitrobenzene:
Lorodifluorod.tropheno3. tr.chlorofluoron.txobenz ene Dich7.orof.uorod3n-.trophér.lm.étk.rle tetrachlorofluoronitrobenzene trlchlorodifluoronitrobenzene dichlorotrifluoronitrobenzene chlorotetrafluoronitrobenzene sulfide
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triahlorafluorcdin ± trobenzene
<Desc / Clms Page number 2>
dichlorodifluorodinitrobenzene
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monoohiorotrifluorodinitrobenzene chlorodifluoronitronaphthalene ahloro ± luorcdinitroaétbyInaethtalene trichlorofluoronitroanthracene dichlorodifluorodinitrochlysene bromodichlorofüoronitrophénantbrene
The compounds according to the invention are prepared by a suitable combination of reactions comprising chlorination, nitration, the introduction of fluorine to the aromatic ring by diazotization processes.
The order of carrying out these reactions can be modified according to the desired product. The following process for the synthesis of trichlorofluoro dinitrobenzene can be considered as the type of preparation of these compounds.
Aniline dissolved in fluoroboric acid is dinitrogenated into benzene diazonium fluoborate with sodium nitrite. Benzene diazonium fluoborate can also be prepared by adding sodium fluoborate to a solution of benzene diazonium chloride prepared by diazotizing aniline in hydrochloric acid. The precipitate of chlorobo-
EMI2.2
4iazonirm benzene spleen, dried and decomposed by heat to fluorobenzene. Fluorobenzene is chlorinated in the presence of ferric chloride to a mixture of mono-di- and tri-chloro fluorobenzene. This mixture is rectified and the products obtained are subjected to nitration.
A mixed acid (18% nitric acid, 80% sulfuric acid) is prepared from appropriate amounts of concentrated sulfuric acid, fuming sulfuric acid and fuming nitric acid. To this nitrating mixture maintained at a temperature of 60-65 is added trichloro fluoro benzene and the temperature is then raised to 90 for 2 hours. At the end of the reaction water is added slowly with cooling and stirring and the organic layer is separated.
The organic layer is washed with sodium bicarbonate solution, dried and rectified. The trichlorofluoro benzene product is distilled off at a temperature of 123 under an absolute pressure of 9 mm of mercury. The resulting mononitrated product is treated at a temperature of 90-95 with a nitrating acid containing approximately 10% nitric acid and 90% sulfuric acid. The product of this nitration is recovered as above, distilled at a temperature of 142-153 under an absolute pressure of 7 mm of mercury, then recrystallized from methanol. The identity of this material is established with trichlorofluoro dinitrobenzene by chemical analysis of the final product as well as of the various intermediates.
The attack of fungi on organic materials such as textiles, leather, old furniture, hair, feathers, seeds, plants, dyes and varnishes causes a great deal of damage.
Mildew of clothes and shoes, for example in damp areas, are responsible for great losses of these objects. Military experience with damaging camping and other equipment in the tropics is well known, as are domestic experiences with
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stains on furniture, poor seed disposal and fungus growth on painted surfaces. The compounds according to the invention are particularly effective in combating damage due to the growth of fungi.
Among the theories of the action of various halogenated "pesticides", there may be mentioned the theory that toxicity is related to the ease of cleavage of the halogenated hydracid, by hydrolysis or by other chemical attack. On this basis it would have been believed that fluorine compounds, because of their greater stability compared to that of other halogenated compounds, would be toxic to bacteria, insects and fungi, etc. Contrary to what might have been expected, fluorine has been found to be a particularly desirable constituent in ingicides, owing to certain combinations with other elements, according to the invention.
The effect of fluorine relative to other halogens as constituents in place of hydrogen in toxic agents is clearly
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shown in the following table of the results obtained by the standard soil sterilization test for the protection of textiles against mold.
MILDEW PROTECTION
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<tb> Compound <SEP> used <SEP> Weeks <SEP> of <SEP> Protection <SEP> obtained
<tb>
<tb> naked
<tb>
<tb>
<tb>
<tb> 1 <SEP> sample <SEP> of <SEP> control
<tb>
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2 richlorod3.n.trobenzene 3 Tetrachlorodinitrobenzene 1 4 Bronotriehlorodinitrobenzene 5 Trichlorofluorodinitrobenzene 2S 6 Dichlorofluorodinitrobenzene 10 7 Ghiorodifluorodinitrobenzene 9
If reference is made to this table, it will be noted that while the substitution of the hydrogen atom in trichloro dinitro benzene by either chlorine or bromine results in a decrease in the fungicidal effect; fluorine substitution results in a corresponding increase.
Another confirmation of the advantageous effect of fluorine is given by the results of comparative soil sterilization tests with tetrachloro nitro benzene and trichloro fluoro nitro benzene; the first gives protection for only half the time compared to the second in which the chlorine atom is replaced by a fluorine atom.
Although the beneficial effect of fluorine is thus clearly shown, it cannot be said that the mere introduction of fluorine into an aromatic nucleus results in a compound which would function as a good insecticide. For example, trichloronitro benzene gives good protection against mold for four weeks, while trifluoro nitro benzene only gives protection for one week. However, when fluorine is introduced into a benzene ring containing chlorine and nitro groups as according to the invention, fungicides are obtained.
The following supports can advantageously be used, for
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fungicidal materials; carbon, silica, flfiltrolll, diatomaceous earth, Fuller's earth, talc, and various natural or treated clays as well as other insecticides such as sulfur. Solutions of fungicide in kerosene, and various hydrocarbon oils or solvents such as ketones or halogenated hydrocarbons can also be used.
CLAIMS.
1. Process for the preparation of aromatic fluoro chloro nitro compounds, consisting in introducing one or more fluorine atoms into an aromatic ring with 6 to 18 carbon atoms through the intermediary of diazonium fluoride or fluo-borate, to be introduced one or more chlorine atoms in the benzene nucleus by substitutive chlorination of the fluorinated aromatic nucleus and in adding enough nitro groups to bring the total number of fluoro., chloro and nitro groups to at least 4, by nitration of the chloro fluoro compound previous.
** ATTENTION ** end of DESC field can contain start of CLMS **.
Claims (1)
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