WO2015078218A1 - 含有羧基的聚合物、其制备方法和用途、负载型催化剂以及培南类抗生素中间体的制备方法 - Google Patents
含有羧基的聚合物、其制备方法和用途、负载型催化剂以及培南类抗生素中间体的制备方法 Download PDFInfo
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- WO2015078218A1 WO2015078218A1 PCT/CN2014/086240 CN2014086240W WO2015078218A1 WO 2015078218 A1 WO2015078218 A1 WO 2015078218A1 CN 2014086240 W CN2014086240 W CN 2014086240W WO 2015078218 A1 WO2015078218 A1 WO 2015078218A1
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- 0 C*(C*(C)CC(*(C)C(C)(C)C*(C)c1ccc(C=C)cc1)=O)CC(*(C)*(C)C*(C)c1ccc(C=C)cc1)=O Chemical compound C*(C*(C)CC(*(C)C(C)(C)C*(C)c1ccc(C=C)cc1)=O)CC(*(C)*(C)C*(C)c1ccc(C=C)cc1)=O 0.000 description 5
- PCGJINOISDGRLG-UHFFFAOYSA-N CC(CC1)CC1(C)c1ccc(C=C)cc1 Chemical compound CC(CC1)CC1(C)c1ccc(C=C)cc1 PCGJINOISDGRLG-UHFFFAOYSA-N 0.000 description 1
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Definitions
- the invention relates to the field of chemical synthesis, in particular to a functionalized polymer containing a carboxyl group, a preparation method thereof, a use thereof in preparing a supported metal catalyst, a supported metal catalyst and a supported metal catalyst catalyzed carbene insertion reaction A method for preparing a Pein-like antibiotic intermediate.
- chiral or achiral ligands (such as phosphorus ligands and amino ligands, etc.) are usually attached to the polymer by covalent or non-covalent bonds.
- the polymer is used as a carrier for the heavy metal catalyst, and the heavy metal catalyst is supported by the above ligand on the carrier to carry out the loading of the heavy metal catalyst.
- the formed supported catalyst is capable of catalyzing a specific reaction, which will be exemplified below:
- the diketoester compound represented by the following formula (VI) is prepared by catalyzing the diazonium compound represented by the formula (V) under the catalyst 1 (ruthenium catalyst).
- R 2 represents a protecting group of a carboxyl group
- R 3 represents hydrogen or a methyl group
- X represents an oxygen atom or a nitrogen atom substituted by an alkyl group
- R 4 represents a suitably substituted alkyl group.
- the diketone ester compound represented by the above formula (VI) is prepared by an N-H insertion reaction of a diazo compound represented by the chemical formula (V).
- the reaction uses the ruthenium compound shown in the above structure as a catalyst to form a ruthenium carbene with a compound of the formula (V), and at the same time releases a diazonium group to finally form a product (VI), which is an important pepen.
- the supported metal catalyst prepared by using the above-mentioned polymer having a phosphorus ligand and an amino ligand as a catalyst carrier has the following disadvantages: (1): poor mechanical properties, so that the catalyst is easily depleted and supported thereon. The loss rate of expensive heavy metals is higher; (2): the yield of the catalyst is lower; (3): the catalytic activity of the catalyst is generally lower. Especially when the catalyst is loaded with expensive heavy metals such as ruthenium, the catalytic activity and mechanical properties of the catalyst directly affect the industrial production cost.
- the invention aims to provide a carboxyl group-containing polymer, a preparation method and use thereof, a supported catalyst and a preparation method of a Pein-type antibiotic intermediate, so as to solve the heavy metal loss caused by poor mechanical properties of the supported metal catalyst in the prior art.
- a carboxyl group-containing polymer having a molar percentage polymerized from the following monomers: (1) 50% to 99% of monomer A; (2) 0.5% to 25% of monomer B; (3) 0.5% to 25% of monomer C; wherein monomer A has the structure represented by formula ( ⁇ ):
- R represents a phenyl group or COOR', and R' represents an alkyl group of C1 to C10;
- Monomer B has a structure represented by one of formulas (II-1) to (II-8):
- Monomer C has a structure represented by one of formulas (III-1) to (III-7):
- R' represents an alkyl group of C1 to C5, preferably represents a methyl group, an ethyl group, an isopropyl group or a t-butyl group.
- polymer molar percentage is polymerized from the following monomers: (1) 80% to 99% of monomer A; (2) 0.5% to 10% of monomer B; (3) 0.5% to 10% Monomer C.
- polymer molar percentage is polymerized from the following monomers: (1) 90% to 99% of monomer A; (2) 0.5% to 8% of monomer B; (3) 0.5% to 5% Monomer C.
- a process for producing a carboxyl group-containing polymer which is prepared by a suspension polymerization method from a monomer A, a monomer B and a monomer C.
