CN113582934A - Preparation method and application of Pentane metal-free homogeneous catalyst - Google Patents
Preparation method and application of Pentane metal-free homogeneous catalyst Download PDFInfo
- Publication number
- CN113582934A CN113582934A CN202110882658.XA CN202110882658A CN113582934A CN 113582934 A CN113582934 A CN 113582934A CN 202110882658 A CN202110882658 A CN 202110882658A CN 113582934 A CN113582934 A CN 113582934A
- Authority
- CN
- China
- Prior art keywords
- pentane
- metal
- homogeneous catalyst
- epoxy compound
- free homogeneous
- 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.)
- Granted
Links
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000002815 homogeneous catalyst Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000006243 chemical reaction Methods 0.000 claims abstract description 71
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000004593 Epoxy Substances 0.000 claims abstract description 42
- 150000001875 compounds Chemical class 0.000 claims abstract description 41
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 31
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 28
- 238000007334 copolymerization reaction Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- -1 amine salt Chemical class 0.000 claims abstract description 7
- 150000005676 cyclic carbonates Chemical class 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 64
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 48
- 229910052757 nitrogen Inorganic materials 0.000 claims description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 27
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 24
- 239000002244 precipitate Substances 0.000 claims description 23
- 239000000047 product Substances 0.000 claims description 23
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 10
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 9
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 9
- 229920001577 copolymer Polymers 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- 239000007795 chemical reaction product Substances 0.000 claims description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 6
- 238000002390 rotary evaporation Methods 0.000 claims description 5
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 4
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 claims description 4
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 claims description 3
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims description 3
- YFOOEYJGMMJJLS-UHFFFAOYSA-N 1,8-diaminonaphthalene Chemical compound C1=CC(N)=C2C(N)=CC=CC2=C1 YFOOEYJGMMJJLS-UHFFFAOYSA-N 0.000 claims description 3
- AXNUJYHFQHQZBE-UHFFFAOYSA-N 3-methylbenzene-1,2-diamine Chemical compound CC1=CC=CC(N)=C1N AXNUJYHFQHQZBE-UHFFFAOYSA-N 0.000 claims description 3
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 3
- AWMVMTVKBNGEAK-UHFFFAOYSA-N Styrene oxide Chemical compound C1OC1C1=CC=CC=C1 AWMVMTVKBNGEAK-UHFFFAOYSA-N 0.000 claims description 3
- 238000007259 addition reaction Methods 0.000 claims description 2
- 150000003863 ammonium salts Chemical class 0.000 claims description 2
- 239000007789 gas Substances 0.000 claims 1
- 239000003054 catalyst Substances 0.000 abstract description 21
- 238000006352 cycloaddition reaction Methods 0.000 abstract description 13
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- RIPZIAOLXVVULW-UHFFFAOYSA-N pentane-2,4-dione Chemical compound CC(=O)CC(C)=O.CC(=O)CC(C)=O RIPZIAOLXVVULW-UHFFFAOYSA-N 0.000 abstract 1
- 238000001291 vacuum drying Methods 0.000 description 16
- 230000035484 reaction time Effects 0.000 description 12
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 9
- 235000019441 ethanol Nutrition 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- 229910021645 metal ion Inorganic materials 0.000 description 4
- 150000004820 halides Chemical class 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002879 Lewis base Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004651 carbonic acid esters Chemical class 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 150000007527 lewis bases Chemical class 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
- C07D243/08—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 not condensed with other rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
- C07D243/10—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D243/00—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms
- C07D243/06—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4
- C07D243/10—Heterocyclic compounds containing seven-membered rings having two nitrogen atoms as the only ring hetero atoms having the nitrogen atoms in positions 1 and 4 condensed with carbocyclic rings or ring systems
- C07D243/12—1,5-Benzodiazepines; Hydrogenated 1,5-benzodiazepines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D259/00—Heterocyclic compounds containing rings having more than four nitrogen atoms as the only ring hetero atoms
-
- 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
- C08G75/00—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule
- C08G75/26—Polythioesters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Polyesters Or Polycarbonates (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a preparation method of a Pentane metal-free homogeneous catalyst, which takes acetylacetone (2, 4-pentanedione) and organic amine salt as raw materials to obtain the Pentane metal-free homogeneous catalyst by a one-step method; the prepared catalyst can be used for catalyzing the cycloaddition reaction of an epoxy compound and carbon dioxide to prepare cyclic carbonate and can also be used for catalyzing the copolymerization reaction of the epoxy compound and sulfur dioxide to prepare the polysulfite; the preparation method of the invention has the advantages of simple and easily obtained raw materials, simple preparation method, economy and environmental protection. The catalyst has the advantages of small dosage, high activity, mild reaction conditions, convenience for large-scale production and important industrial application prospect.
