WO2006077844A1 - ホスホニトリル酸エステルの製造方法 - Google Patents
ホスホニトリル酸エステルの製造方法 Download PDFInfo
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- WO2006077844A1 WO2006077844A1 PCT/JP2006/300577 JP2006300577W WO2006077844A1 WO 2006077844 A1 WO2006077844 A1 WO 2006077844A1 JP 2006300577 W JP2006300577 W JP 2006300577W WO 2006077844 A1 WO2006077844 A1 WO 2006077844A1
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- 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
- C07F9/062—Organo-phosphoranes without P-C bonds
- C07F9/065—Phosphoranes containing the structure P=N-
-
- 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
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6581—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms
- C07F9/65812—Cyclic phosphazenes [P=N-]n, n>=3
- C07F9/65815—Cyclic phosphazenes [P=N-]n, n>=3 n = 3
-
- 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
- C07F9/062—Organo-phosphoranes without P-C bonds
- C07F9/065—Phosphoranes containing the structure P=N-
- C07F9/067—Polyphosphazenes containing the structure [P=N-n]
-
- 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
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/6564—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms
- C07F9/6581—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having phosphorus atoms, with or without nitrogen, oxygen, sulfur, selenium or tellurium atoms, as ring hetero atoms having phosphorus and nitrogen atoms with or without oxygen or sulfur atoms, as ring hetero atoms
- C07F9/65812—Cyclic phosphazenes [P=N-]n, n>=3
- C07F9/65817—Cyclic phosphazenes [P=N-]n, n>=3 n = 4
Definitions
- the present invention relates to a method for producing a phosphonitrile ester from phosphonitrile dichloride. More specifically, when phosphonitrile dichloride is reacted with a metal arylate and / or a metal alcoholate to produce a phosphonitrile ester.
- the reaction can be accelerated by using a metal arylate and / or metal alcoholate composed of at least two metals with different ionization energies and adding a specific compound as a catalyst. It relates to a method for producing acid esters very quickly.
- Phosphononitrile esters have a very wide range of uses as additives for plastics and rubber, fertilizers, medicines, and the like. Particularly in recent years, there has been an increasing social interest in making plastics flame-retardant and non-flammable with non-halogen flame retardants. Derivatives of phosphonitrile ester oligomers and phosphonitrate ester polymers not only have excellent flame retardancy, but also have excellent hydrolysis resistance and high heat resistance compared to conventional phosphate esters. Therefore, it is very promising for use in flame retardant / incombustible materials.
- the resin composition to which these are added exhibits a very low dielectric constant, it is also promising as a flame retardant for electronic materials such as printed circuit board materials and semiconductor encapsulant materials. Therefore, an industrially efficient method for producing phosphonitrate is strongly desired.
- Q represents an aryloxy group or an alkoxy group.
- Q represents an aryloxy group or an alkoxy group.
- the phosphonitrile ester represented by the following general formula (9) does not contain a chlorine atom bonded to a phosphorus atom (hereinafter referred to as a black mouth group) in the chemical structural formula.
- a black mouth group a chlorine atom bonded to a phosphorus atom
- a product obtained from aryloxy and / or alkoxylation reaction has the following general formula (10 )
- a monochrome mouthpiece with a black mouth group remaining will remain. It is difficult to substitute all the aryl groups and / or alkoxy groups at the time of production, and in particular, it is difficult to replace the last remaining one in the molecule.
- a phosphonitrile ester in which substitution from a black end group to an aryloxy group and / or alkoxy group is not completed is a flame retardant.
- a resin that is easily decomposed by an acid such as a polyester resin, in particular, a polycarbonate resin
- the resin itself is caused by the phosphate group derived from P—OH contained in the phosphonitrile ester. Disassembled. As a result, various mechanical properties of the resin composition, such as flame resistance and heat resistance, are deteriorated.
- the dielectric performance is further reduced.
- Toluene xylene is used as an inert solvent for the reaction, and alkali metal alcoholate prepared by azeotropic dehydration from alcohols and phenols and alkali hydroxide is allowed to react with lithium metal phosphate and phosphonitrile dichloride.
- Patent Document 1 a method for producing a phosphonitrile ester is widely known.
- Patent Document 1 it is difficult to replace all of the chloronitrile groups in the phosphonitrile dichloride with, for example, bulky phenoxy groups, and the reaction takes a long time. Is a high problem.
- Patent Literature phosphonitrile dichlorochlor A method of reacting an id compound with an epoxy compound and an amine compound is known (Patent Literature).
- Patent Documents 5 and 6 a method is known in which toluene is used as a reaction solvent and a quaternary ammonium salt is used as a phase transfer catalyst. According to this method, the operation of collecting and recovering a large amount of quaternary ammonium salt is complicated. In addition, since a large amount of water is used during the reaction, the phosphonitrile dichloride is susceptible to hydrolysis because the reaction system is a two-phase system consisting of water and an organic solvent. In addition, when the reaction temperature is raised to improve the reactivity, hydrolysis becomes prominent, and P_OH-derived phosphate radicals are formed, and gelling is likely to occur due to the crosslinking reaction.
- a method is known in which monochlorobenzene is used as a reaction solvent, the amount of water in the reaction system is controlled, and cyclic phosphonitrile dichloride reacts with an alkali metal arylate and / or an alkali metal alcoholate.
- Patent Document 7 A method is known in which monochlorobenzene is used as a reaction solvent, the amount of water in the reaction system is controlled, and cyclic phosphonitrile dichloride reacts with an alkali metal arylate and / or an alkali metal alcoholate.
- Patent Documents 10, 11, and 12 There are known methods for defining the water content (Patent Documents 10, 11, and 12). According to these methods, it is possible to produce a phosphonitrile ester containing no monochromatic mouthpiece very quickly. However, if trace amounts of oxygen are present in the reaction system, the colored components produced by the oxidation of phenol remain in the product and become colored and the hue deteriorates, so the reaction system is converted to an inert gas such as nitrogen. It was necessary to reduce the amount of oxygen by substitution.
- alcohols and / or phenols are used as they are without distilling off the reaction solvent from the reaction solution in which phosphonitrile dichloride is produced from chlorinated phosphorus and ammonium chloride. It is known how to react with a kind.
- the synthesis method of phosphonitrile dichloride used as the main raw material in the production of phosphonitrate ester is (1) a method using phosphorus pentachloride as a phosphorus source, and (2) phosphorus trichloride. And (3) a method using white phosphorus, (4) a method using phosphorus nitride, and the like.
