WO2001081274A1 - Process for producing substituted aromatic compound - Google Patents
Process for producing substituted aromatic compound Download PDFInfo
- Publication number
- WO2001081274A1 WO2001081274A1 PCT/JP2001/003392 JP0103392W WO0181274A1 WO 2001081274 A1 WO2001081274 A1 WO 2001081274A1 JP 0103392 W JP0103392 W JP 0103392W WO 0181274 A1 WO0181274 A1 WO 0181274A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- compound
- aromatic
- formula
- atom
- aromatic hydrocarbon
- Prior art date
Links
- 150000001491 aromatic compounds Chemical class 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 50
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 24
- 125000005843 halogen group Chemical group 0.000 claims abstract description 20
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 13
- 150000001450 anions Chemical class 0.000 claims abstract description 12
- 239000001257 hydrogen Substances 0.000 claims abstract description 9
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 4
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 4
- 125000004434 sulfur atom Chemical group 0.000 claims abstract description 4
- 125000001905 inorganic group Chemical group 0.000 claims abstract description 3
- 125000000962 organic group Chemical group 0.000 claims abstract description 3
- -1 hydrogen compound Chemical class 0.000 claims description 101
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 51
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 23
- 125000004432 carbon atom Chemical group C* 0.000 claims description 23
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 8
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N thiocyanic acid Chemical compound SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 8
- 125000001424 substituent group Chemical group 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 150000001340 alkali metals Chemical group 0.000 claims description 6
- 150000002430 hydrocarbons Chemical group 0.000 claims description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- 150000002736 metal compounds Chemical class 0.000 claims description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 125000001931 aliphatic group Chemical group 0.000 claims description 5
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical group 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 4
- 150000002910 rare earth metals Chemical group 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 150000003573 thiols Chemical class 0.000 claims description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- 239000000460 chlorine Substances 0.000 claims description 3
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 2
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims description 2
- 229910000039 hydrogen halide Inorganic materials 0.000 claims 1
- 239000012433 hydrogen halide Substances 0.000 claims 1
- 125000003118 aryl group Chemical group 0.000 abstract description 11
- 125000004435 hydrogen atom Chemical group [H]* 0.000 abstract description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 abstract 1
- 125000001183 hydrocarbyl group Chemical group 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 74
- 239000007983 Tris buffer Substances 0.000 description 17
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 16
- 125000002147 dimethylamino group Chemical group [H]C([H])([H])N(*)C([H])([H])[H] 0.000 description 16
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- 239000002904 solvent Substances 0.000 description 10
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- 239000003054 catalyst Substances 0.000 description 7
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- 238000004445 quantitative analysis Methods 0.000 description 7
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 6
- 150000001768 cations Chemical class 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 6
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 6
- KQNPFQTWMSNSAP-UHFFFAOYSA-N isobutyric acid Chemical compound CC(C)C(O)=O KQNPFQTWMSNSAP-UHFFFAOYSA-N 0.000 description 6
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- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 6
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 6
- 229960003742 phenol Drugs 0.000 description 6
- 238000006467 substitution reaction Methods 0.000 description 6
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 description 5
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- 230000035484 reaction time Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
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- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 4
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- 150000002367 halogens Chemical class 0.000 description 4
- BXWNKGSJHAJOGX-UHFFFAOYSA-N hexadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCO BXWNKGSJHAJOGX-UHFFFAOYSA-N 0.000 description 4
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- 239000007858 starting material Substances 0.000 description 4
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- 229910052700 potassium Inorganic materials 0.000 description 3
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- STOAEWOKLCPIFX-UHFFFAOYSA-N tetrakis[[tris(dimethylamino)-$l^{5}-phosphanylidene]amino]phosphanium Chemical compound CN(C)P(N(C)C)(N(C)C)=N[P+](N=P(N(C)C)(N(C)C)N(C)C)(N=P(N(C)C)(N(C)C)N(C)C)N=P(N(C)C)(N(C)C)N(C)C STOAEWOKLCPIFX-UHFFFAOYSA-N 0.000 description 1
- OUQJYKAJURBIEI-UHFFFAOYSA-M tetrakis[[tris(dimethylamino)-$l^{5}-phosphanylidene]amino]phosphanium;benzoate Chemical compound [O-]C(=O)C1=CC=CC=C1.CN(C)P(N(C)C)(N(C)C)=N[P+](N=P(N(C)C)(N(C)C)N(C)C)(N=P(N(C)C)(N(C)C)N(C)C)N=P(N(C)C)(N(C)C)N(C)C OUQJYKAJURBIEI-UHFFFAOYSA-M 0.000 description 1
- NYTYWTQXLWNFFQ-UHFFFAOYSA-M tetrakis[[tris(dimethylamino)-$l^{5}-phosphanylidene]amino]phosphanium;chloride Chemical compound [Cl-].CN(C)P(N(C)C)(N(C)C)=N[P+](N=P(N(C)C)(N(C)C)N(C)C)(N=P(N(C)C)(N(C)C)N(C)C)N=P(N(C)C)(N(C)C)N(C)C NYTYWTQXLWNFFQ-UHFFFAOYSA-M 0.000 description 1
- GLBZKFGGCHCGAG-UHFFFAOYSA-M tetrakis[[tris(dimethylamino)-$l^{5}-phosphanylidene]amino]phosphanium;hydroxide Chemical compound [OH-].CN(C)P(N(C)C)(N(C)C)=N[P+](N=P(N(C)C)(N(C)C)N(C)C)(N=P(N(C)C)(N(C)C)N(C)C)N=P(N(C)C)(N(C)C)N(C)C GLBZKFGGCHCGAG-UHFFFAOYSA-M 0.000 description 1
