CN107954973A - 一种锌基催化剂制备环状碳酸酯的方法 - Google Patents
一种锌基催化剂制备环状碳酸酯的方法 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 67
- 150000005676 cyclic carbonates Chemical class 0.000 title claims abstract description 46
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 39
- 239000011701 zinc Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 29
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 40
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 25
- 229920001577 copolymer Polymers 0.000 claims abstract description 21
- 239000003426 co-catalyst Substances 0.000 claims abstract description 17
- 150000003233 pyrroles Chemical class 0.000 claims abstract description 15
- 150000002118 epoxides Chemical class 0.000 claims abstract description 11
- 239000002638 heterogeneous catalyst Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 230000021615 conjugation Effects 0.000 claims description 21
- YIYFFLYGSHJWFF-UHFFFAOYSA-N [Zn].N1C(C=C2N=C(C=C3NC(=C4)C=C3)C=C2)=CC=C1C=C1C=CC4=N1 Chemical compound [Zn].N1C(C=C2N=C(C=C3NC(=C4)C=C3)C=C2)=CC=C1C=C1C=CC4=N1 YIYFFLYGSHJWFF-UHFFFAOYSA-N 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 4
- GTZCNONABJSHNM-UHFFFAOYSA-N 5,10,15,20-tetraphenyl-21,23-dihydroporphyrin zinc Chemical compound [Zn].c1cc2nc1c(-c1ccccc1)c1ccc([nH]1)c(-c1ccccc1)c1ccc(n1)c(-c1ccccc1)c1ccc([nH]1)c2-c1ccccc1 GTZCNONABJSHNM-UHFFFAOYSA-N 0.000 claims description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 4
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- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 claims description 4
- FUTVBRXUIKZACV-UHFFFAOYSA-J zinc;3-[18-(2-carboxylatoethyl)-8,13-bis(ethenyl)-3,7,12,17-tetramethylporphyrin-21,24-diid-2-yl]propanoate Chemical compound [Zn+2].[N-]1C2=C(C)C(CCC([O-])=O)=C1C=C([N-]1)C(CCC([O-])=O)=C(C)C1=CC(C(C)=C1C=C)=NC1=CC(C(C)=C1C=C)=NC1=C2 FUTVBRXUIKZACV-UHFFFAOYSA-J 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- FQYUMYWMJTYZTK-UHFFFAOYSA-N Phenyl glycidyl ether Chemical compound C1OC1COC1=CC=CC=C1 FQYUMYWMJTYZTK-UHFFFAOYSA-N 0.000 claims description 3
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium chloride Substances Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 3
- 238000006555 catalytic reaction Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- RBACIKXCRWGCBB-UHFFFAOYSA-N 1,2-Epoxybutane Chemical compound CCC1CO1 RBACIKXCRWGCBB-UHFFFAOYSA-N 0.000 claims description 2
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 claims description 2
- GKIPXFAANLTWBM-UHFFFAOYSA-N epibromohydrin Chemical compound BrCC1CO1 GKIPXFAANLTWBM-UHFFFAOYSA-N 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cyclohexene Chemical compound C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 claims 2
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- 238000006735 epoxidation reaction Methods 0.000 claims 1
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- 238000006243 chemical reaction Methods 0.000 abstract description 9
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- JRMUNVKIHCOMHV-UHFFFAOYSA-M tetrabutylammonium bromide Chemical compound [Br-].CCCC[N+](CCCC)(CCCC)CCCC JRMUNVKIHCOMHV-UHFFFAOYSA-M 0.000 abstract description 3
- 238000009776 industrial production Methods 0.000 abstract description 2