- the phosphonitrile dichloride thus produced is usually subjected to a step of filtering a reaction slurry containing phosphonitrile dichloride to remove excess salt and ammonium, and the following isolation is performed. Perform at least one operation selected from among processes:
- Reaction fluid operation Evaporating the solvent, adding a hydrocarbon solvent to the concentrated or dried component, and separating the chain and ring,
- Patent Document 1 US Pat. No. 4,107,108
- Patent Document 2 Japanese Patent Laid-Open No. 51-21000
- Patent Document 3 JP 2001-2691 A
- Patent Document 4 Japanese Patent Laid-Open No. 4-13683
- Patent Document 5 JP-A-64-87634
- Patent Document 6 Japanese Patent Application Laid-Open No. 60-155187
- Patent Document 7 JP 2000-198793 A Patent Document 8: US Patent No. 3939228
- Patent Document 9 French Patent No. 2700170
- Patent Document 10 Japanese Patent Application Laid-Open No. 2004-359604
- Patent Document 11 Japanese Unexamined Patent Application Publication No. 2004-359617
- Patent Document 12 W ⁇ 2004Zl08737 pamphlet
- Patent Document 13 Japanese Patent Laid-Open No. 57-3705
- Patent Document 14 JP-A-49-47500
- Patent Document 15 Japanese Patent Laid-Open No. 62-39534
- Patent Document 16 U.S. Pat.No. 3,794,701
- Patent Document 17 Russian Patent No. 385980
- the present inventors have solved the problem of the present invention, that is, a production method for reducing the amount of monochrome mouthpiece contained in the phosphonitrate ester and reducing coloring in a short reaction time. , And earnestly researched.
- the first stage step reaction solution containing the phosphonitrile dichloride causes a trace amount of the metal component.
- the reaction of the second stage process was accelerated, and it was found that a phosphonitrile ester having an extremely low content of a monochrome mouthpiece could be obtained very quickly, and the present invention was completed.
- the present invention has the following contents:
- a cyclic and Z or chain phosphonitryl dichloride represented by the following general formula (1) is converted into a metal arylate represented by the following general formula (2), the following general formula (3): And a metal alcoholate represented by the following general formula (4) and a metal alcoholate represented by the following general formula (4): a cyclic and Z or chain represented by the following general formula (5) by reacting with at least one compound selected from the group consisting of:
- a phosphonitrate is characterized by the use of a metal aliquot composed of at least two metals having different ionization energies and a Z or metal alcoholate. Manufacturing method.
- n represents an integer of 3 or more.
- R to R are hydrogen atoms or ⁇ M group, charcoal
- M is an element selected from the group consisting of elements of group IA, IIA, IIIA, IVA, VA, VIA, IIB, IIIB, IVB, VB, VIB, VIIB, VI II, and R is a single element. Bond, carbon number 1 to: 10 fat
- Q represents an aryloxy group or an alkoxy group
- m represents an integer of 3 or more.
- A is a group force selected from the elements of group IIA, IIIA, IVA, VA, VIA, IIB, IIIB, IVB, VB, VIB, VIIB, and VIII in the long periodic table, and X is Represents a halogen atom, p is an integer of 0 to: 10, q is an integer of 1 to 10, and r is an integer of 1 to 35.
- the reaction solvent used for the production of the phosphonitrate ester is at least one selected from the group consisting of toluene, xylene, monochrome benzene, dichlorobenzene and trichloro benzene (I) to (VII)
- the method for producing a phosphonitrile acid ester according to any one of (I) to (IX), which is a seed.
- a metal alloy comprising at least two metals having different ionic energy.
- One type of sodium alcoholate and / or metal alcoholate is sodium gallate and / or sodium alcoholate, and another type is potassium gallate, potassium alcoholate, rubidium gallate, rubidium alcoholate, cesium gallate, and cesium. It is at least one selected from alcoholates (X).
- At least one amount of use power selected from the potassium gallate, potassium alcoholate, rubidium gallate, rubidium alcoholate, cesium gallate and cesium alcoholate The method for producing a phosphonitrate ester according to (XI), wherein the amount is from 0.0001 to 1.0 mol.
- the catalyst of the phosphonitrate ester described in (XIV) is characterized in that the catalyst used in the first step is at least one selected from among metal oxides and metal salts. Production method.
- the catalyst used in the first step is zinc oxide, magnesium oxide, aluminum oxide, cobalt oxide, copper oxide, zinc chloride, magnesium chloride, aluminum chloride, cobalt chloride, copper chloride.
- the halogenated aromatic hydrocarbon is at least one selected from monochrome benzene, dichlorobenzene, and trichloro benzene.
- (XIV) to (XVI) A method for producing a phosphonitrile ester.
- cyclic and / or chain In the production of a phosphonitrile acid ester having a cyclic and / or chain shape by reacting a phosphonitrile dichloride that is in the form of a metal with a metal arylate and / or a metal alcohol, at least different ionization energies are used as raw materials.
- a metal arylate and / or metal alcoholate consisting of two kinds of metals, and using a specific compound as a reaction catalyst, the content of the monochromatic mouthpiece is very low and the phospho Nitrilic acid esters can be produced.
- phosphonitrile dichloride produced by reacting chlorinated phosphorus with ammonium chloride in the presence of a catalyst can be used as a metal arylate and Z or metal without isolating the phosphonitrile dichloride from the reaction slurry.
- a catalyst By reacting with alcoholate, it is possible to produce phosphonitrate esters very quickly.
- the reaction proceeds very rapidly, so that the reaction time can be shortened and the utility cost can be reduced. Furthermore, since the resulting product is less colored, it has a good hue when blended with a resin, etc., and does not require a step for decolorizing the phosphonitrate, so it can be produced at a lower cost. It is possible. Accordingly, the present invention makes it possible to produce industrially useful phosphonitrate esters with a low monochromatic mouthpiece content. As a result, the hydrolysis resistance and heat resistance of the phosphonitrile ester itself are improved.
- the step of producing phosphonitrile dichloride which is one of the raw materials, that is, the step of producing phosphonitrile dichloride from chlorinated phosphorus and ammonium chloride is referred to as the first step.
- the process of producing a phosphonitrile ester from phosphonitrile dichloride and a metal alicyclic and / or metal alcoholate is called the second stage process.
- the catalyst used in the first stage process is referred to as the first stage reaction catalyst.
- 1st stage A solid component present in the reaction slurry obtained from the process is referred to as an insoluble component.
- the insoluble component may be partially contained in the phosphonitrile dichloride depending on the type of solvent used in the first step, the solid-liquid separation method performed after the first step, and the temperature. .
- the catalyst used in the second stage process is referred to as a second stage reaction catalyst.
- the present invention is characterized by the following.
- a metal arylate and / or metal alcohol composed of at least two kinds of metals having different ionization energies is used.
- a specific compound is used as a catalyst in the production of a phosphonitrile ester from phosphonitrile dichloride and a metal arylate and / or a metal alcoholate, [3] a phosphonitrile dichloride and a metal arylate and / Or when producing a phosphonitrile ester from a metal alcoholate, the insoluble component obtained from the first step is used as a catalyst.
- Phosphononitrile dichloride and metal alicyclic and / or metal alcohol are continuously fed into the reactor, and the resulting phosphonitrate ester is fed into the reactor from a different location from the feed port of the raw material.
- the phosphonitrile ester is produced continuously by drawing out.
