EP4153579A1 - Dérivés de xanthène, mélanges le comprenant, procédé de fabrication et utilisations correspondants - Google Patents
Dérivés de xanthène, mélanges le comprenant, procédé de fabrication et utilisations correspondantsInfo
- Publication number
- EP4153579A1 EP4153579A1 EP21732456.5A EP21732456A EP4153579A1 EP 4153579 A1 EP4153579 A1 EP 4153579A1 EP 21732456 A EP21732456 A EP 21732456A EP 4153579 A1 EP4153579 A1 EP 4153579A1
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- EP
- European Patent Office
- Prior art keywords
- formula
- compound
- mixture
- reaction
- compounds
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/78—Ring systems having three or more relevant rings
- C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans
- C07D311/82—Xanthenes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
- C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D311/78—Ring systems having three or more relevant rings
- C07D311/80—Dibenzopyrans; Hydrogenated dibenzopyrans
- C07D311/82—Xanthenes
- C07D311/84—Xanthenes with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached in position 9
- C07D311/86—Oxygen atoms, e.g. xanthones
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent materials, e.g. electroluminescent or chemiluminescent
- C09K11/06—Luminescent materials, e.g. electroluminescent or chemiluminescent containing organic luminescent materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2211/00—Chemical nature of organic luminescent or tenebrescent compounds
- C09K2211/10—Non-macromolecular compounds
- C09K2211/1018—Heterocyclic compounds
Definitions
- the invention relates to the field of xanthene derivatives.
- the invention relates to a family of particular xanthene derivatives, a method of manufacture as well as corresponding uses.
- Xanthene and its derivatives are known as chromophores.
- Xanthene has the chemical formula:
- a derivative of xanthene, particularly known for its fluorescent properties, is fluorescein, with the chemical formula:
- Fluorescein and its derivatives have been used in many fields, in particular as tracers to color water or as markers for biological molecules (peptides, antibodies, nucleotides, oligonucleotides, hormones, lipids, etc.).
- markers for biological molecules peptides, antibodies, nucleotides, oligonucleotides, hormones, lipids, etc.
- fluorescein or its derivatives are generally grafted by covalent bond to the molecule of interest, most often by virtue of a group which reacts with the amine functions.
- the aim of the invention is to provide a new family of xanthene derivatives as well as several associated uses.
- the objective is to provide compounds which have fluorescence properties.
- the objective is to provide compounds which can be used as radical initiators.
- the objective is to provide compounds which make it possible to improve the adhesion of an aromatic or semi-aromatic polymer matrix with a substrate.
- the objective of the invention is to provide compounds which allow the improvement of the compatibility between an aromatic or semi-aromatic polymer matrix and another aromatic, semi-aromatic, or aliphatic polymer matrix.
- the objective of the invention is also to provide a process for manufacturing this new family of xanthene derivatives.
- the aim of the invention is also to provide possible uses for this new family of derivatives.
- the invention relates to a compound having the chemical formula:
- R ° denotes: a charge +, -H or -OH; i, is an integer having a value of 0 to 3; j, k and I are integers independently having a value of 0 to 4; for all i, R ⁇ , for all j, Rf, for all k, Rl, for all I, R ⁇ are independently selected from the list consisting of: alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester , in particular carboxylic ester, amide, in particular primary amide, halogen, imide, nitro and aliphatics comprising a nitro, nitrile and aliphatic function comprising a nitrile, carbonyl, alkali metal or alkaline earth metal sulphonate, alkylsulphonate, alkali metal or alkaline phosphonate function -terreux, amine and quaternary ammonium.
- said i, j, k and I are all 0.
- R ° is: -OH.
- R ° is: -H. According to some embodiments, R ° is: +.
- the invention also relates to a process making it possible in particular to obtain the compound of formula (I) and / or (II).
- the method comprises reacting a compound of formula (III) with a compound of formula (IVa) or (IVb), in the presence of a Lewis acid.
- the compound (III) has the chemical formula:
- the compound (IVa) has the chemical formula: [Chem 6]
- the compound (IVb) has the chemical formula: [Chem 7] wherein i, j, k, I, R ⁇ , Rf, /? £ and R are defined as above; to obtain a mixture of products comprising a compound as described above.
- said i, j, k and I are all 0.