- BRKFQVAOMSWFDU-UHFFFAOYSA-M tetraphenylphosphanium;bromide Chemical compound [Br-].C1=CC=CC=C1[P+](C=1C=CC=CC=1)(C=1C=CC=CC=1)C1=CC=CC=C1 BRKFQVAOMSWFDU-UHFFFAOYSA-M 0.000 description 1
- 125000003396 thiol group Chemical group [H]S* 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0255—Phosphorus containing compounds
- B01J31/0264—Phosphorus acid amides
- B01J31/0265—Phosphazenes, oligomers thereof or the corresponding phosphazenium salts
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/22—Amides of acids of phosphorus
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B39/00—Halogenation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
- C07B41/00—Formation or introduction of functional groups containing oxygen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
- C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
- C07C17/20—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms
- C07C17/202—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction
- C07C17/208—Preparation of halogenated hydrocarbons by replacement by halogens of halogen atoms by other halogen atoms two or more compounds being involved in the reaction the other compound being MX
-
- 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
- C07C209/04—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups
- C07C209/06—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms
- C07C209/10—Preparation of compounds containing amino groups bound to a carbon skeleton by substitution of functional groups by amino groups by substitution of halogen atoms with formation of amino groups bound to carbon atoms of six-membered aromatic rings or from amines having nitrogen atoms bound to carbon atoms of six-membered aromatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
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Definitions
- the present invention uses, as a starting material, an aromatic halogen compound, particularly an aromatic chlorine compound which can be produced and obtained industrially at low cost, and uses various chlorine atoms of the chlorine compound as a starting material.
- the present invention relates to a method for producing a substituted aromatic compound which is useful as a product or an intermediate of an industrial chemical, a polymer material, a medical or agricultural chemical, or the like by being substituted with a nucleus.
- an aromatic nucleophilic substitution reaction in which an aromatic halogen compound is reacted with a nucleophile to replace the halogen atom with this nucleophilic species is known. It is also known that group halogen compounds have significantly lower reactivity with nucleophiles than aliphatic halogen compounds. However, if there is a specific substituent at a specific position on the aromatic ring, such as p-nitrocyclobenzene, 2,4-dinitrochlorobenzene or p-benzoylchlorobenzene (active aromatic halogen compound), the The substituent significantly activates the halogen atom of the aromatic compound for the nucleophilic substitution reaction, so that the reaction proceeds easily.
- inactive aromatic halogen compounds such as benzene, p-bromobenzene or o-methoxide benzene, which do not have such a substituent, are described in RT Morrison arid RN Boyd, “Organic Chemistry (below)”.
- Halogenated aryl refers to the inert aromatic halogen compound referred to in the present invention.
- the halogen atom may be activated by leading to an organometallic complex having a fragrance as a ligand, or 3 it may not react with a nucleophile unless a catalyst is present.
- 1 Fyfe, in Patai 3 "T he Chemistry of the Hydroxy Group, "pt. 1, p. 83-124, Interscience Publishers, Inc., New York, 1971. 2 Sehack elhack an d Hall, J. Am. Chem. Soc., 96, 7091, 7092 (1974); M. Fukui, Y. Endo and T. Oishi, Chem. Pharm.
- An object of the present invention is to find an extremely effective reactant for a nuclear substitution reaction for producing a substituted aromatic compound from an aromatic halogen compound, particularly an aromatic chlorine compound which can be produced and obtained industrially at low cost, as a starting material. It is an object of the present invention to provide an effective method for producing a substituted aromatic compound under mild conditions and at a high yield.
- Q— is an anion in which a proton is released from an inorganic acid or from an active hydrogen compound having active hydrogen on an oxygen atom, a nitrogen atom or a sulfur atom, and is derived.
- A, b, c And d are each 1 or 0, but not all 0 at the same time, R may be all the same or different from each other, and each independently represents a hydrocarbon having 1 to 10 carbon atoms May represent a group, or two Rs on the same nitrogen atom may be bonded to each other to form a ring with the nitrogen atom.
- Q is an inorganic or organic group in which one electron is released from Q in formula (1) and is led.
- a method for producing a substituted aromatic compound substituted with Q characterized in that the aromatic compound is substituted with Q.
- the present inventors have conducted intensive studies for the purpose of providing a method for industrially and advantageously producing a substituted aromatic compound. As a result, various nucleophilic anion species represented by Q in the formula (1) were obtained. It has been discovered that the reactivity of the compound to the aromatic nucleophilic substitution reaction is dramatically improved by using the phosphazenium cation in the formula (1) as its counter cation. Therefore, the phosphazenium compound represented by the formula (1) should be used. With this method, the nucleophilic substitution reaction of an inert aromatic halogen compound, particularly an inert aromatic chlorine compound, which has been difficult in the past, is allowed to proceed under extremely mild conditions, and the desired substituted aromatic compound is obtained in a high yield.
- an inert aromatic halogen compound particularly an inert aromatic chlorine compound
- the phosphazenium compound of the formula (1) when performing the substitution reaction with Q—, can be used without using the phosphazenium compound of the formula (1) from the beginning.
- Z— is a halogen anion.
- A, b, c, d, and R are as defined above.
