EP3891118A1 - Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators - Google Patents
Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysatorsInfo
- Publication number
- EP3891118A1 EP3891118A1 EP19809496.3A EP19809496A EP3891118A1 EP 3891118 A1 EP3891118 A1 EP 3891118A1 EP 19809496 A EP19809496 A EP 19809496A EP 3891118 A1 EP3891118 A1 EP 3891118A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- formula
- carboxylic acid
- hydroxy compound
- compound
- decarboxylation
- 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- Withdrawn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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/20—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
- C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
- C07C39/04—Phenol
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
- C07C39/12—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings
- C07C39/15—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic with no unsaturation outside the aromatic rings with all hydroxy groups on non-condensed rings, e.g. phenylphenol
- C07C39/16—Bis-(hydroxyphenyl) alkanes; Tris-(hydroxyphenyl)alkanes
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C65/00—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
- C07C65/01—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups
- C07C65/03—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring
- C07C65/05—Compounds having carboxyl groups bound to carbon atoms of six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups containing hydroxy or O-metal groups monocyclic and having all hydroxy or O-metal groups bound to the ring o-Hydroxy carboxylic acids
- C07C65/10—Salicylic acid
-
- 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
- C08G64/00—Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
- C08G64/04—Aromatic polycarbonates
- C08G64/06—Aromatic polycarbonates not containing aliphatic unsaturation
Definitions
- the present invention relates to a method for producing a special Hy droxy compound by decarboxylation of a special carboxylic acid compound or
- Phenols with different substitution patterns on aromatics are the starting compounds for different monomers and thus also for the resulting polymers.
- the production of such phenols from renewable raw materials is a great challenge.
- One possibility for the production of bio-based phenols is the direct fermentation of sugars, such as described in WO 2014/076113 A1.
- phenol is toxic to the microorganism described there and also the removal from the aqueous fermentation broth is expensive.
- Hydroxybenzoic acids such as 4-hydroxybenzoic acid, 2-hydroxybenzoic acid and 3-hydroxybenzoic acid can also be produced fermentatively from sugars. Since they are generally less toxic to the microorganisms used, higher yields can normally be achieved compared to phenol.
- Hydroxybenzoic acids can be crystallized and separated from the fermentation broth. A subsequent decarboxylation of 4-hydroxybenzoic acid to phenol has also already been described.
- JP 2016-23136 A describes the reaction using a heterogeneous catalyst in water as a solvent.
- A.S. Eisitsyn / Applied Catalysis A: General 332; 2007 (166-170) describes decarboxylation in diphenyl ether using a copper catalyst.
- L.J. Goossen et al. describe in ChemCatChem 2010, 2, 430-442 the decarboxylation using a silver or copper catalyst in NMP as a solvent. Also in Dalton Transactions (24), 4683-4688; In 2009, decarboxylation in toluene by electron-rich palladium complexes is described.
- the present invention was therefore based on the object of providing a process for the preparation of special hydroxy compounds of the formula (I) by decarboxylation of a carboxylic acid compound of the formula (II) or a corresponding salt of this carboxylic acid compound of the formula (II), which has at least one disadvantage of the state of the art Technology improved.
- the present invention was based on the object of providing a process which provides the hydroxy compound of the formula (I) with high economy.
- the method should in particular avoid the step of separating the catalyst, since such an additional step is often undesirable.
- Carboxylic acid compound of formula (II) also takes place without the use of a catalyst. In particular, this reaction also takes place in economically worthwhile orders of magnitude.
- the reaction of the decarboxylation without the use of a catalyst enables this reaction to be carried out at previously unused locations in existing processes.
- the process according to the invention enables the decarboxylation to be carried out in already existing distillation columns which are used for working up hydroxy compounds of the formula (I) by means of distillation.
- Carboxylic acid compound of formula (II) to the bottom of these distillation columns can be removed from the hydroxy compound of formula (I) as a distillate essentially without further energy expenditure and also without additional equipment.
- this distillate contains the hydroxy compound of formula (I), which was originally supposed to be worked up.