- the reaction of the compound of formula (III) with the compound of formula (IVa), or respectively of formula (IVb), is carried out in a reaction solvent.
- the reaction solvent is preferably an aprotic solvent.
- the reaction solvent is more preferably selected from the group consisting of: dichloromethane, carbon disulfide, ortho-dichlorobenzene, meta-dichlorobenzene, para-dichlorobenzene, 1, 2,4-trichlorobenzene, 1, 2,3-trichlorobenzene, ortho-difluorobenzene, 1, 2-dichloroethane, 1, 1-dichloroethane, 1, 1, 2, 2-tetrachloroethane, tetrachlorethylene, dichloromethane, nitrobenzene and their mixture.
- the reaction solvent is most preferably ortho-dichlorobenzene.
- the Lewis acid is chosen from the group consisting of: aluminum trichloride, aluminum tribromide, antimony pentachloride, antimony pentafluoride, indium trichloride, Gallium trichloride, boron trichloride, boron trifluoride, zinc chloride, ferric chloride, stannic chloride, titanium tetrachloride and molybdenum pentachloride.
- the Lewis acid is chosen from the group consisting of: aluminum trichloride, boron trichloride, aluminum tribromide, titanium tetrachloride, antimony pentachloride, ferric chloride, gallium and molybdenum pentachloride.
- the Lewis acid is aluminum trichloride.
- the molar amount of compound of formula (III) relative to the molar amount of compound of formula (IVa), or respectively (IVb) is from 2 to 6.
- the molar amount of compound of formula (III) relative to the molar amount of compound of formula (IVa), or respectively (IVb), is from 2 to 4.
- the molar amount of Lewis acid relative to the sum of the molar amounts of compound of formula (III) and of compound of formula (IVa), or respectively (IVb), is from 0.25 to 2
- the molar amount of compound of formula (III) relative to the molar amount of compound of formula (IVa), or respectively (IVb) is from 0.3 to 1.5.
- the method comprises:
- the method comprises a solid / liquid separation step in order to recover a liquid mainly comprising the compound of formula (I), or respectively of formula (II), and a wet cake mainly comprising the compound of formula ( I), or respectively of formula (II).
- the invention also relates to a mixture of compounds comprising:
- the compound of formula (I) represents from 0.01 mol% to 10 mol% relative to the total number of moles of the compounds of formula (I), (IX-i) and ( IX-ii).
- the compound of formula (I) represents from 90 mol% to 99.99 mol% relative to the total number of moles of the compounds of formula (I), (IX-i) and ( IX-ii).
- the invention also relates to a mixture of compounds comprising:
- the compound of formula (II) represents from 0.01 mol% to 10 mol% relative to the total number of moles of the compounds of formula (II), (Xi) and (X- ii).
- the compound of formula (II) represents from 90 mol% to 99.99 mol% relative to the total number of moles of the compounds of formula (II), (Xi) and (X- ii).
- the invention relates to the use of a compound of formula (I) or (II) as a chromophore, as a generator of free radicals, or as an adhesion promoter and / or coupling agent.
- FIG. 1 represents a first reaction scheme making it possible to obtain the desired compound of formula (V) from a mixture of diphenyl ether and terephthaloyl chloride in the presence of aluminum trichloride.
- FIG. 2 represents an alternative reaction scheme to that presented in FIG. 1 making it possible to obtain the desired compound of formula (V) from a mixture of diphenyl ether and terephthaloyl chloride in the presence of aluminum trichloride.
- FIG. 3 represents a reaction scheme making it possible to obtain the compound of formula (VIII), resulting from the predominantly concurrent reaction, from a mixture of diphenyl ether and terephthaloyl chloride in the presence of aluminum trichloride.
- FIG. 4 represents the FIPLC / MS chromatogram of the mixture obtained according to Example 1, essentially containing the compound of formula (V).
- the x-axis represents an elution time and is expressed in minutes (min).
- the y-axis represents the abundance of ions and is expressed in arbitrary milli-units (mAU).
- FIG. 5 represents the mass spectrum of the mixture obtained according to Example 1 containing essentially the compound of formula (VI) by HPLC / MS.
- the x-axis represents an elution time and is expressed in minutes (min).
- the y-axis represents the abundance of ions and is expressed in arbitrary milli-units (mAU).
- FIG. 6 represents the UV / IR absorbance spectrum of the compound of formula (V).