- the polymer is prepared by a suspension polymerization process from monomer A, monomer B, and monomer C in an aqueous medium in the presence of an initiator, a stabilizer, and a porogen.
- the initiator is azobisisobutyronitrile or benzoyl peroxide, and the molar amount of the initiator is 0.05 to 10% of the total molar amount of the monomers.
- the stabilizer is a mixture of a water-soluble polymer and an inorganic salt, preferably a mass ratio of the water-soluble polymer to the inorganic salt is 0.2 to 5:1; the water-soluble polymer is polyvinyl alcohol or gum arabic, and the inorganic salt is Sodium chloride; the mass concentration of the water-soluble polymer in the aqueous medium is 0.1 to 10%, and the mass concentration of the inorganic salt in the aqueous medium is 0.2 to 20%.
- the porogen is one or more of toluene, xylene, chlorobenzene and tetrahydrofuran, and the ratio of the mass of the porogen to the total mass of the monomers is from 0.1 to 3:1.
- the supported metal catalyst is a supported rhodium, palladium, platinum, rhodium or ruthenium catalyst.
- a supported metal catalyst which is supported by the above polymer.
- the supported metal catalyst is a supported rhodium, palladium, platinum, rhodium or ruthenium catalyst.
- the supported metal catalyst is a supported ruthenium catalyst having a structure represented by the following formula (IV):
- R 1 represents a C1-C10 alkyl group, preferably a methyl group, an ethyl group, a tert-butyl group, a n-hexyl group or a n-heptyl group;
- P-COO- represents a residue after dehydrogenation of the polymer, and
- x represents 0.1 to Any number of 4.0.
- P-COOH represents a claim polymer
- x represents an arbitrary number from 0.1 to 4.0
- R 1 represents a C1-C10 alkyl group, preferably a methyl group, an ethyl group, a t-butyl group, a n-hexyl group or an n-heptyl group.
- reaction is carried out in an organic solvent selected from the group consisting of tetrahydrofuran, toluene, xylene, chlorobenzene or diethylene glycol dimethyl ether.
- a process for preparing a penicillin-like antibiotic intermediate by a carbene insertion reaction which is prepared by reacting a compound of the formula (V) under the catalytic action of the supported ruthenium catalyst described above.
- R2 represents p-nitrobenzyl, 2-nitrobenzyl, 3-nitrobenzyl, benzyl, p-chlorobenzyl, p-methylbenzyl, allyl, methyl or ethyl;
- R3 represents Hydrogen or methyl.
- reaction is carried out in an organic solvent selected from the group consisting of ethyl acetate, methyl acetate, isopropyl acetate, 1,4-dioxane, tetrahydrofuran, methyl t-butyl ether, diethyl ether, dichloromethane. Or 1,2-dichloroethane.
- the molar ratio of the supported rhodium catalyst to the compound represented by the formula (V) is from 1:50 to 2,000.
- the temperature of the reaction is 20 to 50 °C.
- a carboxyl group-containing polymer of the present invention, a preparation method and use thereof, a supported catalyst, and a preparation method of a Pein-type antibiotic intermediate are used.
- the carboxyl group-containing polymer provided by the present invention is a crosslinked polymer, and the polymer chain contains a large amount of a benzene ring, which can improve the rigidity and hardness of the polymer, thereby effectively improving the mechanical properties of the polymer.
- a carboxyl group is used as a main functional group, and as a carrier, a carboxyl group is mixed with a heavy metal, and the supported metal catalyst has better connection stability between the metal and the polymer. Both of the above factors can improve the stability of the supported metal catalyst, enabling the catalyst to be used repeatedly without losing catalytic activity. It also reduces the loss of heavy metal active ingredients and reduces production costs.
- the existing supported metal catalysts have problems of loss of heavy metals and high production costs due to poor mechanical properties.
- the inventors of the present invention provide a carboxyl group-containing polymer whose molar percentage is polymerized from the following monomers: (1) 50% to 99% of monomer A; (2) 0.5% ⁇ 25% of monomer B; (3) 0.5% to 25% of monomer C; wherein monomer A has the structure represented by formula ( ⁇ ):
- R represents a phenyl group or COOR', and R' represents an alkyl group of C1 to C10;
- Monomer B has a structure represented by one of formulas (II-1) to (II-8):
- Monomer C has a structure represented by one of formulas (III-1) to (III-7):
- the above polymer provided by the present invention is a crosslinked polymer, and the polymer chain contains a large amount of a benzene ring, which can improve the rigidity and hardness of the polymer, thereby effectively improving the mechanical properties of the polymer.
- a carboxyl group is used as a main functional group, and as a carrier, a carboxyl group is mixed with a heavy metal, and the supported metal catalyst has better connection stability between the metal atom and the polymer. Both of the above factors can improve the stability of the supported metal catalyst, enabling the catalyst to be used repeatedly without losing catalytic activity. It also reduces the loss of heavy metal active ingredients and reduces production costs.