- it also contains hydroxy compounds of the formula (I) which have newly formed in the column by decarboxylation. This results in a significantly increased amount of purified distillate compared to the previous use of the distillation column, which can be used further.
- R represents a linear or branched alkyl group having 1 to 6 carbon atoms, n is 1 or 2 and m is 0, 1, 2 or 3, by decarboxylation of a carboxylic acid compound of the formula (II) or a corresponding salt of this carboxylic acid compound of the formula (II)
- R, n and m have the meanings given above, characterized in that the decarboxylation is carried out in the absence of a catalyst.
- the decarboxylation reaction is carried out without a catalyst.
- a catalyst is known to the person skilled in the art. In particular, he understands by a catalyst a substance that lowers the activation energy of a reaction and thus increases the reaction rate without being consumed in the reaction itself. According to the invention, the presence of such a catalyst, which catalyzes the reaction of the decarboxylation, is excluded.
- catalyst according to the invention preferably comprises both homogeneous catalysts and heterogeneous catalysts.
- the method according to the invention particularly preferably also does not comprise any step of actively adding a catalyst.
- a catalyst is present during the decarboxylation reaction, which is selected from the group consisting of AI2O3, H3PO4 supported on AI2O3, RC1 X supported on AI2O3, Cu / Al / Ga-MOFs, R-Al-MOFs, palladium supported on activated carbon, platinum supported on activated carbon, zeolites, such as ZSM-5, HZSM-5, I 'e;(>, supported on MCM-41 (Mobil Composition of Matter No.
- the process according to the invention is preferably characterized in that the decarboxylation is carried out in the presence of at least one solvent.
- solvent is known to the person skilled in the art.
- a solvent causes the starting materials and products of the decarboxylation reaction to be present in dissolved form under the reaction conditions.
- Preferred means “dissolve” and “in solution” if, when filtering a liquid in which a substance is dissolved, no solid can be separated using common filter methods. It is particularly preferred that the decarboxylation reaction takes place in the liquid phase.
- the method according to the invention preferably comprises a step of actively adding at least one solvent before the start of the decarboxylation reaction. In this case, the at least one solvent can be added to the starting materials or the starting materials can be added to the at least one solvent.
- the solvent is preferably an organic solvent with a boiling point which is higher than the boiling point of the hydroxy compound of the formula (I).
- organic solvent with a boiling point which is higher than the boiling point of the hydroxy compound of the formula (I).
- bisphenol A or alkylphenols are suitable here.
- the at least one solvent is very particularly preferably selected from a hydroxy compound of the formula (I). This solvent further preferably corresponds to the compound of formula (I) prepared.
- the invention is characterized in that at least one hydroxy compound of the formula (I) is present in a stoichiometric excess to the carboxylic acid compound of the formula (II) during the entire reaction of the decarboxylation, the decarboxylation being carried out at a temperature which is above the Melting temperature of both the hydroxy compound of formula (I) formed and the at least one hydroxy compound of formula (I) used in a stoichiometric excess.
- the carboxylic acid compound of the formula (II) or the salt of the carboxylic acid compound of the formula (II) is present in addition to at least one hydroxy compound Formula (I). This also applies before the decarboxylation reaction begins.
- the at least one hydroxy compound of formula (I) is in a stoichiometric excess. This means that the carboxylic acid compound of the formula (II) or the salt of the carboxylic acid compound of the formula (II) is in a molar deficit to the at least one hydroxy compound of the formula (I).
- the hydroxy compound of the formula (I) is then additionally formed as the target product.
- the case is preferably excluded in which the hydroxy compound of the formula (I) forms as the target product in situ and then at some point a molar deficit of the carboxylic acid compound of the formula (II) or the salt of the carboxylic acid compound of the formula (II) is formed, since at least one hydroxy compound of the formula (I) must additionally be present from the start of the decarboxylation.
- the carboxylic acid compound of the formula (II) or the salt of the carboxylic acid compound of the formula (II) is thus preferably soluble in the at least one hydroxy compound of the formula (I) which is present in the stoichiometric excess of the carboxylic acid compound of the formula (II) in the entire reaction of the decarboxylation is.