- the x-axis represents wavelengths, expressed in nanometers (nm).
- the y-axis represents absorbance (dimensionless).
- FIG. 7 represents the UV / IR absorbance spectrum of the compound in (V) form and / or in (VI) form at different pH.
- the x-axis represents wavelengths, expressed in nanometers (nm).
- the y-axis represents absorbance (dimensionless).
- the process comprises reacting a compound of formula (III) with a compound of formula (IVa), or respectively of formula (IVb), in the presence of a Lewis acid; the compound (III) being an aromatic ether having the chemical formula: [Chem 12] the compound (IVa) being an aromatic acyl chloride having the chemical formula:
- i is an integer having a value of 0 to 3
- j, k and I are integers independently having a value of 0 to 4
- R ⁇ are independently selected from the list consisting of: alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester , in particular carboxylic ester, amide, in particular primary amide, halogen, imide, nitro and aliphatics comprising a nitro, nitrile and aliphatic function comprising a nitrile, carbonyl, alkali metal or alkaline earth metal sulphonate, alkylsulphonate, alkali metal or alkaline phosphonate function -terreux, amine and quaternary ammonium.
- R ⁇ are independently chosen from the list consisting of: alkyl, aryl, ether, thioether, acid carboxylic, ester, in particular carboxylic ester, amide, in particular primary amide, imide, nitro and aliphatics comprising a nitro, nitrile and aliphatic function comprising a nitrile, carbonyl, alkali metal or alkaline earth metal sulphonate, alkylsulphonate, alkali metal phosphonate or alkaline earth, and tertiary amine.
- R 0 l signifies that the benzene group on which the latter is positioned does not contain any substituent
- R ⁇ signifies that the benzene group on which the latter is positioned comprises exactly one substituent
- R 2 l means that the benzene group on which the latter is positioned comprises exactly two substituents, each of the two substituents being able to be chosen independently of one another, and so on.
- the process comprises reacting diphenyl ether with terephthaloyl chloride or isophthaloyl chloride in the presence of a Lewis acid, for example aluminum trichloride (AICI3).
- AICI3 aluminum trichloride
- the inventors believe that the reaction making it possible to obtain compounds according to the invention takes place according to the reaction scheme of Figure 1 and / or according to the reaction scheme of Figure 2.
- the Reaction diagrams of Figures 1 and 2 represent the example of a mixture of diphenyl ether and terephthaloyl chloride in the presence of aluminum trichloride, but cannot be limiting to these compounds alone.
- the ortho and para positions of the phenyl groups of diphenyl ether are particularly activated by the mesomeric effect, which would explain that the electrophilic substitutions mainly take place in the para and ortho position.
- the reaction according to Figures 1 and 2 involves two inter-molecular electrophilic substitutions and one intra-molecular electrophilic substitution (cyclization). More specifically, the reaction comprises an electrophilic inter-molecular substitution of a hydrogen of a phenyl group of a diphenyl ether molecule in the ortho position, followed by a 6-atom, intra-molecular cyclization of a hydrogen of 1. Another phenyl group of this diphenyl ether molecule also in the ortho position, as well as another inter- electrophilic substitution. molecular of a hydrogen of a phenyl group of another molecule of diphenyl ether in the ortho position.
- the compound below is then obtained, of formula:
- the aromatic ether of formula (III) has one hydrogen atom in the ortho position of each phenyl group.
- the aromatic ether of formula (III) it is further essential that the aromatic ether of formula (III) have a hydrogen atom in the para position of at least one phenyl group.
- the other positions of the phenyl group of the aromatic ether of formula (III) may or may not be substituted.
- Certain parameters may further promote the reaction making it possible to synthesize the compound according to the invention (of the reaction scheme type according to Figure 1 or Figure 2) compared to competing reactions (mainly of the reaction scheme type according to Figure 3).
- the ortho and para positions of the aromatic ether (III) can be more or less activated depending on the nature and the position of its possible substituents, due to their electro- donor or electron attractor.
- the reaction is carried out without a solvent.
- the reaction is then referred to as a bulk reaction.
- reaction is carried out in a reaction solvent.
- the reaction solvent is preferably an impractical solvent.
- a practical solvent is a solvent containing at least one hydrogen atom bonded to an oxygen atom or a nitrogen atom, and which is capable of giving protons to reactants.
- a non-protic solvent is a solvent which is not a protic solvent.