- the reaction of the phosphonitrile dichloride with the metal arylate and / or metal alcoholate is achieved by using a metal arylate and / or metal alcoholate comprising at least two kinds of metals having different ionic energy.
- the phenols used in the metal arylate of the present invention are monovalent phenols and / or divalent phenols in which M in the general formulas (2) and (3) is a hydrogen atom.
- M in the general formulas (2) and (3) is a hydrogen atom.
- the number of substituents other than one hydroxyl group is 0 to 5, and the substituent has 1 carbon number. It has an aliphatic hydrocarbon group of ⁇ 10 or an aromatic hydrocarbon group of 6 to 10 carbon atoms.
- Divalent phenols include aliphatic hydrocarbon groups having 1 to 10 carbon atoms or aromatic hydrocarbon groups having 6 to 10 carbon atoms other than two hydroxyl groups, including 1 to 10 carbon atoms. It is what you have.
- Specific examples of monovalent phenols include phenol, 1_naphthol, 2_naphthol, 4_phenol, o_cresol, m_cresol, p-cresolole, o-echenolevenore, m— Echino-lenoenole, p-ethino-leunoenole, 0-propylphenol, m-propylphenol, p-propylphenol, o_isopropylphenol, m-isopropylphenol, p-isopropylphenol, o-butylphenol, m _Butylphenol, p_Butylphenol, o_ (2_Methylpropinole) phenol, m_ (2_Met
- phenol, 1-na Phthol, 2-naphthol, 4-phenolphenol, o-cresol, m-cresol, p-cresol, 2,3-xylenol, 2,4-xylenol, 2,5-xylenol, 2,6-xylenol, 3, 4-xylenol and 3,5-xylenol are preferred.
- Divalent phenols include, for example, hydroquinone, 2,2_bis (4'_oxyphenyl) propane (bisphenol), catechol, 1,2-dihydroxynaphthalene, 1,8-dihydroxynaphthalene, 2,3- Dihydroxynaphthalene, 3,4-dihydroxynaphthalene, o, o-biphenol and the like are preferable.
- the alcohol used in the metal alcoholate of the present invention is the general formula (4)
- alcohols having an aliphatic hydrocarbon group having 1 to 10 carbon atoms in which M is a hydrogen atom.
- M is a hydrogen atom.
- Nonoreno 3-ethyl-2-methylpropanol, 3-isopropylpropanol, n-heptanol, n-octanol and the like.
- phenols and alcohols may be used alone, or a plurality may be used in combination at an arbitrary ratio. When a plurality of phenols and alcohols are used, it goes without saying that there are two or more types of aryloxy groups or alkoxy groups in the product.
- the metal aryidate represented by the general formula (2) or (3) and the metal alcoholate represented by the general formula (4) are phenols or alcohols IA, IIA, respectively.
- the metal arylate and Z or metal alcoholate used in the present invention are ions selected from these elements.
- the coloring of the product phosphonitrile ester is preferably reduced.
- the ionization energy in the present invention is the minimum energy (first ionization energy) necessary to extract one electron from a metal element, and is one of the basic physical properties of a substance. .
- the unit is eV (electron volts).
- the ionic energies for Li, Na, K, Rb, and Cs are 5.392, 5.139, 4.341, 4.177, and 3.894 (eV), respectively.
- the reactivity of the second stage process is dramatically improved by using two or more kinds of metal elements having different ion energy.
- the metal element of the salt used in the present invention preferably has an ionization energy of 8. OeV or less.
- An element selected from Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu is preferable.
- Li, Na, K, R b, Cs, Mg, Ca, Sr, Ba, Al, Ga, In, Tl, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, T b, Dy, Lu Elements selected from among them are more preferred.
- Elements selected from the medium forces of Li, Na, K, Rb, Cs, and Ca are particularly preferable.
- the most preferable form in the present invention uses phenols and / or alcohols sodium salt as a raw material, and is selected from among the phenols and / or alcohols, such as lithium salt, rubidium salt and cesium salt. It is a method to use at least one kind.
- the amount of sodium alcoholate and / or sodium alcoholate used is the same as that of the phosphonitrile dichloride.
- the amount is 0.1 to 2.0 mol, preferably 0.5 to 1.5 mol with respect to 1 mol.
- At least one selected amount selected from potassium alcoholate, potassium alcoholate, rubidium alcoholate, rubidium alcoholate, cesium alcoholate and cesium alcoholate used in combination is a chloronitrile dichloride group 1 0.0001 to 1.0 mole with respect to mole Preferably, it is 0.001 to 0.5 mol.
- Use amount of at least one selected from potassium, rubidium and cesium salts of the phenols and / or alcohols Power Less than 0.0001 mol with respect to 1 mol of chloronitrile group in phosphonitrile dichloride. In the case of a solution, it is difficult to obtain the effect of improving the reactivity by using potassium salt, rubidium salt or cesium salt in combination. On the other hand, if the amount is more than 1.0 mol, unreacted metal gallate or metal alcoholate remains, which increases the content of phenols and alcohols in the product and wastewater wastewater. It is.
- metals such as sodium hydroxide, potassium hydroxide, rubidium hydroxide, cesium hydroxide, sodium carbonate, sodium hydrogen carbonate, potassium carbonate, potassium hydrogen carbonate, norebidium carbonate, rubidium hydrogen carbonate, cesium carbonate, cesium hydrogen carbonate, etc.
- a hydroxide or metal carbonate may be reacted with phenols or alcohols, and the generated water may be removed under heating or decompression to form a metal liprate or metal alcoholate.
- the metal may be directly reacted with phenols or alcohols to form a metal arylate or metal alcoholate.
- the phosphonitrile dichloride used as a raw material in [1] to [3] of the present invention may be cyclic or chain-shaped.
- a mixture containing each component in any ratio can be used.
- the method for producing phosphonitrile dichloride is not limited, and phosphonitrile dichloride produced by any method can be used.
- phosphonitrile dichloride containing cyclic and chain products made from ammonium chloride and phosphorus pentachloride, or ammonium chloride, phosphorus trichloride and chlorine can be used.
- cyclic phosphonitrile dichloride obtained by treating phosphonitrile dichloride with a hydrocarbon solvent to remove the chain may be used, or cyclic 3, 4 amounts by recrystallization purification or sublimation purification.
- Phosphononitrile dichloride having an increased body content may be used.
- the reaction solvent used in [1] to [3] of the present invention is not particularly limited.
- aromatic hydrocarbons and halogenated hydrocarbons are particularly preferred.
- toluene, xylene, monochrome benzene, 1, 2-dichloro benzene, 1, 3-dichloro benzene, 1, 4-dichloro benzene 1, 2, 3_triclo benzene, 1, 2, 4_ Trichrome mouth benzene, 1, 2, 5 _ Triclo mouth benzene is preferred.
- These solvents may be used alone, or may be used by combining a plurality of them at an arbitrary ratio.
- the amount of the reaction solvent to be used is preferably 0.1 to 100 parts by mass, more preferably 1 to 20 parts by mass with respect to 1 part by mass of phosphonitrile dichloride.