- the process according to the invention in this embodiment is preferably carried out at a temperature which is above the melting temperature of both the hydroxy compound of the formula (I) formed and the at least one hydroxy compound of the formula (I) used in a stoichiometric excess.
- the method according to the invention is therefore preferably carried out in solution.
- the at least one hydroxy compound of the formula (I), which is present in the stoichiometric excess of the carboxylic acid compound of the formula (II) in the entire decarboxylation reaction, serves as the solvent.
- the process according to the invention can be a batch, semi-batch or continuous process.
- the process according to the invention is preferably used to prepare a hydroxy compound of the formula (I) shown above, in which R represents a tert-butyl, propyl or methyl group, n is 1 or 2, preferably 1 and m is 0, 1, 2 or 3 is.
- the process according to the invention is particularly preferably used to prepare 4-propylphenol, ortho-, para- or metha-methylphenol (cresols), 2,4-dimethylphenol, 2,5-dimethylphenol, 4-tert-butylphenol or phenol.
- the process according to the invention is very particularly preferably characterized in that the hydroxy compound of the formula (I) is phenol.
- the at least one hydroxy compound of the formula (I), which is present in a stoichiometric excess to the carboxylic acid compound of the formula (II) in the entire decarboxylation reaction, if present, is a hydroxy compound of the formula (I ) in which R represents a tert-butyl, propyl or methyl group, n is 1 or 2, preferably 1 and m is 0, 1, 2 or 3.
- This at least one hydroxy compound of the formula (I) which is present in a stoichiometric excess to the carboxylic acid compound of the formula (II) in the entire reaction of the decarboxylation, 4-propylphenol, ortho-, para- or metha-methylphenol (cresols), 2 is particularly preferred , 4-dimethylphenol, 2,5-dimethylphenol, 4-tert-butylphenol or phenol. It is very particularly preferably phenol.
- the hydroxy compound of the formula (I) prepared by the process according to the invention corresponds to the hydroxy compound of the formula (I) which is present in the stoichiometric excess of the carboxylic acid compound of the formula (II) in the entire reaction of the decarboxylation.
- the carboxylic acid compound of the formula (II) or the salt of the carboxylic acid compound of the formula (II) are sometimes also summarized as a carboxylic acid compound of the formula (II).
- the free acid and / or the salt are always meant, unless stated otherwise.
- mixtures of different carboxylic acid compounds of the formula (II) or different salts of the carboxylic acid compounds of the formula (II) or also mixtures of at least one carboxylic acid compound of the formula (II) with at least one salt of the carboxylic acid compound of the formula (II) can be used.
- the cation of the salt of the carboxylic acid compound of the formula (II) is selected from the group consisting of alkali metal cations, alkaline earth metal cations, ammonium, phosphonium, cations of manganese, iron, cobalt, nickel, copper, zinc, molybdenum, Cadmium and any mixtures thereof.
- the cation of the salt of the carboxylic acid compound of the formula (II) is particularly preferably selected from the group consisting of alkali metal cations, alkaline earth metal cations and mixtures thereof.
- the carboxylic acid compound of the formula (II) or the corresponding salt of the carboxylic acid compound of the formula (II) is selected from the group consisting of 2-hydroxybenzoic acid, 4-hydroxybenzoic acid and the corresponding salts. It is very particularly preferably 4-hydroxybenzoic acid or the corresponding salt.
- the carboxylic acid compound of the formula (II) or the corresponding salt of the carboxylic acid compound of the formula (II) has been obtained by fermentation or from sugars, lignocellulose, lignocellulose-containing materials, furans and / or lignin .
- the carboxylic acid compound of the formula (II) or the corresponding salt of the carboxylic acid compound of the formula (II) is thus preferably bio-based.
- bio-based means that the chemical compound in question is accessible, obtainable and / or preferably such a renewable and / or renewable raw material at the time of registration by a renewable and / or renewable raw material.
- a renewable and / or renewable raw material is preferably a raw material that is regenerated by natural processes at a rate that is comparable to its rate of degradation (see CEN / TS 16295: 2012).