- the non-protic solvent used here can in particular be chosen from methylene chloride, carbon disulphide, ortho-dichlorobenzene, metadichlorobenzene, para-dichlorobenzene, 1, 2,4-trichlorobenzene, 1, 2 , 3-trichlorobenzene, ortho-difluorobenzene, 1, 2-dichloroethane, 1, 1, 2,2-tetrachloroethane, tetrachlorethylene, dichloromethane, nitrobenzene and mixtures thereof.
- Ortho-dichlorobenzene is the most preferred solvent.
- Lewis acids which can be used include, for example, aluminum trichloride, aluminum tribromide, antimony pentachloride, antimony pentafluoride, indium trichloride, gallium trichloride, trichloride of boron, boron trifluoride, zinc chloride, ferric chloride, stannic chloride, titanium tetrachloride and molybdenum pentachloride.
- Aluminum trichloride, boron trichloride, aluminum tribromide, titanium tetrachloride, antimony pentachloride, ferric chloride, gallium trichloride and molybdenum pentachloride are preferred.
- Aluminum trichloride is particularly preferred.
- the reaction between the compound of formula (III) and the compound of formula (IVa) or of formula (IVb) in the presence of a Lewis acid to produce a compound of formula (I) or (II) can be carried out in a reactor.
- the reaction can be carried out in a reactor.
- the reactor can for example be a glass reactor, a reactor whose internal wall is made of glass or else a reactor made of stainless metallic materials, or coated with PTFE.
- the materials introduced into the reactor in the process of the invention are essentially, or consist, of the compound of formula (III), of the compound of formula (IVa), or respectively of formula (IVb), of the solvent of reaction and Lewis acid.
- the reaction can be carried out in a reaction mixture essentially comprising no water.
- the reaction can be carried out in an atmosphere essentially comprising no water or oxygen, for example under a nitrogen or argon atmosphere.
- the reaction mixture can be prepared by mixing the components together (compound of formula (III), compound of formula (IVa), or respectively of formula (IVb), Lewis acid and reaction solvent) in any order.
- an initial mixture is first prepared, comprising (and preferably consisting of) the compound of formula (III) and the compound of formula (IVa), or respectively of formula (IVb), in the reaction solvent.
- the initial mixture can in particular be prepared by mixing the three compounds together, in any order.
- the reaction solvent can be introduced into the reactor first, then the compounds of formula (III) and of formula (IVa), or respectively of formula (IVb), can be added in turn.
- Lewis acid is then added to the initial mixture.
- the Lewis acid is added in solid form.
- Lewis acid can also be added as a suspension or as a colloid, i.e. as a heterogeneous mixture of solid particles of Lewis acid in a solvent.
- the solvent of the suspension / of the colloid is advantageously the aforementioned reaction solvent.
- Lewis acid can also be added as a solution, i.e. as a homogeneous mixture of Lewis acid in a solvent.
- the solvent of the solution is preferably the above-mentioned reaction solvent.
- an initial mixture is first prepared, comprising (and preferably consisting of) the compound of formula (IVa), or respectively of formula (IVb), and Lewis acid in the solvent of reaction.
- the initial mixture can be prepared by mixing the three compounds together, in any order.
- the compound of formula (III) is then added to the initial mixture. It can be added in its liquid form or as a solution, preferably in the aforementioned reaction solvent.
- an initial mixture is first prepared, comprising (and preferably consisting of) the compound of formula (III) and Lewis acid in the reaction solvent.
- the initial mixture can be prepared by mixing the three compounds together, in any order.
- the compound of formula (IVa), or respectively of formula (IVb) is then added to the initial mixture. It can be added in solid or liquid form. Alternatively, it can be added as a suspension, a colloid, or a solution, preferably in the aforementioned reaction solvent.
- the molar amount of compound of formula (IVa), or respectively of formula (IVb), relative to the sum of the molar amounts of reaction solvent, compound of formula (III), compound of formula (IVa), or respectively of formula (IVb), and Lewis acid introduced into the reactor is 2 to 11%, and preferably 3 to 8%;
- the molar amount of compound of formula (III), relative to the sum of the molar amounts of reaction solvent, compound of formula (III), compound of formula (IVa), or respectively of formula (IVb), and of Lewis acid introduced into the reactor is 5 to 40%, and preferably 8 to 25%;
- the molar amount of Lewis acid is 4 to 45%, and preferably 8 to 30%;
- the molar amount of compound of formula (III) relative to the molar amount of compound of formula (IVa), or respectively of formula (IVb), introduced into the reactor is from 2 to 6, and preferably from 2 to 4 ;
- the molar amount of Lewis acid relative to the sum of the molar amounts of compound of formula (III) and of compound of formula (IVa), or respectively of formula (IVb), introduced into the reactor is from 0.25 to 2, and preferably from 0.3 to 1.5.