Description
Technical Field
The invention relates to a preparation technology and application of a Pentane metal-free homogeneous catalyst, in particular to a preparation method of the Pentane metal-free homogeneous catalyst, a method for catalyzing copolymerization of sulfur dioxide and an epoxy compound and a method for cycloaddition reaction of carbon dioxide and the epoxy compound.
Background
Sulfur dioxide (SO)2) As a product of fossil combustion, is a toxic, odorous gaseous pollutant; with SO2The discharge of (2) can generate acid rain and photochemical smog, and seriously endanger human health and ecological environment. In recent years, researchers have discovered that epoxy compounds can be used with SO2Copolymerization reaction is carried out, and sulfuryl (-SO) can be introduced into the product2-) to impart excellent mechanical properties, chemical resistance, as well as good permeability and biocompatibility, etc. Can be applied to the fields of electrode composite materials, thermosetting adhesives, drug transportation, sewage purification and the like. However, in the copolymerization, the presence of the monomer is difficult to react with SO2Low selectivity of the polymerized or produced poly sulfite, resulting in SO2The copolymerization is difficult to realize industrialization. Over the past decades, researchers have developed a variety of catalysts to catalyze SO2And epoxy compound, including organic metal catalyst, peroxide catalyst, Lewis acid/base catalyst, inorganic salt catalyst, etc. However, these catalysts still have problems of containing metal ions, difficult separation, complicated preparation method, poor catalytic effect, and the like. Therefore, it is urgent to find a metal-free catalyst with environmental protection and high efficiency.
Carbon dioxide (CO)2) Is a main greenhouse gas, and is a non-toxic, low-cost and rich renewable carbon source. Vigorous development of CO2The green utilization technology improves the added value of the product and has important economic and environmental significance. CO 22Can obtain cyclic carbonate through cycloaddition reaction with epoxy compound, and has wide application prospect in the fields of plastic raw materials, pharmacy, fine chemicals and the like. However, due to CO2Thus, there is a need to develop a high performance catalyst for CO promotion2Ring-opening addition reaction of (1). Researchers developed catalysts such as metal complexes, organic bases, and alkali halides to catalyze CO2Cycloaddition reaction with epoxy compound. But also has metal ion pollution and goldThe method has the problems of high cost, complex operation and the like, so that a green, efficient and low-cost catalyst needs to be researched and developed.
In recent years, nonmetal catalysts are widely researched by researchers by virtue of the characteristics of low price, high activity, mild reaction conditions and the like. The catalyst contains-OH and-NH2Hydrogen bond donors such as-COOH, etc., which can form hydrogen bonds with oxygen atoms of epoxy groups, polarize C-O bonds in the epoxide, weaken the electron cloud density thereof, effectively replace metal ions and halides, and avoid the problems of catalyst poisoning, halide corrosion on stainless steel reaction kettles, etc. caused by the falling of the metal ions.