- M represents an alkali metal atom, an alkaline earth metal atom or a rare earth metal atom, and Q has the same meaning as described above.
- N is an integer of 1 to 3.
- FIG. 1 is a diagram showing the reaction rates of p-fluoronitrobenzene in Example 21 and Comparative Examples 1-3.
- the phosphazenium compound of the formula (1) or the formula (2) used in the present invention has an extreme structural formula (that is, the formula (1) or (2)) in which the positive charge of the phosphazenium cation is localized on the central phosphorus atom. Although represented by the formula (2)), innumerable limit structure formulas are drawn and the positive charge is actually delocalized as a whole.
- examples of the inorganic acid include hydrogen halides such as hydrogen fluoride, hydrogen chloride, hydrogen bromide, and hydrogen iodide, hydrogen cyanide, thiocyanic acid, and hydrogen diazide.
- the active compounds having an active hydrogen atom on the oxygen atom include water; for example, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, lactic acid, stearic acid, oleic acid, C1-C20 carboxylic acids such as phenylacetic acid, dihydrocinnamic acid, cyclohexanecarboxylic acid, benzoic acid, paramethylbenzoic acid and 2-carboxynaphthylene; for example, oxalic acid, malonic acid, succinic acid, Maleic acid, fumaric acid, adipic acid, itaconic acid, butanetetracarbonic acid, fumaric acid, isophthalic acid, terephthalic acid, trimellitic acid, vilomeritic acid, etc.
- water for example, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, lactic acid, stearic acid, oleic
- Polycarboxylic acids having from 6 to 6 carboxyl groups for example, N, N-getylcarbamic acid, N-carboxypyrrolidone, N Karubokishia diphosphate and N, N, one Jikarubokishi 2, such as 4-toluenesulfonic Jiamin force Rubamin acids; for example, methanol, ethanol, normal one pro Panol, isopropanol, normaloopyl alcohol, sec-butyl alcohol, te3-t-butyl alcohol, isopentyl alcohol, tert-pentyl alcohol, normal octyl alcohol, lauryl alcohol, cetyl alcohol, cyclopentanol, cyclo Alcohols having 1 to 20 carbon atoms such as hexanol, aryl alcohol, crotyl alcohol, methylvinylcarbinol, benzyl alcohol, 1-phenylethyl alcohol, triphenylcarbinol and cinnamyl alcohol;
- active hydrogen compounds having an active hydrogen atom on the nitrogen atom include, for example, methylamine, ethylethylamine, normal loop-opened pyramine, isoproviramine, normal monobutylamine, isoptylamine, sec-butylamine, aliphatic or aromatic primary amines having 1 to 20 carbon atoms such as tert-butylamine, cyclohexylamine, benzylamine,?
- -phenylethylamine aniline, 0-toluidine, m-toluidine and P-toluidine
- Dimethylamines methylethylamine, getylamine, di-n-propylamine, ethyl-n-butylamine, methyl-sec-butylamine, dipentylamine, dicyclohexylamine, N-methylaniline and diphenylamine
- Aliphatic or aromatic secondary amines having 2 to 20 carbon atoms such as ethylenediamine, di (2-aminoethyl) amine, hexamethylenediamine, 4,4,1-diaminodiphenylmethane, tri (2 —Aminoethyl) 'amine, N, N, monodimethylethylenediamine, N, N 5 —C2 to C20 such as getylethylenediamine and di (2-methylaminoethyl) amine
- active hydrogen compounds having active hydrogen on the sulfur atom include, for example, methanethiol, ethanethiol, normal-butanethiol, tert-butanethiol, hexanethiol, decanethiol, Cyclo
- 1,2-dienethiol, 1,3-propanedithiol, 2,3-butanedithiol, 1,6-hexanedithiol, 1,2,3-propanetrithiol and 2,3-diene (Mercaptomethyl)
- Polyvalent thiols such as 1,4-butanedithiol
- aromatic mercapto compounds such as thiophenol, 0-thiocresol, thionaphthol and 1,2-benzenedithiol.
- the above active hydrogen compounds include those having a plurality of active hydrogens. In some cases, all of these active hydrogens are released to lead to Anion, but in some cases, only a part of them is released to become Anion.
- any anion may be used as the anion Q— as long as the method of the present invention is not hindered.
- hydrogen halides such as hydrogen fluoride, hydrogen chloride, hydrogen bromide and hydrogen iodide
- hydrogen cyanide, thiocyanic acid water
- methanol, ethanol, Normaloop lopanol isopropanol, normalooptyl alcohol, sec-butyl alcohol, tert-butyl alcohol, isopentyl alcohol, tert-pentyl alcohol, normal octyl alcohol, lauryl alcohol, cetyl alcohol, cyclopent
- Aliphatic or aromatic secondary amines for example, methyl thiol, ethane thiol, normal butane thiol, tert-butane thiol, hexane thiol, decane thiol, cyclopentyl melamine and cyclohexyl melamine Monovalent thio And aromatic mercapto compounds such as thiophenol, o-thiocresol, thionaphthol and 1,2-benzenedithiol.
