EP3233815A2 - Dimères polyaromatiques, leur procédé de préparation et utilisation - Google Patents
Dimères polyaromatiques, leur procédé de préparation et utilisationInfo
- Publication number
- EP3233815A2 EP3233815A2 EP15823691.9A EP15823691A EP3233815A2 EP 3233815 A2 EP3233815 A2 EP 3233815A2 EP 15823691 A EP15823691 A EP 15823691A EP 3233815 A2 EP3233815 A2 EP 3233815A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- compound
- formula
- group
- ether
- groups
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/12—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms
- C07D303/18—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms by etherified hydroxyl radicals
- C07D303/20—Ethers with hydroxy compounds containing no oxirane rings
- C07D303/22—Ethers with hydroxy compounds containing no oxirane rings with monohydroxy compounds
- C07D303/23—Oxiranylmethyl ethers of compounds having one hydroxy group bound to a six-membered aromatic ring, the oxiranylmethyl radical not being further substituted, i.e.
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/49—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
- A61K8/4973—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with oxygen as the only hetero atom
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
- C07D303/12—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms
- C07D303/18—Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms by etherified hydroxyl radicals
- C07D303/28—Ethers with hydroxy compounds containing oxirane rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
- C08G59/04—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof
- C08G59/06—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols
- C08G59/063—Polycondensates containing more than one epoxy group per molecule of polyhydroxy compounds with epihalohydrins or precursors thereof of polyhydric phenols with epihalohydrins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/22—Di-epoxy compounds
- C08G59/24—Di-epoxy compounds carbocyclic
- C08G59/245—Di-epoxy compounds carbocyclic aromatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
- C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
- C08G59/32—Epoxy compounds containing three or more epoxy groups
- C08G59/3218—Carbocyclic compounds
Definitions
- the present invention relates to the field of polyaromatic ethers of glycidyl, as well as their applications in particular as precursors of polymers such as resins.
- the invention also relates to a process for the improved preparation of phenolic dimeric compounds from renewable resources and compositions containing such compounds.
- Bisphenol A is a chemical compound widely used for its thermal, optical or electrical properties, and in the synthesis of polymeric derivatives, such as epoxy resins or polycarbonates. It thus enters the composition of many consumer products.
- the invention relates to compounds of formula (A)
- Y represents a saturated or unsaturated carbon chain comprising from 1 to 30 carbon atoms
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, chosen independently of each other, may represent each
- R1, R2, R3, R4, R5, R6, R7, R8, R9, or R10 is O-methyl oxirane.
- n and m are integers ranging from 0 to 6, chosen independently of one another, - R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, chosen independently of each other, may each represent:
- R 1, R 2, R 3, R 4, R 5, R 6, R 7, R 8, R 9, or R 10 represents an O-methyl oxirane, with at least one of R 1 to R 5 being an O-methyl oxirane group and at least one of the groups R6 to R10 representing an O-methyloxirane radical.
- At least one of R2, R4, R7 and R9 is O-methyl.
- the invention also relates to a process for preparing compounds of formula (I) from molecules present in raw materials of plant origin.
- the method thus implements the one-step preparation of a glycidyl derivative which may, during a further step, be subjected to a metathesis reaction to give a dimer. homo and / or heterodimer - of formula (I).
- the invention also relates to compositions containing compounds of formula (I), optionally in polymerized form, and the applications of the compounds or compositions.
- the compounds of formula (I) according to the invention are dimers whose two aromatic units may be identical or different, and linked by an unsaturated or saturated hydrocarbon chain whose length may vary.
- n and m, identical or different may be 0, 1, 2, 3 or 4.
- at least n or m is 0.
- n and m identical or different are worth 0, 1 or 2, especially 0 or 1
- R1 to R10 may represent a hydrogen atom.
- R1 to R10 identical or different may also each denote a hydrocarbon chain, saturated or unsaturated, linear, branched or cyclic, optionally interrupted by a heteroatom such as O, Si or N and may have up to 6 atoms of O, Si or N, preferably 1 or 2 atoms of O or N.
- These chains generally comprise from 1 to 6 carbon atoms, in particular they are chains C1-C4, advantageously C1-C2.