Disclosure of Invention
The invention provides a preparation method of a Pentane metal-free homogeneous catalyst, aiming at the problems that the copolymerization reaction conditions of sulfur dioxide and epoxy compounds and the cycloaddition reaction conditions of carbon dioxide and epoxy compounds are harsh, the catalytic activity of the traditional catalyst is low, the traditional catalyst is not environment-friendly and the like.
The organic ammonium salt can be one of tetraethylenepentamine, ethylenediamine, o-phenylenediamine, 1, 8-diaminonaphthalene and 2, 3-diaminotoluene; the molar ratio of the acetylacetone to the organic amine salt is 2: 1-5: 1.
The invention also aims to apply the Pentane metal-free homogeneous catalyst prepared by the method to the preparation of the polysulfite by catalyzing the copolymerization reaction of sulfur dioxide and an epoxy compound, and specifically, the epoxy compound and the Pentane metal-free homogeneous catalyst are sequentially added into a high-pressure reaction kettle; and introducing nitrogen with the purity of 99.99% into a high-pressure reaction kettle, replacing the nitrogen with air in the kettle for 2-3 times, introducing sulfur dioxide with the purity of 99%, wherein the pressure of the sulfur dioxide is 0.2MPa, the reaction temperature is set to be 50-90 ℃, reacting for 4-24 hours, then cooling, dissolving a reaction product by using dichloromethane, adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate by using methanol for 3-4 times, and vacuum drying the washed precipitate at 40 ℃ for 24 hours to obtain a copolymer of the sulfur dioxide and an epoxy compound, namely the poly sulfite.
In the copolymerization reaction of sulfur dioxide and an epoxy compound, the molar ratio of the Pentane metal-free homogeneous catalyst to the epoxy compound is 1: 100-1: 1000.
The invention also aims to apply the Pentane metal-free homogeneous catalyst prepared by the method in the cycloaddition reaction of carbon dioxide and an epoxy compound, and specifically, the epoxy compound and the Pentane metal-free homogeneous catalyst are sequentially added into a high-pressure reaction kettle; and introducing nitrogen with the purity of 99.99% into a high-pressure reaction kettle, replacing the nitrogen with air in the kettle for 2-3 times, introducing carbon dioxide with the purity of 99%, setting the pressure of the carbon dioxide to be 0.5-4 MPa, setting the reaction temperature to be 70-110 ℃, cooling after reacting for 3-7 hours, and obtaining the product, namely the cyclic carbonate after the reaction is finished.
In the cycloaddition reaction of carbon dioxide and an epoxy compound, the molar ratio of the Pentane metal-free homogeneous catalyst to the epoxy compound is 1: 100-1: 1000.
The epoxy compound is one of epoxy cyclohexane, epoxy propane, 1, 2-epoxybutane, styrene oxide and epoxy chloropropane.
Compared with the prior art, the invention has the following advantages:
(1) the Pentane metal-free homogeneous catalyst is prepared by using acetylacetone and organic amine salt through a one-step method for the first time, and the catalyst can be used for catalyzing the cycloaddition reaction of an epoxy compound and carbon dioxide to prepare cyclic carbonate and catalyzing the copolymerization reaction of the epoxy compound and sulfur dioxide to prepare polysulfite;
(2) the catalyst of the invention has the advantages of simple preparation method, easy operation, less catalyst consumption, low cost, high yield and easy realization of green industrial production.
Drawings
FIG. 1 is a Fourier transform Infrared Spectroscopy (FTIR) plot of the Pentane-based metal-free homogeneous catalyst prepared in example 1;
FIG. 2 is a Fourier transform infrared spectroscopy (FTIR) plot of the polysulfite prepared in example 2;
FIG. 3 is prepared as in example 3Cyclic carbonic acid esters of (2)1H NMR spectrum;
FIG. 4 is the polysulfite prepared in example 41H NMR spectrum.
Detailed Description
The invention is explained in more detail below with reference to examples and figures, without limiting the scope of the invention.