- hydrogen fluoride, hydrogen cyanide, thiocyanic acid, water for example, formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, lauric acid, stearic acid, oleic acid, phenylacetic acid, dihydrocinnamic acid, cyclohexane
- Carboxylic acids having 1 to 20 carbon atoms such as carboxylic acid, benzoic acid, paramethylbenzoic acid and 2-carboxynaphthalene; for example, carbon number such as phenol, 2-naphthol, 2,6-dihydroxysynaprene and bisphenol A
- Aromatic compounds having 6 to 20 1 to 3 hydroxyl groups for example, methylthiol, ethanethiol, normalupylthiol, tert-butylthiol, hexanethiol, decathiol Monovalent thiols such as thiol, cyclopen
- Compounds. A, b, c and d in the formula (1) [the same applies to the formula (2)] are each 1 or 0. However, they are not all 0 at the same time. Of these, at least three of a, b, c and d are preferably 1. This means that they are numbers in the combination (1, 1, 1, 1) or (0, 1, 1, 1), regardless of their order. More preferably, all of a, b, c and d are 1.
- R may be the same or different from each other.
- Two Rs in the notation “R 2 ” may be different from each other.
- R represents a hydrocarbon group having 1 to 10 carbon atoms, or two Rs on the same nitrogen atom may be bonded to each other to form a ring together with the nitrogen atom ⁇
- R independently represents a hydrocarbon group, specifically, for example, methyl, ethyl, normal-propyl, iso-propyl, aryl, normal-butyl, sec-butyl, tert-butyl, 2-butenyl, Pentyl, 2-pentyl, 3-pentyl, 2-methyl-1-butyl, isopentyl, tert-pentyl, 3_methyl-2-butyl, neopentyl, normal-hexyl, 4-methyl-1-pentyl, cyclopentyl, cyclo Hexyl, 1-heptyl, 3-heptyl, 1-octyl, 2-octynole, 2-ethyl-1-hexyl, 1,1-dimethyl-3,3-dimethylbutyl (commonly known as tert-octyl), nonyl Selected from aliphatic or aromatic hydrocarbon groups such as, decyl, phenyl,
- aliphatic hydrocarbons having 1 to 10 carbon atoms such as methyl, ethyl, normal propyl, isopropyl, tert-butyl, tert-pentyl or 1,1-dimethyl-3,3-dimethylbutyl. Hydrogen groups are preferred, and methyl groups are more preferred.
- the divalent substituent has a main chain having 4 to 6 carbon atoms.
- the ring is a 5- to 7-membered ring containing a nitrogen atom
- tetramethylene pen Preferred are tamethylene and hexamethylene, or those in which the main chain thereof is substituted with an alkyl group such as methyl or ethyl. More preferably, it is tetramethylene or pentamethylene.
- Such a ring structure may be used for all possible nitrogen atoms in the phosphazenium cation, or a part thereof may be used.
- examples of the remaining R include the groups exemplified when R independently represents a hydrocarbon group, and preferred groups are also the same.
- phosphazenium compounds can be synthesized by the method described on pages 12 to 13 of EP 0 790 160 or a similar method.
- the aromatic halogen compound used in the present invention is a compound having at least one halogen atom on an aromatic compound, and may be either an aromatic hydrocarbon compound or an aromatic heterocyclic compound.
- Aromatic hydrocarbon halogen compounds include inert fluorinated aromatic hydrocarbon compounds, inert chlorinated aromatic hydrocarbon compounds, inert brominated aromatic hydrocarbon compounds, and inert hydrocarbon compounds. Iodinated aromatic hydrocarbon compounds, active fluorine aromatic hydrocarbon compounds, active chlorinated aromatic hydrocarbon compounds, active brominated aromatic hydrocarbon compounds, active iodinated aromatic hydrocarbon compounds Is mentioned.
- inert and active halogenated aromatic hydrocarbon compounds are described in R. T. Morrison and RN Boyd, "Organic Chemistry (Lower)", 5th edition, pp. 1298 to 1301 Is defined according to That is, a halogenated aromatic hydrocarbon compound in which an electron-withdrawing group is substituted at the 0- and / or p-position with respect to the halogen atom of the halogenated aromatic hydrocarbon compound is defined as an active halogenated aromatic hydrocarbon compound, Other than that, that is, electron absorption at 0- and / or P-position with respect to the halogen atom of the halogenated aromatic hydrocarbon compound (the halogenated aromatic hydrocarbon compound having an unsubstituted group is replaced with an inert halogen). Is defined as a fluorinated aromatic hydrocarbon compound. Inactive fluorinated aromatic hydrocarbon compounds include, for example, fluorobenzene,
- Inactive chlorinated aromatic hydrocarbon compounds include, for example, benzene, 2-chlorotoluene, 3-chlorotoluene, 4-chlorotoluene, 2-methoxychlorobenzene, 3-methoxychlorobenzene, and 4-chlorochlorobenzene.
- Inactive brominated aromatic hydrocarbon compounds include, for example, bromobenzene, 2-bromotoluene, 3-bromotoluene, 4-bromotoluene, 2-methoxybromobenzene, 3-methoxybromobenzene, 4-methoxybromobenzene , 2-dimethylaminobromobenzene, 3-dimethylaminobromobenzene, 4-dimethylaminobromobenzene, 2-hydroxybromobenzene, 3-hydroxybutane Lomobenzene, 4-hydroxybromobenzene, 2-aminobromobenzene, 3-aminobromobenzene, 4-aminobromobenzene, 1,3-dibromobenzene, 1,3,5-tribromobenzene, 3-nitrobromobenzene, 3-cyano bromobenzene, 3-phenylsulfonyl-bromobenzene, 3-ethoxycarbonyl-bro
- inert iodinated aromatic hydrocarbon compounds include, for example, iodobenzene, 2-iodotoluene, 3-iodotoluene, 4-iodotoluene, 2-methoxyiodobenzene, 3-methoxodobenzene, and 4-methoxyiodo.