- the expression serves in particular to differentiate it from raw materials from fossil raw materials, also referred to according to the invention as petrobased. Whether a raw material is bio-based or petro-based can be determined by measuring carbon isotopes in the raw material, since the relative amounts of the carbon isotope C14 are lower in fossil raw materials. This can be done, for example, in accordance with ASTM D6866-18 (2016) or ISO16620-1 to -5 (2015) or DIN SPEC 91236 2011-07.
- the term “petro-based” is preferably used for those compounds which have a C14 isotope content of less than 0.3 ⁇ 10 12 , particularly preferably 0.2 ⁇ 10 12 and very particularly preferably 0.1 ⁇ 10 12 .
- a bio-based hydroxy compound of the formula (I) is obtained by using a bio-based carboxylic acid compound of the formula (II) or a corresponding salt of the carboxylic acid compound of the formula (II).
- This in turn can be used for the production of further bio-based compounds, for example diaryl carbonates, bisphenols or polycarbonates, as a result of which bio-based polymers are ultimately accessible and are produced in an efficient and cost-effective way.
- the process according to the invention is preferably carried out at a pressure between 1 mbar and 1000 mbar, preferably between 5 mbar and 600 mbar, particularly preferably between 10 mbar and 200 mbar. It is also preferred that the process according to the invention is carried out at a temperature between 180 ° C. and 400 ° C., preferably between 180 ° C. and 270 ° C. and particularly preferably between 185 ° C. and 250 ° C.
- the reaction of decarboxylation at a reaction temperature of 180 ° C. and 400 ° C., preferably between 180 ° C. and 270 ° C. and particularly preferably between 185 ° C. and 250 ° C. and a pressure of 1 mbar and 1000 mbar is particularly preferred between 5 mbar and 600 mbar, particularly preferably between 10 mbar and 200 mbar.
- the process according to the invention is characterized in that it is carried out in a distillation column.
- This offers the advantage that the hydroxy compound of the formula (I) can preferably be removed as a distillate.
- the bottom of the distillation column according to the embodiment described above can additionally contain a hydroxy compound of the formula (I) which is present in a stoichiometric excess to the carboxylic acid compound of the formula (II) in the entire reaction of the decarboxylation.
- a carboxylic acid compound of the formula (II) or the corresponding salt of the carboxylic acid compound of the formula (II) is then added to the bottom of the distillation column.
- this compound can be added to the bottom of the distillation column by means of feed.
- the decarboxylation reaction is now started during the distillation. It has been found according to the invention that the conditions which are present in such a distillation column (temperature and pressure) are sufficient to initiate a decarboxylation reaction. The presence of a catalyst is not necessary for this.
- the inventive method is preferably further characterized in that the already formed hydroxy compound of the formula (I) is additionally supplied in contaminated form to the distillation column and is separated from the impurity in all configurations and preferences in addition to carrying out the method according to the invention in the distillation column.
- a hydroxy compound of the formula (I) in the sump which is present in a stoichiometric excess to the carboxylic acid compound of the formula (II) in the entire decarboxylation reaction.
- This hydroxy compound of formula (I) which functions as a solvent, may contain impurities. These are preferably impurities which arise in the synthesis of bisphenols and / or the polymerization of polycarbonates by means of phase interface processes and / or melting processes.
- the observation that the decarboxylation reaction can also be carried out without a catalyst enables adaptation of already existing plants, such as distillation columns.
- a carboxylic acid compound of formula (II) or the corresponding salt of the carboxylic acid compound of formula (II) can simply be added to this.
- This integration is possible in existing systems without much effort.
- the energy required for the distillation can also be used to initiate the decarboxylation reaction.
- the method according to the invention thus enables particularly economical and environmentally friendly process control.
- the distillate be fed to a process for producing a bisphenol, a diaryl carbonate or a polycarbonate.
- Processes for the preparation of diaryl carbonates or bisphenols are known to the person skilled in the art.
- Diaryl carbonates can be prepared, for example, by the reaction of the hydroxy compound of the formula (I) with phosgene in a known manner.
- Bisphenols can be obtained by reacting the hydroxy compound of formula (I) with a ketone in a known manner.