Example 1:
(1) sequentially adding 8.23mL of acetylacetone and 70mL of anhydrous ethanol into a 50mL three-neck flask, dropwise adding 7.57mL of tetraethylenepentamine, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 75 ℃ for 24 hours after dropwise adding;
(2) after the reaction is finished, transferring the reacted solution into a single-neck flask, carrying out rotary evaporation on an ethanol solution at 60 ℃, then drying the solution in a vacuum drying oven at 50 ℃ for 12 hours, and characterizing the obtained product by Fourier transform infrared spectroscopy (FTIR), wherein the FTIR is shown in figure 1; as can be seen from FIG. 1, at 3352cm-1And 1708cm-1No reactant-NH-found therein2Characteristic peak with C = O, instead of 1623cm-1The stretching vibration of the C = N bond, which appears here, initially proves the successful synthesis of the catalyst.
(3) Adding 5mL of epoxy cyclohexane and 0.034g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle in sequence according to the molar ratio of 500: 1; then introducing nitrogen with the purity of 99.99 percent into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and then introducing sulfur dioxide with the purity of 99 percent into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.2 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 80 ℃ and the reaction time at 6 h; dissolving a reaction product by using dichloromethane, then adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 3 times by using methanol, placing the washed precipitate in a vacuum drying oven, and drying in vacuum at 40 ℃ for 24 hours to obtain the copolymer of sulfur dioxide and an epoxy compound. Wherein the conversion rate of the epoxy cyclohexane is 93 percent, and the selectivity of the polysulfite is 88 percent.
(4) Sequentially adding 5mL of epoxy chloropropane and 0.089g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the mol ratio of 250:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 100 ℃, the carbon dioxide pressure at 1MPa and the reaction time at 6 h; cooling to obtain the cycloaddition product of carbon dioxide and epoxy compound, wherein the yield of the product is 98%, and the selectivity can reach 99%.
Example 2:
(1) sequentially adding 8.23mL of acetylacetone and 60mL of anhydrous ethanol into a 50mL three-neck flask, dropwise adding 2.67mL of ethylenediamine, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 60 ℃ for 12h after dropwise adding;
(2) after the reaction is finished, the solution after the reaction is transferred to a single-neck flask, the ethanol solution is evaporated in a rotary manner at the temperature of 60 ℃, and then the solution is dried in a vacuum drying oven for 12 hours at the temperature of 50 ℃.
(3) Adding 5mL of epoxy cyclohexane and 0.110g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle in sequence according to the molar ratio of 100: 1; then introducing nitrogen with the purity of 99.99 percent into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and then introducing sulfur dioxide with the purity of 99 percent into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.2 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 50 ℃ and the reaction time at 4 h; dissolving a reaction product by using dichloromethane, then adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 3 times by using methanol, placing the washed precipitate in a vacuum drying oven, and drying in vacuum at 40 ℃ for 24 hours to obtain the copolymer of sulfur dioxide and an epoxy compound. The resulting product was characterized by Fourier transform Infrared Spectroscopy (FTIR), as can be found in FIG. 2 at 1202cm-1And 725cm-1Vibration peaks related to S = O and S-O appear at the parts respectively, and the existence of sulfur dioxide on the main chain is confirmed; wherein the conversion rate of the epoxy cyclohexane is 96 percent, and the selectivity of the poly sulfite is 73 percent;
(4) sequentially adding 5mL of epoxy chloropropane and 0.143g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the molar ratio of 100:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 70 ℃, the pressure of carbon dioxide at 0.5MPa and the reaction time at 3 h; cooling to obtain the cycloaddition product cyclic carbonate of carbon dioxide and epoxy compound, wherein the yield of the product is 89%, and the selectivity can reach 94%.
Example 3:
(1) sequentially adding 20.57mL of acetylacetone and 80mL of anhydrous ethanol into a 50mL three-neck flask, dropwise adding 7.57mL of tetraethylenepentamine, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 90 ℃ for 24 hours after dropwise adding;
(2) after the reaction is finished, the solution after the reaction is transferred to a single-neck flask, the ethanol solution is evaporated in a rotary manner at the temperature of 60 ℃, and then the solution is dried in a vacuum drying oven for 12 hours at the temperature of 50 ℃.