- the catalyst formed by the polymer-supported metal has a higher catalytic activity and is more advantageous for increasing the yield of the reaction.
- R' may be selected in accordance with the above range.
- the above R' represents a C1-C5 alkyl group, preferably a methyl group, an ethyl group, an isopropyl group or a t-butyl group.
- the mechanical properties of the polymer can be improved to some extent as long as the above three types of monomers are contained in the molecular chain.
- the polymer molar percentage is polymerized from (1) 80% to 99% of monomer A; (2) 0.5% to 10% of monomer B; 0.5% to 10% of monomer C.
- the ratio of the benzene ring in the polymer main chain and the content of the carboxyl group can be adjusted, thereby adjusting the mechanical properties of the polymer and the amount of metal that can be supported. Controlling the proportion of the monomer in the above range is advantageous in achieving both the mechanical properties of the final catalyst and the metal loading.
- the polymer molar percentage is polymerized from the following monomers: (1) 90% to 99% of monomer A; (2) 0.5% to 8% of monomer B; (3) 0.5% to 5 % monomer C.
- a process for producing a carboxyl group-containing polymer which is prepared by a suspension polymerization method from a monomer A, a monomer B and a monomer C.
- use solvent as The reaction medium can improve the stability and conversion rate of the reaction.
- the suspension polymerization can provide a homogeneous system for the reaction, and the formed polymer product has a narrow molecular weight distribution and a high quality.
- the above polymer is prepared by a suspension polymerization process from monomer A, monomer B, and monomer C in an aqueous medium in the presence of an initiator, a stabilizer, and a porogen.
- the porogen is capable of forming voids in the prepared polymer matrix to have a high specific surface area, thereby increasing the metal loading of the final supported catalyst and thereby increasing the catalytic activity of the catalyst.
- the above initiator, stabilizer and porogen may be those conventionally used by those skilled in the art in organic synthesis.
- the above initiator includes, but is not limited to, azobisisobutyronitrile or benzoyl peroxide, and the molar amount of the initiator is 0.05 to 10% of the total molar amount of the monomer.
- the stabilizer includes, but is not limited to, a mixture of a water-soluble polymer and an inorganic salt, preferably a mass ratio of the water-soluble polymer to the inorganic salt is 0.2 to 5:1; the water-soluble polymer is polyvinyl alcohol or gum arabic, and the inorganic salt is Sodium chloride; the mass concentration of the water-soluble polymer in the aqueous medium is 0.1 to 10%, and the mass concentration of the inorganic salt in the aqueous medium is 0.2 to 20%.
- the porogen includes, but is not limited to, one or more of toluene, xylene, chlorobenzene and tetrahydrofuran, and the ratio of the mass of the porogen to the total mass of the monomers is from 0.1 to 3:1.
- the use of a carboxyl group-containing polymer as a support for a supported metal catalyst is provided.
- the supported metal catalyst prepared has high mechanical properties.
- the metal is supported on the polymer matrix by a complex reaction between the carboxyl group and the metal, which can improve the load stability of the metal.
- the catalyst can maintain a high catalytic activity for a long period of time during repeated use.
- the supported metal may be a metal well known to those skilled in the art.
- the supported metal catalyst is a supported rhodium, palladium, platinum, rhodium or ruthenium catalyst.
- a supported metal catalyst which is supported by the above polymer.
- the supported metal catalyst is a supported rhodium, palladium, platinum, rhodium or ruthenium catalyst.
- the supported metal catalysts of the above type all have high mechanical properties and catalytic activity.
- the supported metal catalyst is a supported rhodium catalyst having a structure represented by the following formula (IV):
- R 1 represents a C1-C10 alkyl group, preferably a methyl group, an ethyl group, a tert-butyl group, a n-hexyl group or a n-heptyl group;
- P-COO- represents a residue after dehydrogenation of the polymer, and
- x represents 0.1 to Any number of 4.0.
- a process for producing a supported metal catalyst which is obtained by reacting the above polymer with an organic acid salt of cerium.
- a metal atom is supported on a polymer carrier by replacing a hydrogen atom in a carboxyl functional group carried in the polymer with a metal atom in the organic acid salt.
- the reaction formula is as follows:
- P-COOH represents a claim polymer
- x represents an arbitrary number from 0.1 to 4.0
- R 1 represents a C1-C10 alkyl group, preferably a methyl group, an ethyl group, a t-butyl group, a n-hexyl group or an n-heptyl group.
- the supported ruthenium catalyst formed by the above reaction has high catalytic activity.
- the metal ruthenium is supported on the polymer carrier through the carboxyl group, and has strong binding force between the two, so that the catalyst has the advantages of reusable use, small loss rate and high catalytic activity.