- the amount of reaction solvent used is less than 0.1 parts by mass, the concentration of the raw material in the reaction system becomes high, the reaction solution becomes viscous and efficient stirring becomes difficult, resulting in a decrease in reactivity. It is not preferable.
- the amount is more than 100 parts by mass, it is not economically preferable, such as an increase in utility costs and an increase in equipment.
- the compound used as a reaction catalyst in the second step is represented by the following general formula (17).
- X represents a halogen atom
- p is an integer of 0 to: 10
- q is an integer of 1 to 10
- r is an integer of:! To 35.
- A is an element selected from the group consisting of elements of group IIA, IIIA, IVA, VA, VIA, IIB, IIIB, IVB, VB, VIB, VIIB, and VIII.
- Mg Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Ga, Si, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Er, Yb Al, Co, Cu, Zn, Gd force S are more preferable, Mg, Co, Cu, Zn force S are particularly preferable.
- the catalyst is MgCl, NH MgCl, A1C1, NH A1C1, (NH) A1C1.
- GdCl is preferred.
- ZnCl, (NH) ZnCl, and (NH) ZnCl are more preferable.
- ZnCl and (NH) are particularly preferable because they accelerate the reaction.
- These catalysts may be used alone or in combination of two or more in any ratio.
- the amount of the catalyst to be used is preferably 10_5 to 1 mole, more preferably 5 ⁇ 10 10 1 mole, relative to 1 mole of phosphonitrile dichloride.
- the insoluble component used as a reaction catalyst in the second step is an excess of ammonium chloride relative to chlorinated phosphorus in the phosphonitrile dichloride production reaction, It is a solid component present in the reaction slurry after reacting chlorinated phosphorus and ammonium chloride in the presence of the reaction catalyst in the first step.
- the phosphonitrile dichloride is isolated by removing insoluble components and the reaction solvent from the reaction slurry, and the content of the cyclic phosphonitrile dichloride oligomer is increased by distillation or recrystallization. Is common.
- the compound used as the first stage reaction catalyst is a metal oxide or a metal chloride.
- the types of metals for example, Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, V, Nb, Cr, Mo, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd , Pt, Cu, Ag, Au, Zn, Cd, Hg, Al, Ga, In, Tl, Si, Ge, Sn, Pb, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy , Ho, Er, Tm, Yb, Lu, etc.
- Mg, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Ga, In, Si, La, Ce, Pr, Nd, Sm, Gd, Dy, Ho, Er, Yb preferable.
- zinc oxide, magnesium oxide, aluminum oxide, cobalt oxide, copper oxide, zinc chloride, magnesium chloride, aluminum chloride, cobalt chloride, copper chloride, and zinc chloride are preferred. preferable.
- These catalysts may be used alone or in combination of two or more in any ratio.
- the amount of first-stage catalyst, relative to the chlorinated phosphorus to 1 mole preferably 10 one 5 to 1 mol, more preferably 10_ 3 -: 10 _1 moles.
- the insoluble component is a solid component isolated from the reaction slurry. The details of this insoluble component are presumed to be produced from excess ammonium chloride, which is unknown, and the catalyst component used in the production of phosphonitrile dichloride.
- the insoluble component may be partially dissolved in the solvent depending on the solvent used in the first stage reaction and the reaction temperature.
- the method for isolating insoluble components from the reaction solution is not particularly limited, and is performed for separating solids and liquids such as vacuum filtration or pressure filtration, centrifugation, and decantation at room temperature or under heating. It can implement by the conventionally known method.
- the insoluble component isolated from the reaction slurry may be stored as it is and used at the time of producing the phosphonitrate, or may be stored after drying. There are no particular restrictions on the method for drying the insoluble component. For example, a method of drying at 20 to 150 ° C. for several hours using a hot air dryer or a vacuum dryer can be mentioned. Since the insoluble component contains salt hyamonium as a main component and has hygroscopicity, it is preferably stored in an atmosphere with low humidity.
- the second-stage reaction catalyst is charged into the reaction system by removing water by azeotropic dehydration to obtain a metal arylate and Z or metal Prepare alcoholate It is preferable to be carried out after.
- the charging method it may be added to a slurry comprising the prepared metal arylate and / or metal alcoholate, or it may be added to a solution in which phosphonitrile dichloride is dissolved in the reaction solvent. Also good.
- pyridine, quinoline and derivatives thereof can be used in combination as a conventionally known method.
- pyridine derivatives include 2-hydroxypyridine, 3-hydroxypyridine, 4-hydroxypyridine, 2,6-dihydroxypyridine, 3-hydroxy-1-6-methylpyridine, 2_closed pyridine, 3_closed pyridine, 2, Examples include 6-dichroic pyridine, 1-picoline, ⁇ -picoline, ⁇ -picoline, noretidine, methylethylpyridine, etc.
- quinoline derivatives include 2-methylquinoline, 3-methylquinoline, 4_methinorequinoline, 5_ Methinorequinoline, 6_methinorequinoline, 7-methinorequinoline, 8-methinorequinoline, 2_black mouth quinoline, 3—black mouth quinoline, 4—black mouth quinoline, 5—black mouth quinoline, 6 —black mouth quinoline, 2, 3—
- [0065] The greatest feature of [4] of the present invention is that phosphonitryl dichloride produced from chlorinated phosphorus and ammonium chloride is reacted in a halogenated aromatic hydrocarbon solvent in the presence of the reaction catalyst in the first step. It is to be used in the second stage process with metal aliquot and / or metal alcoholate that is not isolated from the slurry.
- the reaction solvent used in the first step in [4], that is, the production of phosphonitrile dichloride from chlorinated phosphorus and salt ammonium is preferably a halogenated aromatic hydrocarbon.
- halogenated aromatic hydrocarbons include monobromobenzene, monochlorobenzene, monofluororeobenzene, 1,2_dibromobenzene, 1,3_dibromobenzene, 1,4_dibromobenzene, 1,2-dichloropropene, 1 , 3—Dichlorobenzene, 1, 4—Dichlorobenzene, 1, 2—Difluorobenzene, 1,3—Difluorobenzene, 1,4_Diphenolobenzene, 2-bromochlorobenzene, 3-bromochlorobenzene , 4 Mouth-chlorobenzene, 2-funoleo-mouth benzene, 3-funoleo-mouth benzene, 4-fluo
- monochrome mouth benzene 1,2-dichroic mouth benzene, 1,3-dichroic mouth benzene, 1,4-dichloro mouth benzene, 1, 2, 3_triclo mouth benzene, 1, 2, 4_trichrome Mouth benzene, 1,2,5_trichloro mouth benzene Force S is preferable, 1,2-dichro mouth benzene, 1,3-dichloro mouth benzene, 1,4-dichro mouth benzene are more preferable.
- These halogenated aromatic hydrocarbons may be used alone or in combination of two or more at an arbitrary ratio.