- the reaction mixture is stirred for at least part of the reaction step.
- the reactor is preferably provided with a stirring device such as a mechanical stirrer (which may, for example, comprise one or more blades) or a recirculation loop comprising a pump.
- a stirring device such as a mechanical stirrer (which may, for example, comprise one or more blades) or a recirculation loop comprising a pump.
- the reaction step between the compound of formula (III) and the compound of formula (IVa), or respectively of formula (IVb) can be maintained, preferably with stirring, for a certain period of time, in order to complete the reaction. to the desired degree.
- the reaction mixture becomes referred to as a mixture of products.
- the product mixture comprises the desired product of the formula:
- the temperature of the reaction mixture is less than or equal to 79 ° C during at least part of the reaction.
- the temperature of the reaction mixture is less than or equal to 55 ° C, or less than or equal to 50 ° C, or less than or equal to 40 ° C, or less than or equal to 30 ° C, or less than or equal to 20 ° C, or less than or equal to 10 ° C, or less than or equal to 5 ° C, or less than or equal to 0 ° C, or less than or equal to -5 ° C, or less than or equal to -10 ° C.
- the temperature must in particular remain below the boiling point of the reaction solvent. To this end, it is possible, if necessary, to operate the reactor under pressure so that the temperature in the reactor can reach a higher value without boiling the solvent.
- the pressure in the reactor can range from 1 bar (atmospheric pressure) to 6 bar, preferably from 1.5 bar to 3 bar.
- reaction can be carried out at atmospheric pressure.
- the temperature of the reaction mixture can remain almost constant during the reaction. Alternatively, it can vary over the course of the reaction.
- the process according to the invention can comprise steps for recovering and purifying the compound of formula (I), or respectively of formula (II), from the mixture of products.
- the mixture of products may in particular contain Lewis acid, optionally unreacted reagents and optionally the product (s) resulting from the reaction. competitor of the type that of the reaction scheme according to Figure 3.
- the products resulting from the concurrent reaction of formulas (IX-i) and / or (IX-ii), respectively of formula (Xi) and / or (X-ii), are generally less soluble in the reaction solvent than the product desired of formula (I), or respectively of formula (II), is not.
- the desired reaction product is generally completely or almost completely solubilized in the reaction solvent
- the products resulting from the competing reaction are generally at least partially in the form of a precipitate.
- the mixture of products can be subjected to various treatments aimed at reducing their solubility as much as possible while having little or no effect on the solubility of the desired product.
- the mixture of products can be cooled.
- the cooling rate may for example be from 1 to 10 ° C / h, 10 to 20 ° C / h, or from 20 to 40 ° C / h, or from 40 to 60 ° C / h, or from 60 to 90 ° C / h, or 90 to 120 ° C / h, or 120 to 180 ° C / h, or greater than 180 ° C / h.
- the mixture of products can be subjected to a shear stress.
- the mixture of products can be subjected to the removal by distillation of part of the reaction solvent.
- the mixture of products can be subjected to the addition of a compound in solid form which acts as a seed for crystallization.
- the product mixture can be contacted with a decomplexation solvent, the decomplexation solvent being a protic solvent.
- the decomplexation solvent makes it possible to dissociate the complexes formed with the Lewis acid, in particular the complex formed with the desired product and the complexes formed with the products resulting from the competing reaction.
- the decomplexation solvent can be an organic solvent, such as methanol, acetic acid, formic acid, ethanol, isopropanol and benzyl alcohol.
- Methanol is preferred as an organic solvent.
- the decomplexation solvent can be an aqueous solution.
- an aqueous solution has a relatively high heat capacity. This allows for better dissipation of the heat generated during the highly exothermic dissociation of complexes formed with Lewis acid.