- R1 to R10 may also represent sugars comprising one or more C5-C6 subunits, in particular monosaccharides or disaccharides.
- Such sugars are in particular sugars resulting from the metabolism of carbohydrates, such as for example glucose, fructose, xylose or arabinose.
- R1 to R10 may also represent various protective groups such as esters comprising a linear, branched or cyclic C1-C6 carbon chain, optionally interrupted by a heteroatom, in particular O, Si or N, which may comprise up to 6 carbon atoms. O, Si or N, preferably 1 or 2 O or N.
- R1 to R10 may also represent various protective groups, such as ether-oxides, comprising a linear, branched or cyclic C1-C12 carbon chain, optionally interrupted by a heteroatom, in particular O, Si or N, and may contain up to 6 O, Si or N atoms, preferably 1 or 2 atoms of O or N.
- ether-oxides comprising a linear, branched or cyclic C1-C12 carbon chain, optionally interrupted by a heteroatom, in particular O, Si or N, and may contain up to 6 O, Si or N atoms, preferably 1 or 2 atoms of O or N.
- -OSiR ' with R' in C1-C6, it is then a silyl ether.
- Mention may in particular be made of trimethylsilyl, triethylsilyl, tributylsilyl or dimethylterbutyl silyl ethers.
- the compounds of formula (I) can also comprise several -OH groups, among the groups R1 to R10 or as a substitute for hydrocarbon chains as defined above.
- the compounds of formula (I) comprise a single free -OH group per aromatic ring, or no free -OH group.
- the compounds of interest of formula (I) can comprise at least one O-methyl oxirane group among R1, R2, R3, R4, R5, R6, R7, R8, R9, R10; advantageously, the compounds comprise at least one O-methyl oxirane group on each aromatic ring, preferably in the meta or para position with respect to the intercycle chain.
- R3 and R8 each represent an O-methyloxirane radical.
- the compound of formula (I) has only two O-methyl oxirane radicals, in particular in the para position.
- Compounds of formula (I) particularly meeting the objectives of the invention have at least one O-methyl group in the meta or para position on each aromatic ring.
- Such compounds preferably have at least one of R2, R4, R7 and R9 representing O-methyl.
- R 1, R 5, R 6 and R 10 denote in particular methyl, methoxy groups or a hydrogen atom, preferably a methyl or a hydrogen atom.
- R 1, R 5, R 6 and R 10 each represent a hydrogen atom and at least one of the radicals R 2, R 4, R 7 and R 9 represents an O-methyl.
- Compounds have in particular at least one of the radicals R1 or R2 which represents an O-methyl, and at least one of the radicals R7 or R9 which represents an O-methyl.
- Compounds of interest according to the invention thus have 2, 3 or 4 O-methyl groups.
- the compound of formula (I) does not correspond to a resveratrol molecule comprising -OH groups in R2, R4 and R8 or R3, R7 and R9 and with n and m each being 0.
- the compounds of formula (I) according to the invention may have an unsaturated carbon chain connecting two aromatic rings, having an unsaturation in a cis or trans configuration. It is possible to obtain via the same process molecules having a Trans configuration, Cis or a mixture of molecules in Trans and Cis configuration, in variable proportions.
- Each of these compounds can be obtained in a cis or trans configuration, or in the form of a mixture of cis and trans configuration.
- the compounds of formula (I) according to the invention are particularly those obtained by functionalization of natural phenolic compounds, obtained from plant extracts, in particular from eugenol, canolol (4-vinyl syringol) and from -vinyl guaiacol; these molecules can be obtained respectively from clove, rapeseed and agricultural co-products such as wheat straw.
- the invention also relates to precursor compounds in the preparation of compounds of formula (I). These precursor compounds have in particular the following formula (VIII):
- the precursors may have the following formula (IX)
- R3 represents a C2-C6 alkenyl radical and R1 represents a hydrogen atom or an O-methyl radical.
- R3 represents a hydrocarbon chain having at least one unsaturated, linear or branched, C2-C4.
- the unsaturation is between the last and the penultimate free carbon.
- the compounds of formula (I) are particularly interesting because it has been found in the context of the present invention that it is possible to prepare them from biosourced compounds, by simple reactions to be carried out. work and showing a good performance. They are generally easily biodegradable, thus meeting the standards of sustainable development.