- -1 cyclic carbonate ester Chemical class 0.000 abstract 1
- 238000000926 separation method Methods 0.000 description 15
- 238000001816 cooling Methods 0.000 description 14
- 238000000746 purification Methods 0.000 description 14
- 229910001220 stainless steel Inorganic materials 0.000 description 14
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- 238000003756 stirring Methods 0.000 description 14
- DZLFLBLQUQXARW-UHFFFAOYSA-N tetrabutylammonium Chemical compound CCCC[N+](CCCC)(CCCC)CCCC DZLFLBLQUQXARW-UHFFFAOYSA-N 0.000 description 12
- 239000004593 Epoxy Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- ZWAJLVLEBYIOTI-UHFFFAOYSA-N cyclohexene oxide Chemical compound C1CCCC2OC21 ZWAJLVLEBYIOTI-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000005677 organic carbonates Chemical class 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- CYNYIHKIEHGYOZ-UHFFFAOYSA-N 1-bromopropane Chemical class CCCBr CYNYIHKIEHGYOZ-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 150000001649 bromium compounds Chemical class 0.000 description 2
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- 238000007599 discharging Methods 0.000 description 2
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- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VEUMANXWQDHAJV-UHFFFAOYSA-N 2-[2-[(2-hydroxyphenyl)methylideneamino]ethyliminomethyl]phenol Chemical compound OC1=CC=CC=C1C=NCCN=CC1=CC=CC=C1O VEUMANXWQDHAJV-UHFFFAOYSA-N 0.000 description 1
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UEXCJVNBTNXOEH-UHFFFAOYSA-N Ethynylbenzene Chemical class C#CC1=CC=CC=C1 UEXCJVNBTNXOEH-UHFFFAOYSA-N 0.000 description 1
- CTKINSOISVBQLD-UHFFFAOYSA-N Glycidol Chemical compound OCC1CO1 CTKINSOISVBQLD-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 238000003477 Sonogashira cross-coupling reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000004696 coordination complex Chemical class 0.000 description 1
- FWFSEYBSWVRWGL-UHFFFAOYSA-N cyclohexene oxide Natural products O=C1CCCC=C1 FWFSEYBSWVRWGL-UHFFFAOYSA-N 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
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- 239000002816 fuel additive Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 229910052740 iodine Inorganic materials 0.000 description 1
- 239000011630 iodine Substances 0.000 description 1
- 239000002608 ionic liquid Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 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
- 239000003960 organic solvent Substances 0.000 description 1
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- 229920001223 polyethylene glycol Polymers 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
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- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/32—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D317/34—Oxygen atoms
- C07D317/36—Alkylene carbonates; Substituted alkylene carbonates
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/0234—Nitrogen-, phosphorus-, arsenic- or antimony-containing compounds
- B01J31/0235—Nitrogen containing compounds
- B01J31/0239—Quaternary ammonium compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
- B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
- B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