- Methods for the production of polycarbonates using the hydroxy compound of the formula (I) are also known to the person skilled in the art.
- the hydroxy compound of formula (I) can be used as a chain terminator in a phase interface process for the production of polycarbonate in a known manner.
- the other reaction partners such as the ketones
- the other reaction partners can also be bio-based or petro-based, preferably bio-based. This allows products with different proportions of bio-based carbon to be obtained in a targeted manner.
- bio-based there are currently different labels for when a product can be described as “bio-based” (see, among other things, the certification program “bio-based products according to ASTM D6866-18 (2016) or ISO16620-1 to -5 (2015) or DIN SPEC 91236 2011 - 07 from TÜVRhe offshore®). These different labels require a certain percentage of bio-based carbon in the product. The method according to the invention makes it possible to simply adjust the proportion of bio-based carbon.
- a method for producing a bisphenol comprising the steps: (i) reaction of at least one hydroxy compound of the formula (I) with at least one ketone to give a mixture comprising at least one bisphenol and at least one unreacted hydroxy compound of the formula (I),
- Preferred bisphenols which can be prepared by the process according to the invention are those of the formula (2a)
- HO-Z-OH (2a) in which Z is an aromatic radical having 6 to 30 C atoms, which can contain one or more aromatic nuclei, can be substituted and contain aliphatic or cyclo aliphatic radicals or alkylaryls or heteroatoms as bridge members can.
- Z in formula (2a) preferably represents a radical of formula (3)
- Ci to Cis alkyl in the R 6 and R 7 independently of one another for H, Ci to Cis alkyl, Ci to Cis alkoxy, halogen such as CI or Br or for each optionally substituted aryl or aralkyl, preferably for H or Ci to Ci2 alkyl , particularly preferably H or Ci- bis (V alkyl and very particularly preferably H or methyl, and X represents a single bond, -SO2-, -CO-, -O-, -S-, Ci- to Ce-alkylene, C2- to Cs-alkylidene or C 5 - to C ö -cycloalkylidene, which can be substituted by Ci- to (VAlkyl, preferably methyl or ethyl, furthermore for C ⁇ - to Ci2-arylene, which optionally contain further hetero atoms aromatic rings may be condensed.
- X is preferably a single bond, Ci to (V alkylene, C 2 to Cs alkylidene, Cs to (V cycloalkylidene, -O-, -SO-, -CO-, -S-, -SO 2 - or a radical of the formula (3a)
- bisphenols examples include dihydroxybenzenes, dihydroxydiphenyls, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) cycloalkanes, bis (hydroxyphenyl) aryls, bis (hydroxyphenyl) ethers, bis (hydroxyphenyl) ketones, bis - (hydroxyphenyl) sulfide, bis (hydroxyphenyl) sulfone, bis
- Preferred bisphenols are 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) -l-phenylpropane,
- 1,1-bis (4-hydroxyphenyl) phenylethane 2,2-bis (4-hydroxyphenyl) propane, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, 1,3-bis- [ 2- (4-hydroxyphenyl) -2-propyl] benzene (bisphenol M), 2,2-bis (3-methyl-4-hydroxyphenyl) propane, bis (3,5-dimethyl-4-hydroxyphenyl) - methane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane, bis (3,5-dimethyl-4-hydroxyphenyl) sulfone, 2,4-bis (3,5-dimethyl) -4-hydroxyphenyl) -2-methylbutane, 1,3-bis- [2- (3,5-dimethyl-4-hydroxyphenyl) -2-propyl] benzene and 1,1-bis- (4-hydroxyphenyl) - 3,3,5-trimethylcyclohexane (bisphenol TMC).
- Particularly preferred bisphenols are 4,4'-dihydroxydiphenyl, l, l-bis (4-hydroxyphenyl) phenylethane, 2,2-bis (4-hydroxyphenyl) propane, 2,2-bis (3.5 -dimethyl-4-hydroxyphenyl) propane,
- the samples were dissolved in acetonitrile and analyzed by HPLC (phenol and 4-hydroxybenzoic acid were determined using a mixture of 85% by volume H2O + 200m1 H3PO4 and 15% by volume acetonitrile as the mobile phase at a flow of 1 ml / min a ZORBAX SB-C18 column (with a SpectraSYSTEM pump and a UV detector 210 nm UV 6000 LP) measured using HPLC).