- the invention therefore also relates to a method for preparing a compound of formula (I) below:
- n and m are integers ranging from 0 to 6, chosen independently of one another,
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 chosen independently of each other, each represent a hydrogen atom, a group -OH, a group selected from C1 alkyl radicals; -C6, linear, branched or cyclic, linear, branched or cyclic C 2 -C 6 alkenyl radicals, optionally interrupted by one or more heteroatoms such as O or N and / or substituted by one or more -OH groups, and ether radicals; an oxide having 1 to 6 carbon atoms, saturated or unsaturated, linear, branched or cyclic, optionally interrupted by one or more heteroatoms such as O, Si or N and / or substituted with one or more -OH groups, and
- R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 represents an ether ether, a silyl ether or an ester
- R ' represents H or a radical - [CH2] m -CH3 n and m, are integers ranging from 0 to 6, chosen independently of one another
- n and m are integers ranging from 0 to 6, chosen independently of one another,
- R1, R2, R3, R4, and R5 chosen independently of each other, each represent a hydrogen atom, a group -OH, a group selected from linear, branched or cyclic C 1 -C 6 alkyl radicals, linear, branched or cyclic C2-C6 alkenyl radicals, optionally interrupted by one or more heteroatoms such as O or N and / or substituted with one or more -OH groups, and ether ether radicals having from 1 to 6 carbon atoms, saturated or unsaturated, linear, branched or cyclic, optionally interrupted by one or more heteroatoms such as O, Si or N and / or substituted with one or more -OH groups, and
- At least one of the groups R1 to R5 represents an ether ether oxide, silyl ether or ester radical; and b) a metathesis reaction of at least two compounds of formula (X), which are identical or different, in the presence of a catalyst to obtain at least one compound of formula (I).
- the compound of formula (X) may in particular correspond to the following formula
- the process makes it possible to prepare the compounds of formula I as defined in all of the above, in all their variants.
- the compounds are obtained with a yield greater than 50%, especially greater than 90%.
- the implementation of the process leads to compounds of formula I, single or in mixture, in particular to mixtures of homo or hetero dimers, without significant presence of compounds not corresponding to formula I, or without any presence of compound not corresponding to formula I among the reaction products.
- esterification reaction is an acetylation reaction in which the phenolic compound reacts with excess acetic anhydride in the presence of pyridine at room temperature.
- the at least partial protection of the free -OH groups of the phenolic compound by protective groups such as ether-oxide, silyl ether or ester radicals makes it possible to inactivate the free -OH groups and thus to improve the reactivity of the reaction of metathesis taking place in step b).
- step a) the phenolic compound is reacted with epichlorohydrin in order to obtain a compound of formula (X) in which at least one of the groups R 1 to R 5 represents an O-methyl oxirane radical.
- This O-glycidylation reaction of the starting phenolic compounds makes it possible to obtain compounds (X) with improved reactivity.
- this makes it possible to avoid carrying out two additional protection steps before the implementation of step b) and then deprotection after step b).
- step a) makes it possible both to introduce the methyloxirane group and to inactivate the phenolic hydroxyl responsible for the deactivation of the catalyst during the metathesis step.
- the phenolic compound has the following formula ( ⁇ '):
- R ' represents H or a radical - [CH2] m -CH3,
- n and m are integers ranging from 0 to 6, chosen independently of one another,
- the phenolic compound is eugenol, 4-vinyl guaiacol or canolol.
- step a) is carried out by the action of a phase transfer catalyst in an alkaline medium.
- radicals R 1 to R 10 may be as defined in all of the above.
- the compound of formula (X) obtained at the end of step a) may be a glycidyl derivative of eugenol, 4-vinyl guaiacol or canolol.
- the catalyst used in step b) is a Grubbs catalyst.
- Grubbs catalyst complex transition metal-carbene, in particular ruthenium complex; it can be Grubbs catalyst of first or second generation, in particular of second generation.
- benzylidene [1,3-bis (2,4,6-trimethylphenyl) -2-imidazolidinylidene] dichloro (tricyclohexylphosphine) ruthenium is used.