(3) Adding 5mL of epoxy cyclohexane and 0.017g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle in sequence according to the molar ratio of 1000: 1; then introducing nitrogen with the purity of 99.99 percent into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 3 times, and then introducing sulfur dioxide with the purity of 99 percent into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.2 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 90 ℃ and the reaction time at 24 h; dissolving a reaction product by using dichloromethane, then adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 4 times by using methanol, placing the washed precipitate in a vacuum drying oven, and carrying out vacuum drying at 40 ℃ for 24 hours to obtain a copolymer of sulfur dioxide and an epoxy compound; the epoxycyclohexane conversion was 97% and the polysulfite selectivity was 74%.
(4) Sequentially adding 5mL of epoxy chloropropane and 0.023g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the molar ratio of 1000:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 3 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 110 ℃, the carbon dioxide pressure at 4MPa and the reaction time at 7 h; cooling to obtain carbon dioxideCycloaddition products with epoxy compounds cyclic carbonates. By using1The resulting product was characterized by H NMR spectrum as shown in FIG. 3; the product yield is 82%, and the selectivity can reach 98%.
Example 4:
(1) sequentially adding 8.23mL of acetylacetone and 80mL of absolute ethyl alcohol into a 50mL three-neck flask, dropwise adding 4.2mL of o-phenylenediamine, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 90 ℃ for 12 hours after dropwise adding;
(2) after the reaction is finished, transferring the reacted solution into a single-mouth flask, carrying out rotary evaporation at 60 ℃ to obtain an ethanol solution, and drying in a vacuum drying oven at 50 ℃ for 12 hours;
(3) adding 5mL of propylene oxide and 0.039g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle in sequence according to the molar ratio of 500: 1; then introducing nitrogen with the purity of 99.99 percent into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 3 times, and then introducing sulfur dioxide with the purity of 99 percent into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.2 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 110 ℃ and the reaction time at 4 h; dissolving a reaction product by using dichloromethane, then adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 4 times by using methanol, placing the washed precipitate in a vacuum drying oven, and drying in vacuum at 40 ℃ for 24 hours to obtain the copolymer of sulfur dioxide and an epoxy compound. By using1The resulting product was characterized by H NMR spectrum, as in fig. 4; the epoxycyclohexane conversion was 99% and the polysulfite selectivity was 65%.
(4) Sequentially adding 5mL of propylene oxide and 0.078g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the mol ratio of 250:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 110 ℃, the carbon dioxide pressure at 1MPa and the reaction time at 5 h; cooling to obtain a cycloaddition product of carbon dioxide and an epoxy compound, namely cyclic carbonate; the yield of the product is 80 percent, and the selectivity can reach 95 percent.
Example 5:
(1) sequentially adding 8.23mL of acetylacetone and 75mL of absolute ethyl alcohol into a 50mL three-neck flask, dropwise adding 5.61mL of 1, 8-diaminonaphthalene, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 75 ℃ for 18h after dropwise adding;
(2) after the reaction is finished, transferring the reacted solution into a single-mouth flask, carrying out rotary evaporation at 60 ℃ to obtain an ethanol solution, and drying in a vacuum drying oven at 50 ℃ for 12 hours;
(3) sequentially adding 5mL of epoxy chloropropane and 0.0451g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the molar ratio of 500:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 3 times, and introducing sulfur dioxide with the purity of 99% into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.2 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 90 ℃ and the reaction time at 9 h; dissolving a product obtained by using dichloromethane, adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 3 times by using methanol, placing the washed precipitate in a vacuum drying oven, and carrying out vacuum drying at 40 ℃ for 24 hours to obtain the copolymer of sulfur dioxide and an epoxy compound, wherein the conversion rate of epoxy chloropropane is 90%, and the selectivity of the poly sulfite is 60%.