- the amount of the reaction solvent used is preferably 0.1 to 100 parts by mass, more preferably: 20 to 20 parts by mass with respect to 1 part by mass of phosphorus chlorinated.
- the amount of the reaction solvent used is less than 0.1 parts by mass, the raw material concentration in the reaction system becomes high and the stirring efficiency is lowered, so that the amount of cyclic multimers and chains produced may increase.
- the amount of reaction solvent used exceeds 100 parts by mass, it may lead to an increase in utility costs and an increase in equipment.
- the first step is performed in the presence of a catalyst.
- the compound used as the catalyst is a metal oxide or a metal salt.
- the types of metals for example, Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, V, Nb, Cr, Mo, Mn, Fe, Ru, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, Al, Ga, In, Tl, Si, Ge, Sn, Pb, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd , Tb, Dy, Ho, Er, Tm, Yb, Lu, etc., among which Mg, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Al, Ga, In, Si, La, Ce, Pr, Nd, Sm, Gd, Dy , Ho, Er, Yb force S preferred.
- the amount of the catalyst to be used, relative to the chlorinated phosphorus to 1 mole, preferably 10 5-1 moles, more preferred properly is 10-3 ⁇ : a 10-mole. If the amount of the catalyst is less than 10 -5 mol or reaction may not proceed to completion, a long time is required until completion of the reaction. On the other hand, if more than 1 mole
- a catalyst conventionally used in addition to the above metal oxide or metal salt for example, a metal sulfide such as ZnS, Mg (OH )
- Metal hydroxides such as A1 (OH), Ba (CH COO), Zn [CH (CH) COO], etc.
- Layered silicates such as sulfonic acid metal salt, smectite, kaolin, my strength, tanorek, and wollastonite can be used.
- pyridine, quinoline and derivatives thereof can be used in combination as a conventionally known method.
- pyridine derivatives include 2-hydroxypyridine, 3-hydroxypyridine, 4-hydroxypyridine, 2,6-dihydroxypyridine, 3-hydroxymono6-methylpyridine, 2-chloropyridine, 3-chloropyridine, 2,6 dichloropyridine. , ⁇ -picoline, ⁇ -picoline, ⁇ -picoline, lutidine, methylethylpyridine, etc.
- the amount of pyridine, quinoline and their derivatives used is not limited, but is preferably 10 to 2 !:! Mol per mol of chlorinated phosphorus.
- the amount of water in the reaction system of the first stage process mentioned here means the amount of water contained in the reaction solution at the start of the reaction, and is insensitive to raw materials, catalysts, solvents, and reactions. This refers to the total amount of moisture contained in the active gas and moisture attached to the inside of the reactor.
- a dehydrating agent that is inert to the solvent such as molecular sieve, calcium hydride, sodium metal, diphosphorus pentoxide, calcium chloride salt, etc.
- a method of drying at 50 to 150 ° C. under normal pressure or reduced pressure using a hot air dryer or a vacuum dryer can be mentioned.
- a method of heating the inside of the reactor under normal pressure or reduced pressure a method of circulating a dry gas at room temperature or under heating, and the like can be mentioned.
- the reaction is preferably carried out in an atmosphere inert to the reaction, such as dry nitrogen or argon.
- salt / ammonium used in the first step in [4] of the present invention a commercially available product may be used as it is, or a commercially available product may be used as a low-powder powder.
- Salt ammonium produced by the reaction of hydrogen chloride and ammonia in the reaction system may be used.
- the preferred average particle diameter of ammonium chloride is 10 / im or less, more preferably 5 ⁇ or less, and even more preferably 2.5 / im or less.
- the method for pulverizing ammonium chloride is not limited.
- a ball mill, a stirring mill, a roller mill, a jet mill or the like can be used.
- Ammonium chloride has a hygroscopic property, and the hygroscopic property becomes particularly remarkable as it is finely pulverized. Therefore, even if pulverization is difficult, the particles are aggregated again and the effect of pulverization is obtained. It can no longer be obtained. Therefore, the pulverization is preferably performed in a dry atmosphere containing no moisture, and it is preferable to store the pulverization in a dry atmosphere even after pulverization.
- the ammonium chloride is sufficiently dried before pulverization.
- the drying method is not limited, but for example, using a hot air dryer or a vacuum dryer, And drying for about 1 to 5 hours. It is preferable to supply the ammonium chloride finely pulverized in a dry atmosphere as it is into the reaction system.
- the amount of ammonium chloride used is preferably an excess amount relative to chlorinated phosphorus.
- Chlorine phosphorus is preferably 1.0 to 2.0 monoleca, more preferably 1 05 ⁇ : 1. 5 mol.
- phosphorus pentachloride may be used as it is, or phosphorus trichloride and chlorine before the reaction or in the reaction system, White phosphorus and chlorine, chlorinated phosphorus obtained by reacting yellow phosphorus and chlorine, or the like may be used.
- phosphorus chlorochloride obtained by reacting phosphorus pentachloride and phosphorus trichloride with chlorine is preferable.
- the first step in [4] of the present invention is not particularly limited as long as the above reaction conditions are satisfied, and can be performed by various conventionally known methods.
- Examples include a method of supplying a catalyst with phosphorus trichloride and chlorine or white phosphorus and chlorine while heating and stirring.
- the reaction temperature is not particularly limited, but is preferably in the range of 100 to 200 ° C, more preferably 120 to 180 ° C. If the reaction temperature is less than 100 ° C, the reaction may not proceed or may take a long time to complete. If the reaction temperature exceeds 200 ° C, sublimation of chlorinated phosphorus increases, and the phosphonitrile dichloride oligomer Yield may decrease.
- an inert gas such as nitrogen may be circulated or a vacuum pump for the purpose of removing the generated hydrogen chloride gas from the reaction system. Even if the inside of the system is depressurized with a Nyaspirator.
- the progress of the first stage step can be confirmed by monitoring the amount of hydrogen chloride gas generated by the reaction of phosphorus chlorinated and ammonium chloride.
- the reaction may be considered complete when no more hydrogen chloride gas is generated, and stirring may be continued to complete the reaction.
- the second step in [4] of the present invention that is, phosphonitrile dichloride and metal
- the reaction with the Lily mouthrate and / or the metal alcoholate is carried out by isolating the phosphonitrile dichloride produced by the first stage process from the reaction slurry of the first stage process. It is carried out by reacting with a re-diprate and / or a metal alcoholate.
- reaction slurry containing phosphonitrile dichloride produced from the reaction of chlorinated phosphorus and salt ammonium in the first step is used.
- the reaction slurry referred to in the present invention refers to the following, and if necessary, the solvent can be concentrated by distilling off the solvent from the following reaction slurry, and it can be dried.
- reaction solution a A reaction slurry containing phosphonitrile dichloride (hereinafter referred to as reaction solution a), which is not subjected to any operation after the first step.
- reaction solution b A solution obtained by filtering the reaction slurry containing the above phosphonitrile dichloride to remove excess ammonium chloride (hereinafter referred to as reaction solution b).