- B01J31/1825—Ligands comprising condensed ring systems, e.g. acridine, carbazole
- B01J31/183—Ligands comprising condensed ring systems, e.g. acridine, carbazole with more than one complexing nitrogen atom, e.g. phenanthroline
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- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
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- C07D317/44—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D317/46—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
- C07D317/48—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
- C07D317/62—Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring
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- B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
- B01J2531/0241—Rigid ligands, e.g. extended sp2-carbon frameworks or geminal di- or trisubstitution
- B01J2531/025—Ligands with a porphyrin ring system or analogues thereof, e.g. phthalocyanines, corroles
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Abstract
本发明公开了一种锌基催化剂制备环状碳酸酯的方法,利用二氧化碳和环氧化物作为原料,以共轭锌卟啉联吡啶/联吡咯微孔聚合物材料为多相催化剂,四正丁基溴化铵为助催化剂,在常温常压无溶剂下,实现了高效绿色催化合成环状碳酸酯。该方法的主要优点是催化剂制备方法简单,成本低,催化活性高,结构性能稳定,易回收,可重复利用;反应条件温和、速率快及操作安全,适用于大规模工业化生产。
Description
技术领域
本发明属于有机合成技术领域,具体涉及一种锌基催化剂制备环状碳酸酯的方法。
背景技术
随着社会的发展人类文明的进步,尤其是工业的日新月异的大发展,对于化石能源的消耗需求日益增大。随着化石燃料的大量使用,二氧化碳的浓度快速升高,成为一种主要温室气体,引起一系列环境和生态问题。同时,二氧化碳作为一种分布广泛、储量丰富、廉价易得、可再生、无毒、不可燃的理想碳一资源。无论从环境保护还是可再生资源利用的角度考虑,二氧化碳的捕获和化学转化方面的研究都具有重要意义。以二氧化碳为原料合成有机碳酸酯就是其资源化利用的一个典型例子,目前已经实现了工业化生产。
有机碳酸酯是一类具有高沸点、低蒸汽压、低毒等特性的绿色化学品,广泛用于有机溶剂、洗涤剂、锂电池电解液、燃料添加剂等多个领域。有机碳酸酯可以分为链状碳酸酯和环状碳酸酯。其中环状碳酸酯广泛用作锂电池的电解液,随着新能源的快速发展,市场对于高品质环状碳酸酯的需求量越来越大。
从绿色化学和可持续发展的角度来讲,以二氧化碳和环氧化物为原料合成碳酸酯提供了一种安全、清洁、可持续、高原子经济性的新途径。目前已经工业化的二氧化碳和环氧制备环状碳酸酯的过程主要有两种催化体系:聚乙二醇/碘化钾体系和季铵盐体系。前者在反应过程中会生成单质碘,造成成品发黄,产品质量下降;而后者在反应过程中需要的压力较高,对生产操作的安全性,设备耐压性能的要求较高,设备成本高。
目前,在以CO2和环状碳酸酯为原料,合成环状碳酸酯的反应体系中,已经开发出一系列催化剂,如季铵盐、季鏻盐、有机碱、离子液体、金属氧化物、金属配合物、功能性有机聚合材料和金属卟啉等。2013年,Deng et al.的研究小组以salen Al/Co和三乙炔苯为单体,通过Sonogashira偶联反应,制备了微孔聚合物催化剂Al-CMP和Co-CMP,在该反应体系中取得了较好的催化效果,并且在常温常压条件下就可取的不错的产率,同时催化剂还可循环回收利用[Nat.Commun.,2013,4,1-7]。2016年,肖丰收教授课题组以四乙烯基钴卟啉为单体,通过自由基聚合的方法,制得催化剂Co/POP-TPP,在29℃,压力为0.1MPa时,反应24h,取得了满意的结果,催化剂能够循环回收使用,并且将低浓度CO2作为研究对象,具有一定的工业应用价值[J.Catal.,2016,338,202]。
发明内容
本发明所要解决的技术问题是针对目前该反应体系存在温和条件下效率不高的问题,提供一种合成步骤简单、原料廉价易得、催化效率高、稳定易回收的多相催化剂,在常温常压、无溶剂条件下,高效催化转化为环状碳酸酯,可以广泛应用于工业生产领域。
为解决上述技术问题,本发明采用以下技术方案:
一种锌基催化剂制备环状碳酸酯的方法,以二氧化碳和环氧化物作为原料,以共轭锌卟啉联吡啶/共轭锌卟啉联吡咯微孔聚合物材料为多相催化剂,四正丁基溴化铵为助催化剂,在常温常压无溶剂下,反应12-48h,高收率地合成了环状碳酸酯,多相催化剂分离简单,可洗涤回收,且能够实现多次重复使用(20次以上)。
所述共轭锌卟啉联吡啶微孔聚合物材料采用 Scholl 偶联反应,以锌四苯基卟啉及2,2-联吡啶为单体,使用低成本的无水AlCl3催化剂制备得到,其结构式如下:
。
所述共轭锌卟啉联吡咯微孔聚合物材料采用 Scholl 偶联反应,以锌四苯基卟啉和吡咯为单体,使用无水AlCl3催化剂制备得到,其结构式如下:
。
所述环氧化合物为环氧丙烷、环氧丁烷、环氧氯丙烷、环氧溴丙烷、氧化苯乙烯、苯基缩水甘油醚或氧化环己烯。
所述多相催化剂活性组分的用量为环氧化合物用量的0.2~0.5mol%。
所述助催化剂的用量为环氧化物的3.6~7.2mol%。
本发明的有益效果是:1)本发明利用共轭锌卟啉联吡啶/共轭锌卟啉联吡咯微孔聚合物材料和四正丁基溴化铵作为双组份催化剂,实现了常温常压条件下,高效催化CO2和环氧化物合成环状碳酸酯,节省了大量能源,降低了对生产中压力设备的要求,大大提高了操作的安全性;2)催化剂用量低、催化效率高、反应时间短、产物易于分离纯化,便于实际工业操作;3)不需要添加任何有机溶剂,绿色环保;4)所使用的催化剂原料易得、成本低、合成快速简单。
具体实施方式
本发明在以下实施例中作进一步的说明,但这些实施例仅为示例说明之用,不应被解释为本发明的实施限制。
实施例1
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.45mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol环氧丙烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为88%。
实施例2