- This a) etherification, silylation or esterification step, preferably glycidylation, of the phenolic compound may be partial, in which case all the -OH groups of the phenolic compound will not react during this reaction, or on the contrary total, in which case all the -OH groups of the phenolic compound will react during this reaction.
- the -OH groups of the phenolic compound will be found either partially substituted with an ether ether, silyl ether or ester radical, preferably with an O-methyl oxirane group, or totally substituted by an ether ether, silyl ether or ester radical. preferably by an O-methyl oxirane group.
- the free hydroxyl compounds of formula (I) among R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 may result from a partial reaction of etherification, silylation or esterification, preferably glycidylation, in which all the free - OH groups of the phenolic compound do not react in step a) of the process. They can also be regenerated by a subsequent deprotection step of at least one ether ether oxide, silyl ether or ester, preferably an O-methyl oxirane group of the compound of formula (I). Such a deprotection of at least one O-methyl oxirane group of the compound of formula (I) may for example be carried out by hydrogenation in the presence of palladium on carbon (Pd / C).
- step b) the dimerization reaction can be carried out in the presence of several types of compounds of formula (X), in which the radicals R1 to R5 have different meanings.
- a compound of formula (I) or a mixture of compounds of formula (I) will be obtained, in variable proportions, by varying the reaction conditions.
- a mixture of 2, 3 or 4 compounds of formula (I) will be obtained. It will generally be a mixture of homodimers and heterodimers.
- step b) of the process will be followed by a step of hydrogenation of the double bond of the compound of formula (I) in order to obtain a compound of formula (A) wherein Y represents a saturated carbon chain comprising from 1 to 30 carbon atoms.
- the compounds of formula (I) and (A) according to the invention may be useful for example as anti-oxidants, or as precursors of substitute polymers of bisphenol A and its derivatives.
- the invention therefore also relates to a composition for cosmetic, pharmaceutical use, comprising at least one compound of general formula (I) and a physiologically acceptable excipient.
- thermosetting or thermoplastic polymer which comprises subunits of formula (I) or (A) as defined above or derived from such subunits, and a process for preparing a polymer from said compounds of formula (I) to (VII ).
- the polymers are capable of being obtained by polymerization of compounds corresponding to formula I according to one of the preceding definitions. It can be homopolymer prepared from a single type of compound of formula I, or heteropolymers or copolymers prepared from a mixture of at least two types of compounds of formula I for which at least one of the substituents has a different meaning.
- the copolymer can be obtained solely by polymerization of compounds corresponding to formula I as defined above. It may also be a copolymer obtained by polymerizing at least one compound of formula I with one or more compounds not corresponding to formula I.
- the compounds of formula I according to the invention or the polymers obtained from subunits of formula I are particularly interesting because it has been found that the compounds of formula (I) do not exhibit endocrine receptor agonist activity as the alpha receptor for human estrogen.
- the O-glycidylation reaction of compounds 1, 2 and 3 is conducted in the presence of epichlorohydrin in an alkaline medium.
- the epichlorohydrin used is marketed by Sigma-Aldrich (product reference: 45340-1 L). It is a racemic mixture of the two enantiomeric forms.
- phase transfer catalyst (BnEt 3 NCI).
- the crude product is purified by silica gel chromatography using a mixture of petroleum ether / ethyl acetate (70:30, v / v) to obtain products 7, 8 and 9.
- the epichlorohydrin is therefore placed in an alkaline excess in the presence of a catalytic amount of BnEt 3 NCI in order to react with the compounds 1, 2 and 3 to give the glycidyl compounds 7, 8 and 9, respectively, according to scheme 1 above.
- the proton of the hydroxy phenol is substituted by the methyl oxirane group.
- the proton and carbon NMR spectra below of the glycidyl compounds 7, 8 and 9 make it possible to demonstrate this substitution.
- the dimerization of two glycidyl compounds makes it possible to obtain a mixture of homodimer and heterodimer, as well as other dimeric compounds and / or monomeric.
- the catalyst used in the examples is of the following chemical formula:
- Example 3 Preparation of an Epoxy Resin from a Compound of Formula (I) According to the Invention
- 1 mmol of compound of formula (V) is mechanically mixed at room temperature with 1 mmol of isophorone diamine (IPD).