- the dissociated Lewis acid (as an ionic salt, metal hydroxide, metal alkoxide or any other compound resulting from the reaction of Lewis acid with the decomplexing solvent) is soluble in the aqueous phase. and therefore can be recovered from the aqueous solution.
- Mixtures of the above solvents can also be used, such as an aqueous-organic mixture, for example an aqueous solution mixed with methanol.
- the aqueous solution can simply be water.
- the aqueous solution can also be an acidic solution, such as a solution of hydrochloric acid, phosphoric acid, sulfuric acid, nitric acid, an organic acid such as formic acid and any combination of these.
- the aqueous solution can be a hydrochloric acid solution.
- the aqueous solution has a pH of less than 6, or less than 5, or less than 4, or less than 3, or less than 2, or less than 1, or less than 0.
- the aqueous phase has a pH ranging from 1 to 2.
- the decomplexation solvent can be an aqueous solution containing hydrochloric acid at a concentration corresponding to such pH values.
- the aqueous solution can also be a basic solution, such as a solution of caustic soda, potassium hydroxide, calcium hydroxide, sodium carbonate, calcium carbonate, magnesium carbonate, potassium carbonate. , ammonia or their mixtures.
- the aqueous solution preferably has a pH greater than 9, or greater than 10, or greater than 11, or greater than 12, or greater than 13, or greater than 14.
- the decomplexing solvent has a pH ranging from 12 to 14.
- the decomplexation solvent can be an aqueous solution containing NaOH at a concentration corresponding to such pH values.
- a solid / liquid separation can be carried out either directly on the mixture of products obtained at the end of the reaction, or on the mixture of products having undergone a step (s) to promote the precipitation of reaction products. competitors and / or a decomplexation step. A pasty cake and a liquid, in the form of at least one phase, are then obtained.
- the temperature during the solid / liquid separation preferably does not exceed 79 ° C. More preferably, the temperature during the solid / liquid separation does not exceed 60 ° C. More preferably still, the temperature during the solid / liquid separation does not exceed 30 ° C.
- the solid / liquid separation can be carried out in one or more successive stages, each stage being chosen from the group consisting of: centrifugal filtration, sedimentation, centrifugal decantation, vacuum filtration, pressure filtration and gravity filtration .
- the solid / liquid separation can comprise a step carried out by centrifugal filtration, in a centrifugal filtration device.
- centrifugal filtration is particularly efficient and rapid for effecting the desired solid / liquid separation.
- the centrifugal filtration device may in particular have a horizontal axis or a vertical axis.
- the centrifugal filtration is preferably carried out at an acceleration rate of 2 to 1500 g, more preferably 5 to 1000 g, and most preferably 10 to 800 g.
- Different values or ranges of accelerations can be used during successive phases of centrifugal filtration, such as a loading phase, a washing phase and / or a dehydration phase.
- a low acceleration can be applied first, followed by a higher acceleration.
- the pasty cake is made of wet solid material. It mainly comprises the precipitated products resulting from the concurrent reaction of formulas (IX-a) and / or (IX-b), or respectively of formula (Xa) and / or (Xb) and in a minority the desired product of the reaction of formula (I), or respectively of formula (II).
- the compound of formula (I), or respectively of formula (II) represents from 0.01 mol% to 10 mol% relative to the total number of moles of the compounds of formula (I), (IX-i) and (IX-ii), or respectively compounds of formula (II), (Xi) and (X-ii).
- the liquid mainly comprises the desired compound of formula (I) or (II) and in a minority the products resulting from the concurrent reaction of formulas (IX-a) and / or (IX-b), or respectively of formula (Xa) and / or (Xb).
- the liquid may optionally include unreacted compounds, and / or synthetic intermediates.
- the compound of formula (I), respectively of formula (II) represents from 90 mol% to 99.99 mol% relative to the total number of moles of the compounds of formula (I), (IX-i) and ( IX-ii), respectively compounds of formula (II), (Xi) and (X-ii).
- grafting of the chromophore to a biological molecule can be envisaged.
- a free radical generator can advantageously be used as a radical reaction initiator, such as polymerization or radical grafting reactions.
- the compound of formula (I), respectively the compound of formula (II) can be used as a photosensitive free radical generator. It can therefore be used as a photoinitiator, in particular UV photoinitiator, in a polymerization and / or crosslinking reaction. Applications in the field of resins, paints, inks or even adhesives can be envisaged.