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.3mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol环氧丁烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为86%。
实施例3
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.5mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol环氧氯丙烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为90%。
实施例4
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.4mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol环氧溴丙烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为87%。
实施例5
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.3mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol氧化苯乙烯和0.675mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌24h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为80%。
实施例6
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.2mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol苯基缩水甘油醚和0.45mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌12h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为78%。
实施例7
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.2mol%)的催化剂共轭锌卟啉联吡啶微孔聚合物材料,12.5mmol氧化环己烯和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为81%。
实施例8
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.45mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol环氧丙烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为90%。
实施例9
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.3mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol环氧丁烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为86%。
实施例10
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.5mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol环氧氯丙烷和0.675mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌36h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为90%。
实施例11
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.4mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol环氧溴丙烷和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为88%。
实施例12
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.2mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol氧化苯乙烯和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌48h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为84%。
实施例13
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.2mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol苯基缩水甘油醚和0.45mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌24h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为80%。
实施例14
本实施例的锌基催化剂制备环状碳酸酯的方法,步骤如下:
向10mL的不锈钢高压反应釜中,依次加入50mg(活性组分锌0.5mol%)的催化剂共轭锌卟啉联吡咯微孔聚合物材料,12.5mmol氧化环己烯和0.9mmol助催化剂四正丁基溴化铵,通入二氧化碳并保持压力为0.1MPa,在温度为25℃条件下,搅拌12h后,室温冷却,缓慢释放剩余的二氧化碳后,过滤分离出催化剂,纯化后得环状碳酸酯的分离产率为86%。
上述实施例中活性组分的含量以环氧化合物的用量为基准。
Claims (6)
1.一种锌基催化剂制备环状碳酸酯的方法,其特征在于利用二氧化碳和环氧化物作为原料,以共轭锌卟啉联吡啶/共轭锌卟啉联吡咯微孔聚合物材料为多相催化剂,四正丁基溴化铵为助催化剂,在常温常压无溶剂下,反应12-48h,实现了高效绿色催化二氧化碳合成环状碳酸酯。
2.根据权利要求1所述的锌基催化剂制备环状碳酸酯的方法,其特征在于:所述共轭锌卟啉联吡啶微孔聚合物材料采用 Scholl 偶联反应,以锌四苯基卟啉和2,2-联吡啶为单体,使用无水AlCl3催化剂制备得到,其结构式如下:
。
3.根据权利要求1所述的锌基催化剂制备环状碳酸酯的方法,其特征在于:所述共轭锌卟啉联吡咯微孔聚合物材料采用 Scholl 偶联反应,以锌四苯基卟啉和吡咯为单体,使用无水AlCl3催化剂制备得到,其结构式如下:
。
4.根据权利要求1所述的锌基催化剂制备环状碳酸酯的方法,其特征在于:所述环氧化合物为环氧丙烷、环氧丁烷、环氧氯丙烷、环氧溴丙烷、氧化苯乙烯、苯基缩水甘油醚或氧化环己烯。
5.根据权利要求1所述的锌基催化剂制备环状碳酸酯的方法,其特征在于:所述多相催化剂活性组分的用量为环氧化合物用量的0.2~0.5mol%。
6.根据权利要求1所述的锌基催化剂制备环状碳酸酯的方法,其特征在于:所述助催化剂的用量为环氧化物的3.6~7.2mol%。
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