- reaction solution a that does not filter excess ammonium chloride or a solution obtained by partially distilling off the solvent from the reaction solution a. .
- the phosphonitrile dichloride produced in the first step is not isolated and purified from the reaction slurry in the first step.
- Reaction fluid power An operation of distilling off the solvent, adding a hydrocarbon solvent to the concentrated or dried component, precipitating a chain, and separating the chain and the ring,
- n represents an integer of 3 or more.
- the phosphonitrile dichloride used in the second stage step in [4] of the present invention is the same as the metal derived from the first stage reaction catalyst used in the first stage process with respect to 1 mol of phosphonitrile dichloride. , 1 X 10_ 6 mol or more, preferably 1 X 10_ 5 moles or more, further preferable properly preferably contains IX 10_ 4 mol or more. When the metal from the first-stage reaction catalyst is less than 1 X 10_ 6 moles is not preferable because it takes a long time until the reaction was complete in the second stage process. Further, the phosphonitrile dichloride may be cyclic or linear.
- a mixture containing each component in any ratio there can be used a mixture containing each component in any ratio.
- Solvents used in the second step in [4] of the present invention are toluene, ethylbenzen, 1,2-xylene, 1,3-xylene, 1,4-xylene, 1-methyl-1,2 —Ethylbenzene, 1_Methyl_3_Ethylbenzene, 1_Methyl_4_Ethylbenzene, Chlorophenol, Tetrahydrofuran, Benzene, Dioxane, Dimethylformamide, Dimethylacetamide, Acetonitrile Monoclonal Benzene, 1,2-Dichlorodiethylbenzene, 1 , 3-Dichloro-mouth benzene, 1,4-Dichloro-mouth benzene, 1,2,3_Triclo mouth benzene, 1,2,4_Triclo mouth benzene, 1,2,5_Triclo mouth benzene are preferred.
- monochrome-mouthed benzene 1,2-dichlorobenzene
- More preferred are 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2,3-trichlorobenzene, 1,2,4-trichlorobenzene, 1,2,5-trichlorobenzene.
- 1,2-dichroic benzene, 1,3-dichroic benzene, and 1,4-dichroic benzene are particularly preferred.
- the amount of the reaction solvent used is preferably 0.1 to 100 parts by mass with respect to 1 part by mass of the phosphonitryl dichloride as the total amount with the reaction-terminated liquid in the first step. More preferably: from 20 to 20 parts by mass.
- the amount of the reaction solvent used is less than 0.1 parts by mass, the concentration of the raw material in the reaction system becomes high, the reaction solution becomes viscous, and efficient stirring becomes difficult. Absent.
- the amount is more than 100 parts by mass, it is not economically preferable because of an increase in utility costs and an increase in equipment size.
- the metal arylate represented by the following general formula (13) or (14) and the metal alcoholate represented by the general formula (15) used in [4] of the present invention are the above-described [1]
- the same compounds as those in the general formulas (2), (3), and (4) can be used, and phenols or alcohols can be prepared in the same manner.
- the raw materials may be mixed in advance before the raw materials are supplied into the reactor. Further, for the purpose of improving the convection in the reactor, a filler inert to the reaction may be introduced, or publishing may be performed with a gas inert to the reaction.
- the feed rate of the raw material depends on the shape of the reactor, but the feed amount of phosphonitrile dichloride per reactor lm 3 is preferably from 0.:! To 10 5 mol / hr.
- reaction solvent in [5] the same solvents as in the above [1] to [3] are used.
- the allowable amount of water in the reaction system is 0.5 mol or less, preferably 0.2 mol or less, more preferably 0.05 mol or less, per 1 mol of phosphonitrile dichloride.
- the amount of water in the reaction system is less than 0.5 mol per 1 mol of phosphonitrile dichloride, the azeotrope of water and the reaction solvent may cause a decrease in the reactivity, without lowering the reaction temperature.
- the hydrolysis of phosphonitrile dichloride is suppressed, and the formation of monohydroxy compounds is suppressed.
- the amount of water in the reaction system as used herein refers to the amount of water contained in the reaction liquid when phosphonitrile dichloride is reacted with the metal alkoxide and / or metal alcoholate. That is, it refers to the total amount of raw material, catalyst, solvent, moisture contained in a gas inert to the reaction, and moisture attached to the inside of the reaction apparatus. Further, the water content is generated when a metal alcoholate or metal arylate is prepared by reacting an alcohol or phenol with an alkali metal hydroxide when starting an alkoxylation reaction or an aryloxylation reaction. Water is also included. In the present invention, it is particularly important to remove water generated when preparing the metal alcoholate metal mouthpiece. Generate It is preferable to control the amount of water remaining in the reaction system by removing water from the reaction system by azeotropic distillation with the reaction solvent.
- the second stage process of phosphonitrile dichloride and metal arylate and / or metal alcoholate in [1], [2], [3], [4], [5] of the present invention has been conventionally known. It can be carried out by various methods that have been proposed. For example, in a reaction slurry of metal aliquot and Z or metal alcoholate prepared by reacting metal hydroxide with phenols and / or alcohols in a reaction solvent and removing water by azeotropic dehydration. In addition, a solution obtained by dissolving phosphonitrile dichloride in a reaction solvent may be dropped and reacted.
- a metal aliquot and / or metal alcoholate prepared in advance may be suspended in a reaction solvent, and a solution in which phosphonitrile dichloride is dissolved in the reaction solvent may be dropped to cause the reaction.
- the reaction can be effected by dropping the slurry into a solution obtained by dissolving phosphonitrile dichloride in a reaction solvent.
- the reaction temperature in the second step is not particularly limited, but is preferably in the range of 50 to 200 ° C, more preferably 120 to 185 ° C. If the reaction temperature is lower than 50 ° C, the reaction does not proceed or it takes a long time to complete the reaction. If the reaction temperature is higher than 200 ° C, hydrolysis of phosphonitrile dichloride is significant. Or sublimation, which is undesirable.
- the phenols used in the method for producing a phosphonitrile ester of the present invention may be oxidized by oxygen in the air to produce a colored component. Therefore, the second step is preferably performed in an inert atmosphere such as nitrogen or argon or in an air stream.
- the reaction solution may be washed with distilled water to remove salts generated during the reaction, and then the reaction solvent may be distilled off to recover the phosphonitryl ester. It is also possible to remove the excess phenols and alcohols by washing the reaction solution with alkaline water or distilling under reduced pressure, etc., and then washing it to recover the phosphonitrile ester.
- the recovered reaction product can be purified by recrystallization from an appropriate solvent.
- a phosphonitrile ester having a desired composition can be obtained by selecting a solvent for recrystallization purification.
- the composition of the cyclic chlorophosphazene oligomer was determined by an internal standard method by GPC measurement.
- the shortage is a component or linear body derived from unreacted chlorinated phosphorus.
- the end point of aryloxylation and / or alkoxylation reaction was determined by high performance liquid chromatography (hereinafter abbreviated as HPLC).