- the compounds of formula (I) or of formula (II) according to the invention can advantageously replace more traditional photoinitiators, in particular photoinitiators of the aminoacetophenone family (example: IRGACURE 379 (2- (4-Methylbenzyl) - 2- (dimethylamino) -1- (4- morpholinophenyl) butan-1-one; CAS n ° 119344-86-4 or even SpeedCure BDMB 2-Benzyl-2-dimethylamino-4-morpholinobutyrophenone; CAS n ° 119313- 12- 1) which exhibit absorption maximums of the order of 320 nm, or the photoinitiators of the benzophenone family, such as for example SpeedCure MBS (CAS # 83846-85-9; Benzoylmethyldiphenylsulfide) which exhibits maximum double absorbance at 246 and 315 nm.
- photoinitiators of the aminoacetophenone family such as for example Speed
- the compound of formula (I), respectively the compound of formula (II) can be used as heat-sensitive free radical generator. It can therefore be used as a thermal initiator in a polymerization and / or crosslinking reaction.
- thermoplastics In particular, in the field of performance materials, one of the ways of widening the range of use of thermoplastics is to achieve partial crosslinking of the polymer during its implementation.
- aromatic and semi-aromatic thermoplastic matrices such as polyimides, polycarbonates, aromatic and semi-aromatic polyamides, aromatic polysulfones, polyaryletherketones (for example polyetherketoneketone) and / or their copolymers. They can therefore be easily added to such aromatic and semi-aromatic thermoplastic matrices so as to generate radicals during their implementation and thus allow partial crosslinking of the thermoplastic matrix to be ensured.
- thermoplastic matrix makes it possible, for example, among other things, to improve the resistance to high temperature of the thermoplastic matrix, possibly in the presence of other chemical compounds. These properties are, for example, highly sought after in the field of oil and gas operations (connectors, hoses, etc.).
- partial crosslinking makes it possible to limit, or even eliminate, the evolution of the crystallinity of semi-crystalline thermoplastic matrices, generally observed in aging tests or when high temperatures are reached.
- thermoplastic composite material generally combines a thermoplastic matrix with reinforcing fibers (continuous or discontinuous). Sizing the fibers is often necessary in order to facilitate handling, in particular to limit abrasion between fibers, and in order to ensure a good interface between the reinforcing fibers and the matrix.
- the application of the size can be carried out by several routes but generally the preferred one is by formation of an aqueous dispersion. Due to its aromatic nature, the compound according to the invention has good compatibility with carbon fibers for example and is also compatible with aromatic thermoplastic matrices: polyimide, polycarbonate, aromatic and semi-aromatic polyamide, aromatic polysulfones, polyetherarylketones, and theirs. copolymers therefore making it possible to have good wettability.
- thermoplastic matrix After depositing the aqueous dispersion and drying, when the fibers / matrix are brought into contact (by compounding, impregnation, coating, etc.), a radical grafting reaction of the compound according to the invention to the thermoplastic matrix can take place at the melting temperature of the thermoplastic matrix and thus ensure covalent bonds with the matrix.
- Example 2 The mixture obtained according to Example 1, essentially containing the compound of formula (V), was analyzed by high pressure liquid chromatography (HPLC) using a Phenomenex Kinetex 2.6pm C18 100A column coupled to mass spectrometry (MS-TOF). ) with an ionization mode type APCI (Atmospheric Pressure Chemical Ionization) in positive mode. A characteristic peak at 6.3 minutes was thus observed corresponding to the [M + H] + adduct of the compound of formula (V) (cf. FIG. 4).
- HPLC high pressure liquid chromatography
- MS-TOF mass spectrometry
- UV / IR The absorbance of the compounds of formula (V) and of formula (VI), resulting from the mixture obtained according to Example 1 and essentially containing the compound of formula (V), was measured on a UVA / isible Cary 300 spectrophotometer in mode transmittance in a quartz tank at a concentration of 1 g / L after dilution in 1, 2-dichlorobenzene.
- Figure 6 shows the absorbance band of the compound of formula (V), with a maximum absorbance at 293 nm.
- the E4 curve represents the absorbance of the stock solution at a pH lower than that of E3.
- Curve E5 represents the absorbance of the stock solution to which twenty drops of a strong acid have been added (pH ⁇ 2).