- active fluorine-aromatic hydrocarbon compounds examples include 2-nitrofluorobenzene, 4-212fluorobenzene, 2-cyanofluorobenzene, 4-cyanofluorobenzene, 2-phenylsulfonyl-fluorobenzene, and 4-phenylfluorobenzene.
- active chlorinated aromatic hydrocarbon compounds examples include 2-nitrochlorobenzene, 4-nitrochlorobenzene, 2-cyanochlorobenzene, 4-cyanochlorobenzene, 2-phenylsulfonyl-chlorobenzene, and 4-chlorobenzene.
- active brominated aromatic hydrocarbon compounds examples include 2-nitrobromobenzene, 4-nitrobromobenzene, 2-cyanobromobenzene, 4-cyanobromobenzene, 2-phenylsulfonyl-1-bromobenzene, and 4-bromobenzene.
- Active iodinated aromatic hydrocarbon compounds include, for example, 2-nitrobenzene, 4-212benzene, 2-cyanobenzene, 4-cyanobenzene, 2-phenylsulfonylobenzene, 4-phenylsulfonylbenzene, 4-ethoxycarbonylbenzene, 4-honolemylbenzene, 4-phenylcarbonylbenzene, 2,4-dinitrobenzene, 2-cyano-4-benzenebenzene, 2,4-disocyano-dobenzene, 1,2-jodobenzene, 1,2,4-triodobenzene, hexaiodobenzene, 1,2-jodonaphthalene, 1,2,4-triode Naphthoquinone evening Ren, Okutayo one de naphthalene, 4, 4 5 over di tio over de benzo off We non and 4, 4 5 - Jo one blunder Hue sulphone, and the like.
- Aromatic heterocyclic compounds include fluorinated, chlorinated, brominated or iodinated aromatic heterocyclic compounds.
- fluorinated aromatic heterocyclic compound examples include 2-fluorofuran, 3-fluorofuran, 5-fluorofuraldehyde, 2-fluorothiophene, 3-fluorothiophene, 2,5-difluorothiophene , 3,4-Difluorothiophene, Tetrafluorothiophene, 2-Acetyl-1-5-Fluorothiophene, 3-Acetyl-1 2,5, Fluorothiophene, 4-Fluoro-2- Thiophenecarbaldehyde, 5-fluoro-2-thiophencarbaldehyde, 4-fluoropropyl, 4-fluoro-3-methylvirazole, 5-fluoro-3-methyl-1-phenyl-1-birazolcarbaldehyde, 5-fluoro- 1-Methylimidazole, 2-Fluorothiazole, 3,4-Difluorothiadiazol, 4—Fluoroindole, 5—
- Examples of the chlorinated aromatic heterocyclic compound include compounds in which the fluorine atom of the above-mentioned fluorinated aromatic heterocyclic compound is replaced with a chlorine atom, dioxin, and the like.
- Examples of the brominated aromatic heterocyclic compound and the iodinated heteroaromatic compound include compounds in which a fluorine atom of the above-mentioned fluorinated aromatic heterocyclic compound is replaced with a bromine atom or an iodine atom, respectively. .
- halogen compound in the method of the present invention is not limited to these examples.
- the molecule may have two or more different types of halogen atoms, and these aromatic halogen atoms may be used unless the method of the present invention is hindered.
- the gen compound may have any other substituent, functional group or hetero atom.
- aromatic halogen compounds the above-mentioned ⁇ active fluorinated aromatic hydrocarbon compounds, inert chlorinated aromatic hydrocarbon compounds, inert brominated aromatic hydrocarbon compounds, active fluorination
- the halogen involved in the exchange reaction in the aromatic halogen compound used for the reaction is present below the Q in the periodic table. That is, for example, the aromatic halogen compound used when Q— is F— is an aromatic halogen compound having at least one chlorine, bromine or iodine character.
- the aromatic halogen compounds are specifically exemplified by the above-mentioned inert or active chlorinated, brominated or iodinated aromatic hydrocarbon compounds, and chlorinated compounds. Brominated or iodinated aromatic heterocyclic compounds and the like can be mentioned.
- an inert chlorinated aromatic hydrocarbon compound, an inert brominated aromatic hydrocarbon compound, an active chlorinated aromatic hydrocarbon compound, an active brominated aromatic hydrocarbon compound, a chlorinated aromatic complex A cyclic compound and a brominated aromatic heterocyclic compound, more preferably an inert chlorinated aromatic hydrocarbon compound, an inert brominated aromatic hydrocarbon compound, a chlorinated aromatic heterocyclic compound or It is a brominated aromatic heterocyclic compound, and more preferably, an inert chlorinated aromatic hydrocarbon compound, a chlorinated aromatic heterocyclic compound or a brominated aromatic heterocyclic compound.
- the amount of the phosphazenium compound represented by the formula (1) is not particularly limited, but is usually 5 mol or less, and preferably 1 mol or less, per 1 mol of the halogen atom to be substituted in the halogenated aromatic compound. 0.5 to 2 mol, more preferably 0.5 to 2 mol. 8 to 1.2 moles.
- the reaction temperature is not uniform depending on the type of the phosphazenium compound and the aromatic halogen compound represented by the formula (1) to be used or the solvent when used, but is usually 250 ° C or lower, preferably 0 to 0 ° C.