(4) Sequentially adding 5mL of epoxy chloropropane and 0.0451g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the molar ratio of 500:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 80 ℃, the pressure of carbon dioxide at 2MPa and the reaction time at 20 h; cooling to obtain the cycloaddition product of carbon dioxide and epoxy compound, wherein the yield of the product is 83 percent, and the selectivity can reach 99 percent.
Example 6:
(1) sequentially adding 8.34mL of acetylacetone and 75mL of absolute ethyl alcohol into a 50mL three-neck flask, adding 4.89g of 2, 3-diaminotoluene, and placing the three-neck flask into an oil bath kettle for heating reflux reaction at 65 ℃ for 20 hours;
(2) after the reaction is finished, transferring the reacted solution into a single-mouth flask, carrying out rotary evaporation at 60 ℃ to obtain an ethanol solution, and drying in a vacuum drying oven at 50 ℃ for 12 hours;
(3) sequentially adding 5mL of 1, 2-butylene oxide and 0.033g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the molar ratio of 500:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 3 times, and introducing sulfur dioxide with the purity of 99% into the high-pressure reaction kettle, wherein the pressure of the sulfur dioxide is 0.5 MPa; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 90 ℃ and the reaction time at 9 h; dissolving the obtained product by using dichloromethane, adding methanol for precipitation, filtering to obtain a precipitate, washing the precipitate for 3 times by using methanol, placing the washed precipitate in a vacuum drying oven, and carrying out vacuum drying at 40 ℃ for 24 hours to obtain the copolymer of sulfur dioxide and an epoxy compound, wherein the conversion rate of epoxy chloropropane is 87%, and the selectivity of the poly sulfite is 60%.
(4) Sequentially adding 5mL of styrene oxide and 0.051g of Pentane metal-free homogeneous catalyst into a 50mL high-pressure reaction kettle according to the mol ratio of 250:1, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, repeatedly introducing the nitrogen for 2 times, and introducing carbon dioxide with the purity of 99% into the high-pressure reaction kettle; after the introduction is finished, closing the inlet and outlet valves, setting the rotating speed at 280r/min, the temperature at 80 ℃, the pressure of carbon dioxide at 2MPa and the reaction time at 20 h; cooling to obtain the cycloaddition product of carbon dioxide and epoxy compound, wherein the yield of the product is 64%, and the selectivity can reach 97%.
Claims (7)
1. A preparation method of a Pentane metal-free homogeneous catalyst is characterized by comprising the following steps: dissolving acetylacetone and organic amine salt in 60-80 mL of absolute ethanol, reacting at 60-90 ℃ for 12-24 h, removing ethanol from a reaction product by rotary evaporation, and drying to obtain the Pentane metal-free homogeneous catalyst.
2. The method of preparing a Pentane-based metal-free homogeneous catalyst of claim 1, wherein: the organic ammonium salt is one of tetraethylenepentamine, ethylenediamine, o-phenylenediamine, 1, 8-diaminonaphthalene and 2, 3-diaminotoluene; the molar ratio of the acetylacetone to the organic amine salt is 2: 1-5: 1.
3. The use of the Pentane-based metal-free homogeneous catalyst prepared by the method of claim 1 for catalyzing the copolymerization of sulfur dioxide and an epoxy compound, wherein: sequentially adding an epoxy compound and a Pentane metal-free homogeneous catalyst into a high-pressure reaction kettle, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, replacing the nitrogen with air in the kettle for 2-3 times, introducing sulfur dioxide gas with the purity of 99%, wherein the pressure of the sulfur dioxide is 0.2MPa, reacting at 50-90 ℃ for 4-24 hours, cooling, dissolving a reaction product by using dichloromethane, adding methanol for precipitation, filtering, collecting the precipitate, washing the precipitate for 3-4 times by using methanol, and drying to obtain a copolymer of the sulfur dioxide and the epoxy compound, namely the poly-sulfite.