- the above reaction is carried out in an organic solvent selected from the group consisting of tetrahydrofuran, toluene, xylene, chlorobenzene or diethylene glycol dimethyl ether.
- a process for preparing a penicillin-like antibiotic intermediate by a carbene insertion reaction which is prepared by reacting a compound of the formula (V) under the catalytic action of the supported ruthenium catalyst described above.
- the prepared supported ruthenium catalyst has high mechanical properties and high catalytic activity.
- the yield of the reaction is high.
- high mechanical properties allow the catalyst to be recycled without loss of activity and loss.
- Expensive metal active ingredients are more suitable for various reaction forms such as batch reaction and continuous mobile phase reaction. In short, compared with the existing preparation method, the reaction cost, the production efficiency, and the environmental pollution can be significantly reduced.
- the process conditions conventionally used by those skilled in the art may be employed.
- the above reaction is carried out in an organic solvent selected from the group consisting of ethyl acetate, methyl acetate, isopropyl acetate, 1,4-dioxane, tetrahydrofuran, methyl t-butyl. Ether, diethyl ether, dichloromethane or 1,2-dichloroethane.
- the molar ratio of the supported rhodium catalyst to the compound of the formula (V) is from 1:50 to 2,000.
- the temperature of the reaction is from 20 to 50 °C.
- the batch reaction scheme is as follows: mixing the supported rhodium catalyst with an organic solvent, stirring for 0 to 2 hours, and then adding a reaction substrate (ie, a compound represented by the formula (V)) to control the reaction temperature to 10 to 120 ° C. , the reaction is 0.5 to 24 hours (depending on the reaction).
- a reaction substrate ie, a compound represented by the formula (V)
- the supported ruthenium catalyst was separated by filtration, washed with a suitable solvent, dried, and used directly for the next cycle of the reaction, and the filtrate was directly used for the next reaction.
- the molar ratio of the reaction substrate to the catalyst (calculated as Rh) is from 50 to 2000:1; and the amount of the reaction solvent is from 5 to 30 mL/g based on the reaction substrate.
- the continuous reaction process is as follows: mixing the supported ruthenium catalyst with an organic solvent, stirring for 0 to 2 hours, adding a certain volume of inert filler, stirring uniformly with the catalyst, and wet-packing into a jacketed tubular reactor, reactor clamp
- the hot water in the set is used as a heat-conducting medium, and the temperature is controlled by 10 to 120 °C.
- the reaction substrate is mixed with an organic solvent, stirred until homogeneous, continuously pumped into the tubular reactor by a feed pump, and the receiving end is continuously received by the receiver, and the receiving liquid can be directly used for the next reaction.
- the space velocity of the reaction substrate solution is 0.01 to 0.1 mL/(min ⁇ mg Rh), and the space velocity referred to herein means the amount of the liquid treated per unit mass of the catalyst per unit time.
- the amount of the reaction solvent is 5 to 30 mL/g based on the reaction substrate.
- the volume ratio of the inert filler to the catalyst is from 0.5 to 5:1.
- the polymer provided by the invention is a cross-linked polymer, has a simple preparation method and a high carboxyl content, and can effectively support a metal salt for the preparation of a supported catalyst, and the obtained catalyst has good catalytic activity and is easy to recover.
- the supported metal catalyst provided by the invention has the advantages of simple preparation method, high loading metal content, high binding efficiency, repeated use without loss of catalytic activity, convenient recovery, reduced catalyst usage, significant reaction cost saving and environmental pollution reduction.
- the method for preparing a Pein-like antibiotic intermediate prepared by the carbene insertion reaction provided by the invention adopts the above-mentioned supported metal catalyst, has high catalytic activity, is convenient for recycling and recycling, and is suitable for various reaction forms such as batch reaction and continuous mobile phase reaction. Compared with the existing preparation method, the reaction cost, the production efficiency, and the environmental pollution can be significantly reduced.
- the obtained white solid was filtered, washed with water (1000 mL ⁇ 2) and methanol (1000 mL), and then washed with a tetrahydrofuran (1000 mL) for 10 hours in a Soxhlet extractor. Drying in vacuo gave Polymer 6 (51.2 g, 69% yield), mp.
- the main particle size of the polymer in the dry state ranges from 100 to 900 ⁇ m.
- the actual content of the carboxyl group can be determined indirectly by reducing the monomer to 12-hydroxydodecanecarboxylic acid with lithium triethylborohydride: 1.0 g of the polymer 6 is taken, suspended in 25 mL of THF, and allowed to stand for 30 to 40 minutes, then After cooling to 0 ° C, 10 mL of a 1N solution of lithium triethylborohydride in THF was added dropwise with stirring, and then the mixture was stirred at room temperature overnight. A mixture of 5 mL of acetic acid and 5 mL of water was added to the system to quench the reaction, and the solid was filtered to remove THF.