- the temperature is 230 ° C, more preferably 30 to 200 ° C.
- the pressure during the reaction is not uniform depending on the type of raw materials used, but is usually 3.OMPa (absolute pressure, the same applies hereinafter) or less, preferably from 0.01 to 1.5 MPa, more preferably 0 to 1.5 MPa. 1 or 1. OMPa.
- the reaction time is usually within 48 hours, preferably 0.01 to 30 hours, more preferably 0.02 to 15 hours.
- the phosphazenium compound of the formula (1) when performing the substitution reaction with Q—, can be used without using the phosphazenium compound of the formula (1) from the beginning.
- Z- is a halogen anion.
- A, b, c, d, and R are as defined above.
- M represents an alkali metal atom, an alkaline earth metal atom or a rare earth metal atom, and Q has the same meaning as described above.
- N is an integer of 1 to 3.
- Aromatic compounds can also be produced.
- the conditions, preferable conditions and the like are the same as those in the above formula (1). Same conditions as required for d and R.
- Z is a halogen anion such as, for example, fluorine anion, chlorine anion, bromine anion or iodine anion. Of these, fluorine anion or chlorine anion is preferable, and chlorine anion is more preferable. .
- the phosphazenium compound represented by the formula (2) may be used in combination of two or more kinds. Further, together with the phosphazenium compound represented by the formula (2), a macrocyclic polymer conventionally used as a catalyst may be used. Ter (crown ether, etc.), chain polyether, quaternary ammonium salt or quaternary phosphonium salt may be used in combination.
- M in the metal compound represented by MQ n is a metal atom capable of taking a valence of up to three.
- an alkali metal atom such as lithium, sodium, potassium, cesium or rubidium
- an alkaline earth metal atom such as magnesium, calcium, strontium or barium
- a rare earth metal atom such as cerium, praseodymium, neodymium or samarium
- an alkali metal atom such as lithium, sodium, potassium, cesium or rubidium is preferable, and sodium or potassium is more preferable.
- n is an integer of 1 to 3, preferably n is 1.
- the amount of the phosphazenium compound represented by the formula (2) to be used is not particularly limited, but is based on the number of moles of the halogen atom to be substituted in the aromatic or halogenated compound.
- the amount is usually less than 1 mol, preferably from 0.001 to 0.2 mol, more preferably from 0.01 to 0.2 mol, per mol of the halogen atom to be substituted.
- the range is 0.1 mole.
- the amount of the metal compound MQ n used is not particularly limited, but the number of exchangeable Q moles in the MQ n per mole of the halogen atom to be replaced in the aromatic halogen compound (usually n In the range of usually 0.5 to 4.0 moles, preferably 0.8 to 2.5 moles, more preferably 1.0 to 1.5 moles. Yes (The number of moles of MQ n is 1 / n of these.) O) o
- reaction temperature, reaction pressure and reaction time are the same as when the phosphazenium compound of the above formula (1) was used.
- the reaction can be carried out without a solvent, but is represented by a phosphazenium compound and an aromatic halogen compound represented by the formulas (1) and (2), and MQ n when used.
- a solvent can be used if necessary to make the contact with the metal compound effective.
- the solvent used is not uniform depending on the kind and amount of these used, but any solvent may be used as long as it does not inhibit the reaction.
- any solvent may be used as long as it does not inhibit the reaction.
- the method of isolating the target substituted aromatic compound from the reaction solution the type of the starting material used, the type of the target substituted aromatic compound or the type and amount of the solvent when used, etc.
- the desired substituted aromatic compound is extracted from the reaction solution or, if a solvent is used, from the solvent from which the solvent has been distilled off, by a separation method such as extraction, distillation, recrystallization or column chromatography. A compound can be obtained.
- Example 2 Instead of tetrakis [tris (dimethylamino) phosphoranylidenamino] phosphonium methoxide in Example 1, an equimolar amount of tetrakis [tris (dimethylamino) phosphoranylideneamino] phosphonium tert-butylthiol.
- the quantitative analysis by gas chromatography was performed in the same manner. Butyl phenyl thioether was formed in a yield of 99%.
- Example 2 was carried out in exactly the same manner as in Example 2 except that 1,2-dichlorobenzene was used instead of benzene.
- the desired 2-chlorofluorobenzene was produced in 92% yield.
- Example 2 was carried out in the same manner as in Example 2 except that 1,3-dichlorobenzene was used instead of benzene.
- the desired 3-chloro mouth fluorobenzene was produced in a yield of 74%.
- Example 2 The procedure was performed in exactly the same manner as in Example 2 except that 1,3-dibromobenzene was used in place of benzene in Example 2. The desired 3-bromofluorobenzene was produced in 85% yield.
- Example 2 was carried out in exactly the same manner as in Example 2, except that 3-chlorofluorobenzene was used instead of benzene.
- the desired 1,3-difluorobenzene was produced with a yield of 77%.
- Example 17 In place of tetrakis [tris (dimethylamino) phosphoranilideneamino] phosphonium methoxide in Example 17, a 2.5-fold molar amount of tetrakis [tris (dimethylamino) phosphoranilideneamino] phosphonium fluoride was used.
- Example 17 was carried out in exactly the same manner as in Example 17, except that an equimolar amount of 1,2-dichlorobenzene was used in place of methyl-6-chloroindole and the reaction temperature was changed to 130 ° C. The desired 1,2-difluorobenzene was produced in 92% yield.