- HPLC phenol and 4-hydroxybenzoic acid were determined using a mixture of 85% by volume H2O + 200m1 H3PO4 and 15% by volume acetonitrile as the mobile phase at a flow of 1 ml / min a ZORBAX SB-C18 column (with a SpectraSYSTEM pump and a UV detector 210 nm UV 6000 LP) measured using HPLC).
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18211030 | 2018-12-07 | ||
| PCT/EP2019/083213 WO2020114927A1 (de) | 2018-12-07 | 2019-12-02 | Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3891118A1 true EP3891118A1 (de) | 2021-10-13 |
Family
ID=64661170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19809496.3A Withdrawn EP3891118A1 (de) | 2018-12-07 | 2019-12-02 | Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11420918B2 (de) |
| EP (1) | EP3891118A1 (de) |
| JP (1) | JP2022513699A (de) |
| KR (1) | KR20210100617A (de) |
| CN (1) | CN113382978A (de) |
| WO (1) | WO2020114927A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7574603B2 (ja) * | 2020-10-12 | 2024-10-29 | 住友ベークライト株式会社 | 環式化合物の製造方法 |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2996540A (en) | 1956-07-30 | 1961-08-15 | Sulphite Products Corp | Preparation of para-hydroxybenzoic acid |
| GB818434A (en) * | 1957-04-24 | 1959-08-19 | Monsanto Chemicals | The decarboxylation of aromatic hydroxy acids |
| US3360553A (en) | 1962-07-19 | 1967-12-26 | Asahi Chemical Ind | Process for producing hydroxybenzoic acid |
| BE789996A (fr) * | 1971-10-12 | 1973-04-12 | Int Flavors & Fragrances Inc | Procede de decarboxylation d'acides hydroxyarylcarboxyliques |
| US6114157A (en) | 1998-09-25 | 2000-09-05 | General Electric Company | Method for increasing total production of 4-hydroxybenzoic acid by biofermentation |
| US6030819A (en) | 1998-09-28 | 2000-02-29 | General Electric Company | Genetically engineered microorganisms and method for producing 4-hydroxybenzoic acid |
| US6683231B2 (en) | 2000-06-02 | 2004-01-27 | E. I. Du Pont De Nemours And Company | High level production of p-hydroxybenzoic acid in green plants |
| DE10135012A1 (de) * | 2001-07-18 | 2003-02-06 | Bayer Ag | Verfahren zur Herstellung von Bisphenolen |
| WO2013035103A1 (en) * | 2011-09-05 | 2013-03-14 | Davuluri Ramamohanrao | Phenol c-alkylation process |
| EP2586767A1 (de) * | 2011-10-25 | 2013-05-01 | Bayer MaterialScience AG | Verfahren zur Herstellung von Diarylcarbonaten und Polycarbonaten |
| KR20140022694A (ko) | 2012-08-14 | 2014-02-25 | 삼성전자주식회사 | 생물학적 방법으로 파라-히드록시벤조산을 제조하는 방법 |
| US9732022B2 (en) * | 2012-10-29 | 2017-08-15 | Sabic Global Technologies B.V. | Recovery of materials from a mother liquor residue |
| BR112015010557A2 (pt) | 2012-11-13 | 2018-05-22 | Bayer Materialscience Ag | método para a produção de fenol a partir de fontes renováveis por meio de fermentação. |
| EP3130664B1 (de) | 2014-04-08 | 2025-05-21 | Green Chemicals Co., Ltd. | Transformant coryneformer bakterien und verfahren zur herstellung von 4-hydroxybenzoesäure oder eines salzes davon |
| CN106459958B (zh) | 2014-05-14 | 2020-08-04 | 绿色化学品株式会社 | 使高活性突变型酶高表达的棒状细菌转化体及使用它的4-羟基苯甲酸或其盐的制造方法 |
| JP6303885B2 (ja) | 2014-07-16 | 2018-04-04 | 宇部興産株式会社 | ヒドロキシベンゼン化合物の製造方法 |
| EP3245186A1 (de) | 2015-01-16 | 2017-11-22 | Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO | Verfahren zur herstellung von phenolen aus biomasse |
-
2019