- the obtained white solid was filtered, washed with water (1200 mL ⁇ 2) and methanol (1200 mL), and then extracted with THF (1200 mL) for 10 hours in a Soxhlet extractor. Drying in vacuo gave polymer 11 (75.1 g, 72% yield), mp.
- the main particle size of the polymer in the dry state ranges from 200 to 800 ⁇ m.
- the obtained white solid was filtered, washed with water (80 mL ⁇ 2) and methanol (80 mL), and then washed with a mixture of tetrahydrofuran (80 mL) for 10 hours in a Soxhlet extractor. Drying in vacuo gave polymer 18 (2.5 g, 60% yield), mp.
- the main particle size of the polymer in the dry state ranges from 100 to 750 ⁇ m.
- Elemental analysis was used to determine the content of each element: C: 89.30%, H: 7.836%, N: 0.56%.
- the calculated O content was 2.308%.
- the molar content of the N atom was calculated to be 0.400 mmol/g (calculation process: 0.56/14/1), and the actual content of the carboxyl group after correction was 0.386 mmol/g.
- the obtained white solid was filtered, washed with water (100 mL ⁇ 2) and methanol (100 mL), and then washed with THF (100 mL) for 10 hours in a Soxhlet extractor. Drying under vacuum gave polymer 23 (4.40 g, 75% yield), mp.
- the main particle size of the polymer in the dry state ranges from 100 to 750 ⁇ m.
- the content of the carboxyl group was determined as follows:
- Elemental analysis was used to determine the content of each element: C: 89.89%, H: 7.735%, N: 0.54%. The calculated O content was 1.835%. The molar content of the N atom was calculated to be 0.386 mmol/g (calculation process: 0.54/14/1), and after correction, the actual content of the carboxyl group was about 0.378 mmol/g.
- the obtained white solid was filtered, washed with water (100 mL ⁇ 2) and methanol (100 mL), and then washed with THF (100 mL) for 10 hours in a Soxhlet extractor. Drying under vacuum gave polymer 29 (4.31 g, 70% yield), mp.
- the main particle size of the polymer in the dry state ranges from 150 to 750 ⁇ m.
- the polymer 32 (7.7 g, about 2.71 mmol) was suspended in tetrahydrofuran (77 mL) at room temperature and allowed to stand for 0.5 h, then a solution of sodium hydroxide (2.17 g, 54 mmol) in water (36 mL) was added and warmed to 50 ° C Stir for 3 days. Filtration, washed successively with water, 1 mol/L hydrochloric acid, water, saturated sodium hydrogen carbonate, water, methanol, and dried to give polymer 33 (7.1 g). The theoretical content of the carboxyl group was 0.352 mmol/g.
- the main particle size of the polymer in the dry state ranges from 150 to 750 ⁇ m.
- the reaction solution was warmed to 80 ° C and stirred for 24 hours.
- the obtained white solid was filtered, washed with water (120 mL ⁇ 2) and methanol (120mL), Drying in vacuo gave the polymer 40 (7.39 g, 72% yield), mp.
- the main particle size of the polymer in the dry state ranges from 100 to 900 ⁇ m.
- the content of the carboxyl group was determined as follows:
- Elemental analysis was used to determine the content of each element: C: 87.23%, H: 7.799%, N: 0.57%.
- the calculated O content was 4.41%.
- the molar content of the N atom was calculated to be 0.407 mmol/g, and after correction, the actual content of the carboxyl group was about 0.393 mmol/g.
- Polymer 40 FT-IR (KBr, cm -1): no absorption peak near 3420,3025,3001,2921,1737,1601,1493,1452,756,695,536.1800cm -1, indicating that the double bond has been completely polymerized.
- Styrene (5,8 g, 76.8 mmol), monomer (41, 1.23 g, 6.98 mmol), monomer (42, 55% content, a mixture of o-divinylbenzene and p-divinylbenzene, 0.83 g, 3.49 Methyl), AIBN (115 mg, 0.7 mmol) in toluene (4.8 g) was degassed three times with an oil pump and then added to the vigorously stirred aqueous phase. The reaction solution was warmed to 80 ° C and stirred for 24 hours.
- the obtained white solid was filtered, washed with water (120 mL ⁇ 2) and methanol (120mL), Drying under vacuum gave polymer 43 (7.36 g, 76% yield), mp.
- the main particle size of the polymer in the dry state ranges from 200 to 900 ⁇ m.
- the obtained white solid was filtered, washed with water (150 mL ⁇ 2) and methanol (150 mL), Drying in vacuo gave the polymer 50 (10.8 g, 79% yield), mp.
- the main particle size of the polymer in the dry state ranges from 200 to 800 ⁇ m.
- the content of the carboxyl group was determined as follows:
- Elemental analysis was used to determine the content of each element: C: 90.38%, H: 7.740%, N: 0.45%.
- the calculated O content was 1.430%.