- Example 17 Instead of tetrakis [tris (dimethylamino) phosphoranilideneamino] phosphonium methoxide in Example 17, a 2.5-fold molar amount of tetrakis [tris (dimethylamino) phosphoranylidenamino] phosphonium fluoride was used.
- Example 1 except that an equimolar amount of 4,4'-dichloromouth benzophenone was used in place of 1,1-methyl-6-chloromouth indole, toluene was used in place of THF, and the reaction temperature was changed to 70 ° C. Performed exactly as in 17. The desired 4,4,1-difluorobenzophenone was produced in 99% yield.
- Example 17 tetrakis [tris (dimethylamino) phosphoranilidenemino] phosphonium methoxide in Example 17 was used, and 1-methyl-6 The procedure was performed in exactly the same manner as in Example 17 except that 4-monobromopyridine was used in place of indole and toluene was used in place of THF, and the reaction temperature was changed to 130 ° C. The desired 4-fluoropyridine was produced in 89% yield.
- the production yields of p-fluoronitrobenzene corresponding to the respective reaction times were 33%, 50%, 83% and 98%.
- the reaction mixture was cooled to room temperature, and the insoluble solid was filtered off.
- the solid was washed twice with 1 Oml of toluene, and the washing solution and the mother liquor were combined. After the solution was washed three times with 5 Oml of water, the organic phase was dried over sodium sulfate, and toluene was distilled off under reduced pressure to obtain 1.87 g of almost pure P-fluoronitrobenzene as an oil. Obtained.
- Example 21 was repeated except that an equimolar amount of tetraphenylphosphonium bromide was used in place of tetrakis [tris (dimethylamino) phosphoranylideneamino] phosphonium chloride which is a phosphazenium compound in Example 21.
- the reaction and the quantitative analysis were performed in the same manner. After 30 minutes, 1 hour, 3 hours and 6 hours, the production yields of p-fluoronitrobenzene were 6%, 12%, 27% and 38%, respectively.
- Example 21 The reaction of Example 21 was repeated except that an equimolar amount of 18-crown-6 was used in place of the phosphazenium compound tetrakis [tris (dimethylamino) phosphoranylideneamino] phosphonium chloride in Example 21.
- the analysis was performed in the same manner as the quantitative analysis method. After 30 minutes, 1 hour, 3 hours and 6 hours, the production yields of p-fluoronitrobenzene were 5%, 11%, 23% and 34%, respectively.
- Example 21 p-fluoronitrobenzene was used in place of p-chloronitrobenzene, sodium phenolate was used in place of potassium fluoride, the reaction temperature was changed to 80 ° C, and the reaction time was not traced during the reaction. The procedure was the same as in Example 21 except that the time was changed to 3 hours. The desired 4-phenoxynitrobenzene was produced in 98% yield.
- Hexabromobenzene was used in place of p-chloronitrobenzene in Example 21, the amount of potassium fluoride used was changed to 3 times the molar amount, and 1,3-dimethyl-2-imidazolidinone was used in place of DMSO.
- the reaction was performed in the same manner as in Example 21 except that the reaction temperature was changed to 200 ° C and the reaction time was changed to 9 hours without following the reaction. I got it.
- the desired 1,3,5-trifluoro-2,4,6-tribromobenzene was produced with a yield of 85%.
- the nucleophilic substitution reaction of an aromatic halogen compound, especially an aromatic chlorine compound, which is easily produced and easily available industrially, can be carried out under milder conditions than conventional methods.
- the desired substituted aromatic compound can be produced in a high yield.
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Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/018,424 US6469224B1 (en) | 2000-04-20 | 2001-04-20 | Process for preparation of substituted aromatic compound |
AT01921945T ATE444944T1 (de) | 2000-04-20 | 2001-04-20 | Verfahren zur herstellung substituierter aromatischer verbindungen |
EP01921945A EP1275630B1 (en) | 2000-04-20 | 2001-04-20 | Process for producing substituted aromatic compound |
IL147171A IL147171A (en) | 2000-04-20 | 2001-04-20 | Process for the conversion of halogenated aromatic compounds using phosphazanium salts |
DE60140112T DE60140112D1 (de) | 2000-04-20 | 2001-04-20 | Verfahren zur herstellung substituierter aromatischer verbindungen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2000119040 | 2000-04-20 | ||
JP2000-119040 | 2000-04-20 |
Publications (1)
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WO2001081274A1 true WO2001081274A1 (en) | 2001-11-01 |
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ID=18630086
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/003392 WO2001081274A1 (en) | 2000-04-20 | 2001-04-20 | Process for producing substituted aromatic compound |
Country Status (9)
Country | Link |
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US (1) | US6469224B1 (ja) |