- 2019-12-02 EP EP19809496.3A patent/EP3891118A1/de not_active Withdrawn
- 2019-12-02 KR KR1020217016849A patent/KR20210100617A/ko not_active Withdrawn
- 2019-12-02 US US17/295,240 patent/US11420918B2/en active Active
- 2019-12-02 CN CN201980080847.6A patent/CN113382978A/zh active Pending
- 2019-12-02 JP JP2021531429A patent/JP2022513699A/ja active Pending
- 2019-12-02 WO PCT/EP2019/083213 patent/WO2020114927A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US11420918B2 (en) | 2022-08-23 |
| WO2020114927A1 (de) | 2020-06-11 |
| US20210395177A1 (en) | 2021-12-23 |
| KR20210100617A (ko) | 2021-08-17 |
| JP2022513699A (ja) | 2022-02-09 |
| CN113382978A (zh) | 2021-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2321294B1 (de) | Verfahren zur herstellung eines gemisches von lactid-derivaten | |
| DE69129345T2 (de) | Hydroxyalkylierung von Phenolen oder Thiophenolen mittels zyklisch organischer Kohlensäureester unter Verwendung von Triorganophosphinkatalysatoren | |
| EP0031435A1 (de) | Verfahren zur Herstellung von Glycidyläthern ein- oder mehrwertiger Phenole | |
| DE2514742C3 (de) | Verfahren zur Herstellung von zweiwertigen Phenolderivaten | |
| DE2355690C2 (de) | Verfahren zur Herstellung von Phenol oder substituierten Phenolen | |
| EP4056267A1 (de) | Verfahren und katalysator zur herstellung von phenolbausteinen aus lignin | |
| DE10146689C2 (de) | Verfahren zur Herstellung von Sorbinsäure aus Sorbinsäurepolyester | |
| EP3891118A1 (de) | Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators | |
| DE2344926C3 (de) | Verfahren zur Herstellung von 3-Halogen- bzw. 3,5-Dihalogen-phenolen | |
| EP0025519A1 (de) | Verfahren zur Herstellung von 2-Alkyl- bzw. 2-Arylthiomethylphenol | |
| DE112011103786T5 (de) | Bis(Trifluormethansulfonyl)ethyl tragende Verbindung und Säurekatalysator und Verfahren zum Herstellen derselben | |
| DE2411826A1 (de) | Verfahren zur herstellung von merkaptophenolen | |
| EP3891116B1 (de) | Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung | |
| DE2927714A1 (de) | Verfahren zur herstellung von 4,4'-alkyliden-diphenyl-diisocyanaten | |
| EP3891117B1 (de) | Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in anwesenheit einer brönsted-base | |
| DE69017570T2 (de) | Verfahren zur Herstellung eines Lactons. | |
| DE10135012A1 (de) | Verfahren zur Herstellung von Bisphenolen | |
| DE69905016T2 (de) | Verfahren zur herstellung von dimeren zyklischen estern | |
| EP0001211A1 (de) | Verfahren zur Entfernung von Bleiionen aus Formose und Verwendung der so erhaltenen Formose zur Herstellung von Kunststoff und metholierter Formosen | |
| DE2461129A1 (de) | Verbessertes verfahren zur herstellung von carbamatverbindungen | |
| EP2374785A1 (de) | Reinigung von Tris-hydroxyaryl-Verbindungen | |
| DE69910224T2 (de) | Phosphinligandaktivierte herstellung von tetraaryloxyalkane und diarylcarbonate | |
| DE2854492C2 (de) | Verfahren zur Herstellung von (Phenoxy- bzw. Benzyl)-phenoxypropionsäuren und ihren Alkalisalzen | |
| DE3844443A1 (de) | Chlorformiate aromatischer ketone und verfahren zu deren herstellung | |
| DEB0020872MA (de) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20210707 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
| INTG | Intention to grant announced |
Effective date: 20230828 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20240109 |