- the molar content of the N atom was calculated to be 0.321 mmol/g, and after correction, the carboxyl group content was about 0.312 mmol/g.
- the crude compound 54 (72.4 g) obtained in the previous step and methanol (500 mL) were added to the reaction mixture at room temperature, then potassium carbonate (105 g, 757 mmol) was added and stirred for 2 hours.
- the reaction system was concentrated to no fraction, methyl tert-butyl ether and water were added, and the aqueous phase was extracted with methyl t-butyl ether. The organic phase was combined, washed with brine brine, evaporated
- Dicyclohexyl carbon was added in portions to a solution of compound 55 (20 g, 135 mmol), adipic acid (18.1 g, 135 mmol) and 4-dimethylaminopyridine (1.65 g, 13.5 mmol) in tetrahydrofuran (300 mL).
- Diimide (30.4 g, 148 mmol). Stirring was continued for 4 hours at room temperature, and insolubles were removed by filtration. The filtrate was concentrated, and the ⁇ The residue was purified by silica gel column chromatography tolululululululululululululu
- the main particle size of the polymer in the dry state ranges from 200 to 900 ⁇ m.
- the carboxyl group content was determined in the same manner as in Example 1, and the carboxyl group content was about 0.331 mmol/g.
- the reaction solution was warmed to 80 ° C and stirred for 24 hours.
- the obtained white solid was filtered, washed with water (250 mL ⁇ 2) and methanol (250 mL), Drying under vacuum gave the polymer 60 (14.5 g, 80% yield).
- the theoretical content of the carboxyl group was 0.764 mmol/g.
- the main particle size of the polymer in the dry state ranges from 200 to 900 ⁇ m.
- Examples 12 to 18 prepared a supported metal catalyst using the above polymer as a carrier, and prepared a Pein-like antibiotic intermediate by a carbene reaction using a supported metal catalyst.
- Polymer 6 (1.0 g, 0.358 mmol - CO 2 H / g, prepared in Example 1), bismuth octoate (557 mg, 0.716 mmol) and diethylene glycol dimethyl ether (20 mL) were added to the reaction flask and heated to 160 °C. After 1 hour, the reaction mixture was cooled to room temperature and then THF (20 mL) After filtration, the polymer was washed with tetrahydrofuran until the filtrate was colorless, and the filtrate was collected for recovery of unreacted bismuth octoate.
- the obtained polymer was further washed with dichloromethane (20 mL) and ethyl acetate (20 mL), and then dried under reduced pressure to give a dark-green supported ruthenium catalyst 61 having a ruthenium content of 38,190 ppm (0.37 mmol/g) as determined by ICP.
- Catalyst 61 (324 mg, 0.12 mmol Rh) and methyl acetate (24 mL) were added to the reaction flask and swelled at room temperature for 0.5 hour.
- Compound 2a (3.0 g, 7.7 mmol) was added in one portion and the reaction mixture was heated to 45 to 50 °C. After completion of the reaction, the reaction mixture was cooled to room temperature, and the catalyst 61 was removed by filtration, and then washed with methyl acetate (3 mL ⁇ 2). The combined organic phase containing compound 1a was used directly in the next phospholipidation reaction.
- HPLC external standard yield 99.6% (using a reaction using bismuth octoate as a catalyst), the loss of hydrazine was ⁇ 0.6%.
- Polymer 11 (1.0 g, 0.365 mmol - CO 2 H/g, prepared in Example 2), cesium octoate (568 mg, 0.716 mmol) and toluene (20 mL) were placed in a reaction flask and heated to reflux. After 12 hours, the reaction mixture was cooled to room temperature and then THF (20 mL). After filtration, the polymer was washed with tetrahydrofuran until the filtrate was colorless, and the filtrate was collected for recovery of unreacted bismuth octoate.
- the obtained polymer was further washed with dichloromethane (20 mL) and ethyl acetate (20 mL), and then dried under reduced pressure to give a dark-green supported ruthenium catalyst 62 having a ruthenium content of 32390 ppm (0.31 mmol/g) as determined by ICP.
- Polymer 18 (1.0 g, 0.433 mmol - CO 2 H/g, prepared in Example 3), bismuth octoate (628 mg, 0.808 mmol) and chlorobenzene (20 mL) were placed in a reaction flask and heated to reflux. After 2 hours, the reaction mixture was cooled to room rt. THF (20 mL). After filtration, the polymer was washed with tetrahydrofuran until the filtrate was colorless, and the filtrate was collected for recovery of unreacted bismuth octoate.
- the obtained polymer was further washed with dichloromethane (20 mL) and ethyl acetate (20 mL), and then dried under reduced pressure to give a dark-green supported ruthenium catalyst 63 having a ruthenium content of 37,730 ppm (0.37 mmol/g) as determined by ICP.