4. The use of the Pentane-based metal-free homogeneous catalyst prepared by the method of claim 1 for catalyzing the addition reaction of carbon dioxide and an epoxy compound, wherein: sequentially adding an epoxy compound and a Pentane metal-free homogeneous catalyst into a high-pressure reaction kettle, introducing nitrogen with the purity of 99.99% into the high-pressure reaction kettle, replacing the nitrogen with air in the kettle for 2-3 times, introducing carbon dioxide with the purity of 99%, reacting at 70-110 ℃ for 3-7 hours under the pressure of 0.5-4 MPa, cooling, and obtaining a product, namely the cyclic carbonate after the reaction is finished.
5. Use according to claim 3, characterized in that: the molar ratio of the Pentane metal-free homogeneous catalyst to the epoxy compound is 1: 100-1: 1000.
6. Use according to claim 4, characterized in that: the molar ratio of the Pentane metal-free homogeneous catalyst to the epoxy compound is 1: 100-1: 1000.
7. Use according to claim 3 or 4, characterized in that: the epoxy compound is one of epoxy cyclohexane, epoxy propane, 1, 2-epoxybutane, styrene oxide and epoxy chloropropane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110882658.XA CN113582934B (en) | 2021-08-02 | 2021-08-02 | Preparation method and application of Pentane metal-free homogeneous catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110882658.XA CN113582934B (en) | 2021-08-02 | 2021-08-02 | Preparation method and application of Pentane metal-free homogeneous catalyst |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113582934A true CN113582934A (en) | 2021-11-02 |
CN113582934B CN113582934B (en) | 2024-01-09 |
Family
ID=78253949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110882658.XA Active CN113582934B (en) | 2021-08-02 | 2021-08-02 | Preparation method and application of Pentane metal-free homogeneous catalyst |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113582934B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115536803A (en) * | 2022-10-27 | 2022-12-30 | 大连理工大学 | Preparation method of sulfur dioxide-based Polyurethane (PES) |
CN116354807A (en) * | 2023-03-23 | 2023-06-30 | 昆明理工大学 | Solvent-free synthesis method of nonmetal catalyst and application thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102356086A (en) * | 2009-03-18 | 2012-02-15 | 泰恩河畔纽卡斯尔大学 | Aluminum complexes and their use in the synthesis of cyclic carbonates |
CN102580775A (en) * | 2011-12-30 | 2012-07-18 | 河北工业大学 | Schiff base complex catalyst for synthesizing diphenyl carbonate through oxidative carbonylation of phenol |
CN103030557A (en) * | 2013-01-09 | 2013-04-10 | 四川大学 | Method for generating phenylacetate by acetophenone in one step |
CN107827764A (en) * | 2017-11-27 | 2018-03-23 | 上海应用技术大学 | A kind of preparation method of double β amino ketones or double β amino esters |
-
2021
- 2021-08-02 CN CN202110882658.XA patent/CN113582934B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102356086A (en) * | 2009-03-18 | 2012-02-15 | 泰恩河畔纽卡斯尔大学 | Aluminum complexes and their use in the synthesis of cyclic carbonates |
CN102580775A (en) * | 2011-12-30 | 2012-07-18 | 河北工业大学 | Schiff base complex catalyst for synthesizing diphenyl carbonate through oxidative carbonylation of phenol |
CN103030557A (en) * | 2013-01-09 | 2013-04-10 | 四川大学 | Method for generating phenylacetate by acetophenone in one step |
CN107827764A (en) * | 2017-11-27 | 2018-03-23 | 上海应用技术大学 | A kind of preparation method of double β amino ketones or double β amino esters |
Non-Patent Citations (1)
Title |
---|
李珍 等: ""催化剂催化二氧化硫共聚的研究进展"", 《高分子材料科学与工程》, vol. 36, no. 6, pages 184 - 190 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115536803A (en) * | 2022-10-27 | 2022-12-30 | 大连理工大学 | Preparation method of sulfur dioxide-based Polyurethane (PES) |
CN115536803B (en) * | 2022-10-27 | 2023-07-11 | 大连理工大学 | Preparation method of sulfur dioxide-based polysulfate polyurethane |