- HPLC high performance liquid chromatography
- the ratio of the monochromatic mouthpiece and the monohydroxy body was determined by the ratio of the peak area obtained from 31 P-NMR.
- the degree of coloration of the synthesized phosphonitrate was determined by UV-Vis measurement.
- HPLC 8020 manufactured by Tosohichi Corporation
- Measuring method Water vaporization Coulometric titration method
- a sample was loaded into a sample boat, placed in VA-100 heated at 120 ° C, and water evaporated by nitrogen flow at 300 ml / min was introduced into the titration cell, and the amount of water was measured.
- the yields of phosphonitrate esters in Examples and Comparative Examples in the present invention are defined as the yields of phosphonitrate esters based on phosphonitrile dichloride as a raw material. More specifically, it is calculated from (mol number of phosphonitrile ester recovered after reaction) / (mol number of phosphonitrile dichloride introduced before reaction) ⁇ 100.
- the recovery rate is judged to be good when the yield of phosphonitrate is 98% or more.
- Salt and water # & 5.0 g (0.037 mol) and salt ammonium 5.9 g (0.1 lOmol) were charged into a 50 ml eggplant type flask, and 50 ml of distilled water was added. Heating reflux was performed in an oil bath at 110 ° C for 1 hour. After cooling to room temperature, water was removed with a rotary evaporator and dried for 5 hours with a 110 ° C vacuum dryer. As a result, 10.7 g of white powder was obtained.
- reaction solution was collected with a microsyringe, and the amount of water was measured. As a result, it was found to be 0.001 mole per mole of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 175 ° C. The reaction was followed by HPLC (same below), and the reaction was terminated 4 hours after the reaction system reached 170 ° C (same below). After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and then neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure. As a result, 7.17 g of the reaction product (yield 98.7% converted from phosphonitrile dichloride) was obtained. 31 P_NMR measurement results and UV_Vis measurement results are shown in Table 1.
- Example 2 In a 200 ml four-necked flask equipped with a stirrer, condenser, dropping funnel and thermometer, phenolate 7.05 g (0.075 mol), sodium hydroxide 2.76 g (0.069 mol), acid cesium
- a solution prepared by dissolving 3.63 g (0.031 mol) of phosphonitrile dichloride in 25 g of o-dichroic benzene was added dropwise over 15 minutes.
- a part of the reaction solution was sampled with a microsyringe, and the water content was measured and found to be 0.015 mol per 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 150 ° C.
- the reaction was followed by HPLC, and the reaction was completed 3 hours after the reaction system internal pressure reached S175 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and then neutralized with dilute hydrochloric acid.
- Cesium phenoxide and sodium phenoxide were prepared by adding 0093 g (0.06 mmol) and o-dichlorobenzene 30 g, and performing azeotropic dehydration under a nitrogen stream at an oil bath temperature of 190 ° C. After being allowed to cool to room temperature, 0.15 g (0.05 mmol) of (NH 3) ZnCl prepared was added.
- a solution prepared by dissolving 3.63 g (0.031 mol) of phosphonitrile dichloride in 25 g of o-dichlorobenzene was added dropwise over 15 minutes.
- a part of the reaction solution was sampled with a microsyringe, and the water content was measured to be 0.004 mol per 1 mol of phosphonitrile dichloride. It was. Thereafter, heating was performed at an oil bath temperature of 180 ° C.
- the reaction was followed by HPLC, and the reaction was completed 2 hours after the reaction system internal pressure reached S175 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and then neutralized with dilute hydrochloric acid.
- a solution prepared by dissolving 3.63 g (0.031 mol) of ril dichloride in 25 g of o-dichroic benzene was added dropwise over 15 minutes.
- a part of the reaction solution was collected with a microsyringe, and the amount of water was measured. As a result, it was 0. 017 mol per 1 mol of phosphonitrile dichloride.
- heating was performed at an oil bath temperature of 180 ° C.
- the reaction was monitored by HPLC, and the reaction was completed 2 hours after the reaction system reached 175 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid.
- a solution prepared by dissolving 3.63 g (0.031 mol) of ril dichloride in 25 g of o-dichroic benzene was added dropwise over 15 minutes.
- a part of the reaction solution was sampled with a microsyringe, and the water content was measured and found to be 0.018 mol per 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 180 ° C.
- the reaction was monitored by HPLC, and the reaction was completed 2 hours after the reaction system reached 175 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid.
- a solution prepared by dissolving 363 g (0.031 mol) of phosphonitrile dichloride in 25 g of o-dichlorobenzene was added dropwise over 15 minutes.
- a part of the reaction solution was sampled with a microsyringe, and the water content was measured and found to be 0.016 mol per 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 180 ° C.
- the reaction was monitored by HPLC, and the reaction was completed 1.5 hours after the reaction system internal pressure reached S175 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and then neutralized with dilute hydrochloric acid.
- Example 17 In a 200 ml four-necked flask equipped with a stirrer, condenser, dropping funnel, thermometer, phenol mononole 7.05 g (0.075 mol), sodium hydroxide 2.76 g (0.069 mol), acid 35Calcium 0.35g (0.0062mol) and xylene 20g were added, and the oil bath temperature was 150 under nitrogen flow. Sodium phenoxide and potassium phenoxide were prepared with C azeotropic dehydration.
- reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure. As a result, 7.14 g of reaction product (yield 98.3% converted from phosphonitrile dichloride) was obtained. It was.
- the results of d P-NMR measurement and UV-Vis measurement are shown in Table 1.
- Table 1 shows the results of 3 1 P-NMR measurement and UV-Vis measurement.
- reaction solution was collected with a microsyringe, and the water content was measured and found to be 0.021 mol per 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 180 ° C. The reaction was monitored by HPLC, and the reaction was completed 1 hour after the reaction system reached 175 ° C. The reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure. As a result, 6.80 g of a reaction product (yield 98.2% converted from phosphonitrile dichloride) was obtained. The 31 P NMR measurement results and UV-Vis measurement results are shown in Table 1.
- reaction solution was collected with a microsyringe, and the water content was measured. As a result, it was 0.019 monolayer to 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 175 ° C. The reaction was followed by HPLC, and the reaction was completed in 2 hours after the reaction system reached 170 ° C. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and then neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure. As a result, 7.15 g of the reaction product (yield 98.5% converted from phosphonitrile dichloride) was obtained. Table 2 shows the 31 P_NMR measurement results and UV-Vis measurement results.
- reaction solution was collected with microsyringe, and the water content was measured. As a result, it was found to be 0.017 mol per 1 mol of phosphonitrile dichloride. Thereafter, heating was performed at an oil bath temperature of 175 ° C. The reaction was monitored by HPLC, and the reaction was completed 12 hours after the inside of the reaction system reached 170 ° C. According to the HPLC measurement result, a monochrome mouth remained. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure.