- Polymer 18 (1.0 g, 0.433 mmol - CO 2 H/g, prepared in Example 3), hydrazine acetate (182 mg, 0.650 mmol) and chlorobenzene (20 mL) were placed in a reaction flask and heated to reflux. After 2 hours, the reaction mixture was cooled to room rt. THF (20 mL). After filtration, the polymer was washed with tetrahydrofuran until the filtrate was colorless, and the filtrate was collected for recovery of unreacted cerium acetate.
- the obtained polymer was further washed with dichloromethane (20 mL) and ethyl acetate (20 mL), and then dried under reduced pressure to give a dark-green supported ruthenium catalyst 64 having a ruthenium content of 34,240 ppm (0.33 mmol/g) as determined by ICP.
- Catalyst 64 (353 mg, 0.12 mmol Rh) and methyl acetate (24 mL) were added to the reaction flask and swelled at room temperature for 0.5 hour.
- Compound 2a (3.0 g, 7.7 mmol) was added in one portion and the reaction mixture was heated to 45 to 50 °C. After completion of the reaction, the reaction mixture was cooled to room temperature, and the catalyst 64 was removed by filtration, and then washed with ethyl acetate (3 mL ⁇ 2). The combined organic phase containing compound 1a was used directly in the next phospholipidation reaction.
- HPLC external standard yield 95.2% (using a reaction using ruthenium octoate as a catalyst), the amount of ruthenium loss was ⁇ 1.0%.
- Examples 19 to 21 are batch reaction tests or continuous flow to reaction
- Catalyst 63 (327 mg, 0.12 mmol Rh) and methyl acetate (24 mL) were added to the reaction flask and swelled at room temperature for 0.5 hour.
- Compound 2a (3.0 g, 7.7 mmol) was added in one portion and the reaction mixture was heated to 45 to 50 °C. After completion of the reaction, the reaction mixture was cooled to room temperature, and the catalyst 63 was recovered by filtration, and then washed with methyl acetate (5 mL ⁇ 2) and then used directly for the next cycle.
- the supported catalyst 63 can be used more than 20 times without a significant decrease in the reaction yield, and the reaction results are shown in Table 1.
- Examples 22 to 27 prepare a carboxyl group-containing polymer from three monomers of the same type and different molar contents, and prepare a supported metal catalyst and a Pein-type antibiotic intermediate (the same methods as those for synthesizing monomers in Examples 22 to 28) Example 1)
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 24.7 g, 237.4 mmol), monomer (3, 62g, 178.8mmol), monomer (4,82.7g, 178.8mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as in Example 12 except that the organic acid salt of ruthenium selected was ruthenium 2-decyldodecanoate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes are the same as in Example 12.
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 29.6 g, 284.9 mmol), monomer (3, 51.7 g, 149 mmol), monomer (4,68.9 g, 149 mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as that of Example 12 except that the organic acid salt of ruthenium selected was bismuth tert-butylate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes were the same as in Example 12 except that the amount of catalyst used: the amount of supported rhodium catalyst was 0.19 mmol in terms of Rh.
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 61 g, 587.6 mmol), monomer (3, 1 g) , 3mmol), monomer (4, 1.4g, 3mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as that of Example 12 except that the organic acid salt of ruthenium selected was ruthenium acetate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes were the same as in Example 12 except that the amount of catalyst used: the amount of supported rhodium catalyst was 0.0048 mmol in terms of Rh.
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 49.4 g, 474.8 mmol), monomer (3, 21 g, 59.6 mmol), monomer (4, 27.6 g, 59.6 mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as that of Example 12 except that the organic acid salt of ruthenium selected was ruthenium acetate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes were the same as in Example 12, except that the amount of catalyst used: the amount of supported rhodium catalyst was 0.2 mmol in terms of Rh.
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 55.6 g, 534.2 mmol), monomer (3, 16.5g, 47.7mmol), monomer (4, 5.5g, 12mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as that of Example 12 except that the organic acid salt of cerium selected was cerium propionate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes were the same as in Example 12, except that the amount of catalyst used: the amount of supported rhodium catalyst was 0.2 mmol in terms of Rh.
- Copolymerization reaction The operation method and process conditions of the copolymerization reaction are the same as those in Example 1, except that the amount of each monomer is used, and the specific monomer amount is as follows: styrene (5, 55.6 g, 534.2 mmol), monomer (3, 10.3g, 30mmol), monomer (4, 14g, 30mmol)
- a supported ruthenium catalyst was prepared by using the polymer obtained by the above copolymerization reaction as a carrier.
- the specific preparation process was the same as that of Example 12 except that the organic acid salt of ruthenium selected was ruthenium acetate.
- a Pein-like antibiotic intermediate was prepared by using the supported ruthenium catalyst prepared in the above ruthenium exchange reaction as a catalyst.
- the specific materials and processes were the same as in Example 12, except that the amount of catalyst used: the amount of supported rhodium catalyst was 0.2 mmol in terms of Rh.