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Abstract
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Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2005059A FR3110572B1 (fr) | 2020-05-19 | 2020-05-19 | Dérivé de xanthène, mélanges le comprenant, procédé de fabrication et utilisations correspondants |
| PCT/FR2021/050841 WO2021234251A1 (fr) | 2020-05-19 | 2021-05-14 | Dérivés de xanthène, mélanges le comprenant, procédé de fabrication et utilisations correspondants |
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| Publication Number | Publication Date |
|---|---|
| EP4153579A1 true EP4153579A1 (fr) | 2023-03-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21732456.5A Pending EP4153579A1 (fr) | 2020-05-19 | 2021-05-14 | Dérivés de xanthène, mélanges le comprenant, procédé de fabrication et utilisations correspondants |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20230174498A1 (fr) |
| EP (1) | EP4153579A1 (fr) |
| KR (1) | KR20230012593A (fr) |
| CN (1) | CN115605465B (fr) |
| FR (1) | FR3110572B1 (fr) |
| WO (1) | WO2021234251A1 (fr) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3065205A (en) * | 1959-10-27 | 1962-11-20 | Du Pont | Aromatic polyketones and preparation thereof |
| US4329461A (en) * | 1980-01-11 | 1982-05-11 | Syva Company | Fluorescent thyroid hormone conjugates and their uses |
| US4496722A (en) * | 1981-05-01 | 1985-01-29 | The Children's Medical Center Corporation | Reporter compounds |
| US5049673A (en) * | 1987-10-30 | 1991-09-17 | The Regents Of The University Of California | Fluorescent indicator dyes for calcium working at long wavelengths |
| EP0515133A3 (en) * | 1991-05-20 | 1993-03-10 | Spectra Group Limited Inc | Fluorone and pyronin y derivatives |
| JP3582936B2 (ja) * | 1996-07-10 | 2004-10-27 | 株式会社ノエビア | 皮膚外用剤 |
| WO2009110487A1 (fr) * | 2008-03-04 | 2009-09-11 | 国立大学法人東京大学 | Sonde fluorescente spécifique du peroxyde d'hydrogène |
| ES2774725T3 (es) * | 2017-05-16 | 2020-07-22 | Arkema France | Método de fabricación de 1,4-bis(4-fenoxibenzoil)benceno en condiciones de sobresaturación |
| EP3404011B1 (fr) * | 2017-05-18 | 2020-08-26 | Arkema France | Dissociation d'un complexe benzène 1,4-bis(4-phénoxybenzoyle) - acide de lewis dans une solution aqueuse |
| EP3404010B1 (fr) * | 2017-05-16 | 2020-08-12 | Arkema France | Procédé de fabrication de 1,4-bis (4-phénoxybenzoyle) benzène au moyen de chlorure de téréphtaloyle sensiblement non hydrolysé |
| US10793500B2 (en) * | 2017-05-16 | 2020-10-06 | Arkema France | Dissociation of 1,4-bis (4-phenoxybenzoyl)benzene—Lewis acid complex in a protic solvent |
| EP3650434A1 (fr) * | 2018-11-09 | 2020-05-13 | Arkema France | Procédé de fabrication du 1,4-bis(4-phénoxybenzoylbenzène) utilisant du chlorure de téréphtaloyle essentiellement non-hydrolysé |
| CN110437427A (zh) * | 2019-08-05 | 2019-11-12 | 江西师范大学 | 一种叔丁基聚芳醚酮树脂及其制备方法 |
-
2020
- 2020-05-19 FR FR2005059A patent/FR3110572B1/fr active Active
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2021
- 2021-05-14 WO PCT/FR2021/050841 patent/WO2021234251A1/fr not_active Ceased
- 2021-05-14 KR KR1020227044353A patent/KR20230012593A/ko active Pending
- 2021-05-14 CN CN202180034672.2A patent/CN115605465B/zh active Active
- 2021-05-14 US US17/998,972 patent/US20230174498A1/en active Pending
- 2021-05-14 EP EP21732456.5A patent/EP4153579A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021234251A1 (fr) | 2021-11-25 |
| FR3110572B1 (fr) | 2022-10-07 |
| US20230174498A1 (en) | 2023-06-08 |
| CN115605465A (zh) | 2023-01-13 |
| CN115605465B (zh) | 2025-06-17 |
| FR3110572A1 (fr) | 2021-11-26 |
| KR20230012593A (ko) | 2023-01-26 |
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