- reaction solution was collected with a microsyringe, and the water content was measured and found to be 0.021 mol per 1 mol of phosphonitrile dichloride. Thereafter, the mixture was heated to reflux at an oil bath temperature of 150 ° C. At this time, the temperature in the reaction system was 141 ° C. The reaction was monitored by HPLC, and the reaction was completed 12 hours after the start of reflux. According to the result of HPLC measurement, a monochrome mouth remained. The reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid. Further, the reaction solution was washed with 50 ml of distilled water, and then the reaction solvent was distilled off under reduced pressure. As a result, 4.76 g of reaction product (converted from chlorophosphazene) Yield 95.2%). Table 2 shows the results of d P-NMR measurement and UV-Vis measurement.
- Mouth-ride 2.50 g (0.022 mol) dissolved in 15 g of dichlorobenzene was added dropwise over 10 minutes. A part of the reaction solution was collected with a microsyringe, and the amount of water was measured. As a result, it was 0.012 monolayer with respect to 1 mol of phosphonitrile dichloride. Thereafter, the mixture was heated and stirred at an oil bath temperature of 180 ° C. At this time, the temperature in the reaction system was 175 ° C. The reaction was monitored by HPLC, and the reaction was completed 12 hours after the reaction system reached 175 ° C. However, according to the HP LC measurement result, a monochrome mouth remained.
- the reaction was monitored by HPLC, and the reaction was completed 12 hours after the start of reflux. According to the HPLC measurement results, a monochrome mouth remained. After completion of the reaction, the reaction solution was washed twice with 50 ml of 10% aqueous potassium hydroxide solution and neutralized with dilute hydrochloric acid. Furthermore, the reaction solution was washed with 50 ml of distilled water, but the oil / water separation was generally poor. Thereafter, the reaction solvent was distilled off under reduced pressure. As a result, 4.69 g (yield 93.8% converted from phosphonitrile dichloride) of the reaction product was obtained. The results of 31 P-NMR measurement and UV-Vis measurement are shown in Table 2.
- composition ratio of 0.0% means that no peak was detected by NMR measurement
- composition ratio of 0.0% means that no beak was detected by NMF
- the value of Na salt in Comparative Example 9 is the phosphonitrile dic in the first step! This is the amount charged when the yield of 3 rides is determined to be 1003 ⁇ 4.
- sodium gallate and / or sodium alcoholate was used, and potassium gallate, potassium halocholate, cesium gallate and cesium. It can be seen that when at least one selected from alcoholates is used in combination, the reaction is completed very quickly and a phosphonitrate containing no monochrome mouthpiece is obtained. It can also be seen that the reaction is completed more quickly when the catalyst of the present invention is used in combination or when the reaction solution of the first step is used as it is for the second step.
- the method for producing a phosphonitrile ester of the present invention it is possible to produce a phosphonitrile ester having a very low monochrome mouthpiece content and little coloration in a very short time. Therefore, the reaction time can be shortened, the utility cost can be reduced, and the phosphonitrile ester can be produced at a lower cost. Therefore, industrially useful phosphonitrate esters can be produced with a low monochromatic mouthpiece content according to the present invention. In addition, the hydrolysis resistance and heat resistance of the phosphonitrile ester itself are improved, and further, the deterioration of the physical properties of the resin composition is suppressed. Therefore, phosphonitrile ester oligomers and various derivatives of phosphonitrate polymers can be expected to be used in a wider range of applications such as plastic and rubber additives, fertilizers, and pharmaceuticals.
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| CN110759947A (zh) * | 2019-11-07 | 2020-02-07 | 山东省海洋化工科学研究院 | 一种六苯氧基环三磷腈的合成方法 |
| CN111793092A (zh) * | 2020-07-07 | 2020-10-20 | 威海金威化学工业有限责任公司 | 一种六苯氧基环三磷腈的提纯方法 |
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| JPS4811700B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811702B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811703B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811699B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811701B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4840900A (ja) * | 1971-09-23 | 1973-06-15 | ||
| JPS4827316B1 (ja) * | 1970-12-29 | 1973-08-21 | ||
| JPS5841889A (ja) * | 1981-09-05 | 1983-03-11 | Otsuka Chem Co Ltd | 縮合したポリアルコキシホスフアゼン化合物の製造法 |
| JPH02502731A (ja) * | 1988-06-23 | 1990-08-30 | アメリカ合衆国 | トリスアリロキシシクロトリフォスファゼン重合体前駆体の異性体及び中間体の製造方法 |
| WO2004108737A1 (ja) * | 2003-06-05 | 2004-12-16 | Asahi Kasei Chemicals Corporation | ホスホニトリル酸エステルの製造方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116891A (en) * | 1976-12-06 | 1978-09-26 | Armstrong Cork Company | Catalytic process for the preparation of phosphazene polymers |
-
2006
- 2006-01-18 WO PCT/JP2006/300577 patent/WO2006077844A1/ja not_active Ceased
- 2006-01-18 JP JP2006553904A patent/JP4043043B2/ja not_active Expired - Fee Related
- 2006-01-18 US US11/795,686 patent/US20080091050A1/en not_active Abandoned
- 2006-01-20 TW TW095102290A patent/TW200643026A/zh not_active IP Right Cessation
-
2007
- 2007-07-18 GB GB0713986A patent/GB2436770A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4811700B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811702B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811703B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811699B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4811701B1 (ja) * | 1970-12-28 | 1973-04-14 | ||
| JPS4827316B1 (ja) * | 1970-12-29 | 1973-08-21 | ||
| JPS4840900A (ja) * | 1971-09-23 | 1973-06-15 | ||
| JPS5841889A (ja) * | 1981-09-05 | 1983-03-11 | Otsuka Chem Co Ltd | 縮合したポリアルコキシホスフアゼン化合物の製造法 |
| JPH02502731A (ja) * | 1988-06-23 | 1990-08-30 | アメリカ合衆国 | トリスアリロキシシクロトリフォスファゼン重合体前駆体の異性体及び中間体の製造方法 |
| WO2004108737A1 (ja) * | 2003-06-05 | 2004-12-16 | Asahi Kasei Chemicals Corporation | ホスホニトリル酸エステルの製造方法 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019049872A1 (ja) * | 2017-09-06 | 2019-03-14 | 大塚化学株式会社 | 環状クロロホスファゼン3量体の製造方法 |
| JPWO2019049872A1 (ja) * | 2017-09-06 | 2020-10-15 | 大塚化学株式会社 | 環状クロロホスファゼン3量体の製造方法 |
| JP7134979B2 (ja) | 2017-09-06 | 2022-09-12 | 大塚化学株式会社 | 環状クロロホスファゼン3量体の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI361193B (ja) | 2012-04-01 |
| GB0713986D0 (en) | 2007-08-29 |
| GB2436770A (en) | 2007-10-03 |
| JPWO2006077844A1 (ja) | 2008-06-19 |
| JP4043043B2 (ja) | 2008-02-06 |
| US20080091050A1 (en) | 2008-04-17 |
| TW200643026A (en) | 2006-12-16 |
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