- the mixture is then placed in a silicone mold and cross-linked at 100 ° C. for 12 hours, followed by 2 hours at 250 ° C.
- the ligand structure has been converted to 3D with Marvin Sketch software 15.4.6.0 [ChemAxon (2015).
- the agonist activity of the compounds was estimated from the affinity constants, expressed in ⁇ , calculated by docking.
- the affinity constant expresses the concentration at which the ligand occupies 50% of the active site of the receptor.
- the affinities of structures hydrolysed with the alpha receptor have also been estimated. These structures are likely to be generated by metabolizing the compounds in the body, which will cause the epoxy rings to break down.
- the glycidyl dimers according to the invention and their hydrolysed derivatives have, for the most part, no agonist activity. Only the compound II (EG-EG II) has a slight activity, which remains negligible compared to that of the reference compound, BPA.
- This compound II loses its initial agonist activity after hydrolysis.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Birds (AREA)
- Dermatology (AREA)
- Epoxy Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1462800A FR3030514A1 (fr) | 2014-12-18 | 2014-12-18 | Dimeres polyaromatiques |
PCT/FR2015/053655 WO2016097657A2 (fr) | 2014-12-18 | 2015-12-18 | Dimères polyaromatiques, leur procédé de préparation et utilisation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3233815A2 true EP3233815A2 (fr) | 2017-10-25 |
Family
ID=52807916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15823691.9A Withdrawn EP3233815A2 (fr) | 2014-12-18 | 2015-12-18 | Dimères polyaromatiques, leur procédé de préparation et utilisation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3233815A2 (fr) |
FR (1) | FR3030514A1 (fr) |
WO (1) | WO2016097657A2 (fr) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018098831A1 (fr) * | 2016-12-03 | 2018-06-07 | 苏州大学张家港工业技术研究院 | Résine époxy à base de biomasse et son procédé de préparation |
FR3071836B1 (fr) | 2017-09-29 | 2020-07-17 | Institut National De La Recherche Agronomique (Inra) | Procede de preparation de dimeres aromatiques |
CN110615731B (zh) * | 2019-09-16 | 2022-10-14 | 中国农业科学院油料作物研究所 | 一种制备2,6-二甲氧基-4-乙烯基苯酚的方法 |
CN117551258B (zh) * | 2024-01-10 | 2024-03-15 | 西南石油大学 | 一种生物来源光响应环氧树脂及其制备方法 |
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US20140248263A1 (en) * | 2011-04-08 | 2014-09-04 | The University Of British Columbia | Bisphenol compounds and methods for their use |
JP2013119608A (ja) * | 2011-12-08 | 2013-06-17 | Nippon Steel & Sumikin Chemical Co Ltd | エポキシ樹脂、エポキシ樹脂組成物及びその硬化物 |
GB201203341D0 (en) * | 2012-02-27 | 2012-04-11 | Cytec Technology Group | Curable resin composition and short-cure method |
EP2759295A1 (fr) * | 2013-01-29 | 2014-07-30 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. | Cellule de mousse spécifique de l'agoniste alpha du récepteur des oxystérols (LXR), inhibiteurs de SIRT1 ainsi qu'inhibiteurs de protéines p300 comme agents pharmaceutiquement actifs |
BR112015023283A2 (pt) * | 2013-03-14 | 2018-07-10 | Univ Case Western Reserve | composto precursor de polímero de acordo com fórmula i, ii, iii ou iv, resina epóxi preparada a partir de um composto de acordo com fórmula i, ii, iii ou iv, resina epóxi curada, método de fazer uma resina epóxi e composição de revestimento compreendendo uma resina epóxi. |
-
2014
- 2014-12-18 FR FR1462800A patent/FR3030514A1/fr not_active Withdrawn
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2015
- 2015-12-18 WO PCT/FR2015/053655 patent/WO2016097657A2/fr active Application Filing
- 2015-12-18 EP EP15823691.9A patent/EP3233815A2/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2016097657A3 (fr) | 2016-09-01 |
FR3030514A1 (fr) | 2016-06-24 |
WO2016097657A2 (fr) | 2016-06-23 |
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