EP (1) | EP1275630B1 (ja) |
KR (1) | KR100416033B1 (ja) |
CN (1) | CN1169759C (ja) |
AT (1) | ATE444944T1 (ja) |
DE (1) | DE60140112D1 (ja) |
IL (1) | IL147171A (ja) |
TW (1) | TWI295986B (ja) |
WO (1) | WO2001081274A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003101926A1 (de) * | 2002-06-04 | 2003-12-11 | Clariant Gmbh | Verfahren zur herstellung von fluor enthaltenden verbindungen über fluor-halogenaustausch durch spezielle polyaminophosphazen-katalysatoren |
CN108586257A (zh) * | 2018-05-03 | 2018-09-28 | 浙江解氏新材料股份有限公司 | 一种对氟硝基苯的新型制备方法 |
EP3696156A1 (en) | 2019-02-15 | 2020-08-19 | Fujian Yongjing Technology Co., Ltd. | New process for the manufacture of fluoroaryl compounds and derivatives |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10307558A1 (de) * | 2003-02-21 | 2004-09-02 | Clariant Gmbh | Phosphazeniumsalz-Mischungen enthaltend Hexakis(amino)diphosphazenium Tetrakis(amino)-phosphonium und Polyaminophosphazenium-Salze |
IL162078A0 (en) * | 2003-06-12 | 2005-11-20 | Mitsui Chemicals Inc | Method for producing organic compound by substituted halogen atoms |
US20060069291A1 (en) * | 2004-09-24 | 2006-03-30 | General Electric Company | Phosphazenium salt phase transfer catalysts |
US7202388B2 (en) * | 2004-10-06 | 2007-04-10 | E. I. Du Pont De Nemours And Company | Processes for preparing fluoroarenes from haloarenes |
US7960305B2 (en) * | 2005-02-25 | 2011-06-14 | Mitsui Chemicals, Inc. | Polymerization catalyst composition and process for production of polymer |
US7268237B2 (en) * | 2005-03-11 | 2007-09-11 | General Electric Company | Direct dianhydride synthesis |
US9206210B2 (en) * | 2011-10-05 | 2015-12-08 | Battelle Energy Alliance, Llc | Ionic liquids, electrolyte solutions including the ionic liquids, and energy storage devices including the ionic liquids |
CN107141192B (zh) * | 2017-05-09 | 2019-10-11 | 大连奇凯医药科技有限公司 | 一种均三氟苯的制备方法 |
EP3736260A1 (en) | 2019-05-10 | 2020-11-11 | Rhodia Operations | Process for the preparation of dihalobenzophenones, new chemicals useful for its implementation and methods for preparing said chemicals |
EP3736259B1 (en) | 2019-05-10 | 2022-08-03 | Rhodia Operations | New cycloadduct precursors of dihalobenzophenones and preparations thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0791600A1 (en) * | 1996-02-20 | 1997-08-27 | Mitsui Toatsu Chemicals, Inc. | Phosphazenium salt and preparation process thereof, and process for producing poly(alkylene oxide) |
-
2001
- 2001-04-20 IL IL147171A patent/IL147171A/en not_active IP Right Cessation
- 2001-04-20 KR KR10-2001-7016278A patent/KR100416033B1/ko not_active IP Right Cessation
- 2001-04-20 DE DE60140112T patent/DE60140112D1/de not_active Expired - Lifetime
- 2001-04-20 TW TW090109511A patent/TWI295986B/zh not_active IP Right Cessation
- 2001-04-20 CN CNB018012299A patent/CN1169759C/zh not_active Expired - Fee Related
- 2001-04-20 US US10/018,424 patent/US6469224B1/en not_active Expired - Lifetime
- 2001-04-20 WO PCT/JP2001/003392 patent/WO2001081274A1/ja active Application Filing
- 2001-04-20 EP EP01921945A patent/EP1275630B1/en not_active Expired - Lifetime
- 2001-04-20 AT AT01921945T patent/ATE444944T1/de not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0791600A1 (en) * | 1996-02-20 | 1997-08-27 | Mitsui Toatsu Chemicals, Inc. | Phosphazenium salt and preparation process thereof, and process for producing poly(alkylene oxide) |
Non-Patent Citations (1)
Title |
---|
SCHWESINGER R. ET AL.: "Stable phosphazenium ions in synthesis - an easily accessible, extremely reactive 'naked' fluoride salt", ANGEW. CHEM., INT. ED. ENGL., vol. 30, no. 10, 1991, pages 1372 - 1375, XP002941731 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003101926A1 (de) * | 2002-06-04 | 2003-12-11 | Clariant Gmbh | Verfahren zur herstellung von fluor enthaltenden verbindungen über fluor-halogenaustausch durch spezielle polyaminophosphazen-katalysatoren |
CN108586257A (zh) * | 2018-05-03 | 2018-09-28 | 浙江解氏新材料股份有限公司 | 一种对氟硝基苯的新型制备方法 |
EP3696156A1 (en) | 2019-02-15 | 2020-08-19 | Fujian Yongjing Technology Co., Ltd. | New process for the manufacture of fluoroaryl compounds and derivatives |
US11420917B2 (en) | 2019-02-15 | 2022-08-23 | Fujian Yongjing Technology Co., Ltd. | Process for the manufacture of fluoroaryl compounds and derivatives |
Also Published As
Publication number | Publication date |
---|---|
IL147171A (en) | 2006-06-11 |
CN1169759C (zh) | 2004-10-06 |
EP1275630A1 (en) | 2003-01-15 |
KR100416033B1 (ko) | 2004-01-24 |
US20020161227A1 (en) | 2002-10-31 |
TWI295986B (ja) | 2008-04-21 |
EP1275630B1 (en) | 2009-10-07 |
DE60140112D1 (de) | 2009-11-19 |
KR20020019465A (ko) | 2002-03-12 |
ATE444944T1 (de) | 2009-10-15 |
IL147171A0 (en) | 2002-08-14 |
EP1275630A4 (en) | 2006-09-06 |
US6469224B1 (en) | 2002-10-22 |
CN1380880A (zh) | 2002-11-20 |
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