- the above-mentioned embodiments of the present invention achieve the following technical effects: the use of the carboxyl group-containing polymer provided by the present invention as a carrier of a supported metal catalyst can effectively improve the mechanical properties and metal of the catalyst.
- the binding stability between the active ingredient and the carrier enables the supported metal catalyst to be used repeatedly without loss of activity, and the rate of loss of expensive metals in the catalyst is low.
- it can also increase the reaction yield of the Pein-like antibiotics.
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Abstract
Description
Claims (20)
- 根据权利要求1所述的聚合物,其特征在于,所述R’代表C1~C5的烷基,优选代表甲基、乙基、异丙基或叔丁基。
- 根据权利要求1或2所述的聚合物,其特征在于,所述聚合物按摩尔百分比由以下单体聚合而成:(1)80%~99%的所述单体A;(2)0.5%~10%的所述单体B;(3)0.5%~10%的所述单体C。
- 根据权利要求3所述的聚合物,其特征在于,所述聚合物按摩尔百分比由以下单体聚合而成:(1)90%~99%的所述单体A;(2)0.5%~8%的所述单体B;(3)0.5%~5%的所述单体C。
- 一种权利要求1至4中任一项所述含有羧基的聚合物的制备方法,其特征在于,所述聚合物由单体A、单体B和单体C通过悬浮聚合方法制备而成。
- 根据权利要求5所述的制备方法,其特征在于,所述聚合物由所述单体A、所述单体B和所述单体C于水介质中在引发剂、稳定剂和致孔剂的存在下通过所述悬浮聚合方法制成。
- 根据权利要求6所述的制备方法,其特征在于,所述引发剂为偶氮二异丁腈或过氧化苯甲酰,所述引发剂的摩尔量为单体总摩尔量的0.05~10%。
- 根据权利要求6所述的制备方法,其特征在于,所述稳定剂为水溶性聚合物和无机盐组成的混合物,优选所述水溶性聚合物与所述无机盐的质量比为0.2~5:1;所述水溶性聚合物为聚乙烯醇或***树胶,所述无机盐为氯化钠;所述水溶性聚合物在所述水介质中的质量浓度为0.1~10%,所述无机盐在所述水介质中的质量浓度为0.2~20%。
- 根据权利要求6所述的制备方法,其特征在于,所述致孔剂为甲苯、二甲苯、氯苯和四氢呋喃中的一种或多种,所述致孔剂质量与单体总质量的比为0.1~3:1。
- 一种权利要求1至4中任一项所述的含有羧基的聚合物作为负载型金属催化剂的载体的用途。
- 根据权利要求10所述的用途,其特征在于,所述负载型金属催化剂为负载型铑、钯、铂、钌或铱催化剂。
- 一种负载型金属催化剂,其特征在于,以权利要求1至4中任一项所述的聚合物为载体。
- 根据权利要求12所述的催化剂,其特征在于,所述负载型金属催化剂为负载型铑、钯、铂、钌或铱催化剂。
- 根据权利要求15所述的制备方法,其特征在于,所述反应在有机溶剂中进行,所述有机溶剂选自四氢呋喃、甲苯、二甲苯、氯苯或二乙二醇二甲醚。
- 根据权利要求17所述的方法,其特征在于,所述反应在有机溶剂中进行,所述有机溶剂选自乙酸乙酯、乙酸甲酯、乙酸异丙酯、1,4-二氧六环、四氢呋喃、甲基叔丁基醚、***、二氯甲烷或1,2-二氯乙烷。
- 根据权利要求17或18所述的方法,其特征在于,所述负载型金属催化剂与所述式(V)所示化合物的摩尔比为1:50~2000。
- 根据权利要求19所述的方法,其特征在于,所述反应的温度为20~50℃。
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CN105669429A (zh) * | 2016-03-10 | 2016-06-15 | 昆明理工大学 | 一种辛酸铑的制备方法 |
US10399071B2 (en) | 2013-11-29 | 2019-09-03 | Asymchem Laboratories (Tianjin) Co., Ltd. | Polymer containing carboxyl group, preparation method and application thereof, supported catalyst and preparation methods thereof and preparation methods of penem antibiotic intermediate |
CN114805817A (zh) * | 2021-01-28 | 2022-07-29 | 万华化学集团股份有限公司 | 一种双金属催化剂及其制备方法和在制备聚醚多元醇中的应用 |
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CN114805817A (zh) * | 2021-01-28 | 2022-07-29 | 万华化学集团股份有限公司 | 一种双金属催化剂及其制备方法和在制备聚醚多元醇中的应用 |
CN114805817B (zh) * | 2021-01-28 | 2023-07-11 | 万华化学集团股份有限公司 | 一种双金属催化剂及其制备方法和在制备聚醚多元醇中的应用 |
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