CN116354807A (en) * | 2023-03-23 | 2023-06-30 | 昆明理工大学 | Solvent-free synthesis method of nonmetal catalyst and application thereof |
CN116354807B (en) * | 2023-03-23 | 2024-04-12 | 昆明理工大学 | Solvent-free synthesis method of nonmetal catalyst and application thereof |
Also Published As
Publication number | Publication date |
---|---|
CN113582934B (en) | 2024-01-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113582934B (en) | Preparation method and application of Pentane metal-free homogeneous catalyst | |
CN113072672B (en) | Preparation of benzotrithiophene-benzothiazolyl covalent organic framework material and application of benzotrithiophene-benzothiazolyl covalent organic framework material in photocatalytic water decomposition to produce oxygen | |
CN107537569B (en) | Ionic covalent organic framework catalyst, preparation method and catalytic application | |
CN105949129A (en) | Imidazolium bromide ionic liquid containing amine groups and preparation method and application of ionic liquid | |
CN109880087B (en) | Covalent triazine organic framework material with triphenylamine structure and preparation method and application thereof | |
CN113087923B (en) | Azine-connected benzotrithienyl covalent organic framework material and preparation method and application thereof | |
CN105642353A (en) | Cobalt, chromium or zinc complex conjugated micropore polymer catalyst as well as preparation method and application thereof | |
CN112813456A (en) | Photoanode material based on covalent organic framework and preparation method and application thereof | |
CN108586623B (en) | Cellulose-based Schiff base catalyst and preparation method and application thereof | |
CN114437364B (en) | Metal-coupled triazine porous organic framework, construction method thereof and CO catalysis 2 Application of coupling with epoxide to prepare cyclic carbonate | |
CN105348071A (en) | Preparation method of discrete metal-organic nanotube constructed based on tetraphenyl ethylene derivative and application thereof | |
CN112592361A (en) | Fluoroboropyrrole functionalized metal organic framework material and preparation method and application thereof | |
CN114289036B (en) | Sulfide photocatalyst containing rare earth elements and preparation method and application thereof | |
Li et al. | Bifunctionalized polyacrylonitrile fibers as highly efficient and selective heterogeneous catalysts for cycloaddition of CO2 with epichlorohydrin under mild conditions | |
CN111889141A (en) | Ionic liquid functionalized bipyridine porous polymer catalyst for catalyzing cycloaddition reaction of carbon dioxide and epoxide | |
CN103566970B (en) | Chromium, zinc or copper complexed conjugated microporous polymer catalysts, as well as preparation method and application thereof | |
CN114276322A (en) | Method for preparing cyclic carbonate by photo-initiated polymerization of ionic liquid material | |
CN117654574A (en) | Preparation method and application of carbon-supported CeNCl catalyst | |
CN111171331B (en) | Porphyrin-anthryl covalent organic framework material and preparation method and application thereof | |
CN114917955B (en) | Nitrogen-containing MOFs material and application thereof in catalysis of low-concentration CO 2 Application in cycloaddition reaction | |
CN113480723B (en) | Complex catalyst for synthesizing polycarbonate-based degradable plastic and application thereof | |
CN114308126B (en) | K (K)4Nb6O17Micron flower/Co-TCPP MOF hydrogen evolution catalyst and preparation method and application thereof | |
CN111793218B (en) | Preparation method and application of Schiff base dicarboxylic acid ligand Zn and Cu metal organic framework material | |
CN107586382B (en) | Zinc catalyst for preparing poly (trimethylene carbonate) | |
CN109929118B (en) | Cu (I) coordination polymer and preparation method and application thereof |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |