CN108654694A - 一种附载Fe配合物的碳纳米管及其应用 - Google Patents
一种附载Fe配合物的碳纳米管及其应用 Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 47
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 47
- 238000006243 chemical reaction Methods 0.000 claims abstract description 67
- 239000003054 catalyst Substances 0.000 claims abstract description 51
- 239000002994 raw material Substances 0.000 claims abstract description 17
- 150000004982 aromatic amines Chemical class 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 51
- WSLDOOZREJYCGB-UHFFFAOYSA-N 1,2-Dichloroethane Chemical class ClCCCl WSLDOOZREJYCGB-UHFFFAOYSA-N 0.000 claims description 22
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 20
- IAQRGUVFOMOMEM-ONEGZZNKSA-N trans-but-2-ene Chemical compound C\C=C\C IAQRGUVFOMOMEM-ONEGZZNKSA-N 0.000 claims description 20
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 16
- -1 methoxyl group Chemical group 0.000 claims description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical group CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 10
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 9
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 8
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 8
- 235000019441 ethanol Nutrition 0.000 claims description 8
- GEYOCULIXLDCMW-UHFFFAOYSA-N 1,2-phenylenediamine Chemical compound NC1=CC=CC=C1N GEYOCULIXLDCMW-UHFFFAOYSA-N 0.000 claims description 6
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 2
- 239000012065 filter cake Substances 0.000 claims description 2
- 150000002505 iron Chemical class 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 claims description 2
- 239000007858 starting material Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 238000001291 vacuum drying Methods 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims 10
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 6
- 125000001424 substituent group Chemical group 0.000 claims 4
- 150000004985 diamines Chemical class 0.000 claims 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims 2
- 239000003570 air Substances 0.000 claims 2
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims 2
- 229910052794 bromium Inorganic materials 0.000 claims 2
- 239000000460 chlorine Substances 0.000 claims 2
- 229910052801 chlorine Inorganic materials 0.000 claims 2
- 229910052731 fluorine Inorganic materials 0.000 claims 2
- 239000011737 fluorine Substances 0.000 claims 2
- 150000002790 naphthalenes Chemical class 0.000 claims 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims 2
- SSJXIUAHEKJCMH-OLQVQODUSA-N (1s,2r)-cyclohexane-1,2-diamine Chemical compound N[C@H]1CCCC[C@H]1N SSJXIUAHEKJCMH-OLQVQODUSA-N 0.000 claims 1
- 229910052786 argon Inorganic materials 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000003786 synthesis reaction Methods 0.000 abstract description 7
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
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- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000004224 protection Effects 0.000 abstract description 2
- PKQIDSVLSKFZQC-UHFFFAOYSA-N 3-oxobutanal Chemical class CC(=O)CC=O PKQIDSVLSKFZQC-UHFFFAOYSA-N 0.000 abstract 1
- 125000001769 aryl amino group Chemical group 0.000 abstract 1
- 239000003814 drug Substances 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 54
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 44
- 239000000047 product Substances 0.000 description 39
- 239000003921 oil Substances 0.000 description 21
- 239000007787 solid Substances 0.000 description 19
- 239000000706 filtrate Substances 0.000 description 18
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- 238000000926 separation method Methods 0.000 description 18
- 238000010898 silica gel chromatography Methods 0.000 description 18
- 239000003480 eluent Substances 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 238000001914 filtration Methods 0.000 description 16
- 238000005481 NMR spectroscopy Methods 0.000 description 13
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 12
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 10
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 8
- 229910015900 BF3 Inorganic materials 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002841 Lewis acid Substances 0.000 description 4
- YRKCREAYFQTBPV-UHFFFAOYSA-N acetylacetone Chemical compound CC(=O)CC(C)=O YRKCREAYFQTBPV-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000011968 lewis acid catalyst Substances 0.000 description 4
- 150000007517 lewis acids Chemical class 0.000 description 4
- 0 *C(C=C(N*)[Re])=O Chemical compound *C(C=C(N*)[Re])=O 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- AKCRQHGQIJBRMN-UHFFFAOYSA-N 2-chloroaniline Chemical compound NC1=CC=CC=C1Cl AKCRQHGQIJBRMN-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229940124350 antibacterial drug Drugs 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000003446 ligand Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- KFUSEUYYWQURPO-UHFFFAOYSA-N 1,2-dichloroethene Chemical class ClC=CCl KFUSEUYYWQURPO-UHFFFAOYSA-N 0.000 description 1
- VEAFKIYNHVBNIP-UHFFFAOYSA-N 1,3-Diphenylpropane Chemical compound C=1C=CC=CC=1CCCC1=CC=CC=C1 VEAFKIYNHVBNIP-UHFFFAOYSA-N 0.000 description 1
- 150000005004 2-naphthylamines Chemical class 0.000 description 1
- PNPCRKVUWYDDST-UHFFFAOYSA-N 3-chloroaniline Chemical compound NC1=CC=CC(Cl)=C1 PNPCRKVUWYDDST-UHFFFAOYSA-N 0.000 description 1
- WDFQBORIUYODSI-UHFFFAOYSA-N 4-bromoaniline Chemical compound NC1=CC=C(Br)C=C1 WDFQBORIUYODSI-UHFFFAOYSA-N 0.000 description 1
- KRZCOLNOCZKSDF-UHFFFAOYSA-N 4-fluoroaniline Chemical compound NC1=CC=C(F)C=C1 KRZCOLNOCZKSDF-UHFFFAOYSA-N 0.000 description 1
- ODGIMMLDVSWADK-UHFFFAOYSA-N 4-trifluoromethylaniline Chemical compound NC1=CC=C(C(F)(F)F)C=C1 ODGIMMLDVSWADK-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- FBLQBJUCYNOZRH-SEYXRHQNSA-N C/C(/Nc1ccccc1)=C/C(c1ccccc1)=O Chemical compound C/C(/Nc1ccccc1)=C/C(c1ccccc1)=O FBLQBJUCYNOZRH-SEYXRHQNSA-N 0.000 description 1
- CVBUKMMMRLOKQR-UHFFFAOYSA-N CC(CC(c1ccccc1)=O)=O Chemical compound CC(CC(c1ccccc1)=O)=O CVBUKMMMRLOKQR-UHFFFAOYSA-N 0.000 description 1
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940121363 anti-inflammatory agent Drugs 0.000 description 1
- 239000002260 anti-inflammatory agent Substances 0.000 description 1
- 230000000118 anti-neoplastic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- JXLHNMVSKXFWAO-UHFFFAOYSA-N azane;7-fluoro-2,1,3-benzoxadiazole-4-sulfonic acid Chemical compound N.OS(=O)(=O)C1=CC=C(F)C2=NON=C12 JXLHNMVSKXFWAO-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001914 chlorine tetroxide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 150000004699 copper complex Chemical class 0.000 description 1
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- YHBDIEWMOMLKOO-UHFFFAOYSA-I pentachloroniobium Chemical compound Cl[Nb](Cl)(Cl)(Cl)Cl YHBDIEWMOMLKOO-UHFFFAOYSA-I 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Chemical compound [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/10—Heat treatment in the presence of water, e.g. steam
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C221/00—Preparation of compounds containing amino groups and doubly-bound oxygen atoms bound to the same carbon skeleton
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0213—Complexes without C-metal linkages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- 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
- B01J2531/0258—Flexible ligands, e.g. mainly sp3-carbon framework as exemplified by the "tedicyp" ligand, i.e. cis-cis-cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/842—Iron
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Abstract
本发明公开了一种附载Fe配合物的碳纳米管催化剂,以1,3‑丁二酮衍生物为原料,利用该催化剂,在加热条件下与芳基胺缩合生成3‑(芳氨基)丁‑2‑烯‑1‑酮衍生物。该方法原料便宜易得,制备的催化剂可重复使用、经济环保,目标产物收率高,反应可扩大到克级规模,并且产物可以作为药物合成前体。
Description
技术领域
本发明涉及一种附载Fe配合物的碳纳米管催化剂的制备及其催化合成3-(芳氨基)丁-2-烯-1-酮衍生物的方法。将FeCl3·6H2O与乙二胺反应得到Fe配合物,再将该配合物经水热合成附载于碳纳米管上得到一种新型的附载Fe配合物的碳纳米管催化剂。之后以1,3-丁二酮衍生物为起始原料,利用附载Fe配合物的碳纳米管作催化剂,在加热条件下与芳基胺缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物。
与已报道的3-(芳氨基)丁-2-烯-1-酮衍生物合成方法相比较,本发明利用新颖的、易于制备的附载Fe配合物的碳纳米管作催化剂,原料易得、操作简便、合成反应条件温和、效率高,收率在70%-95%,且产物具有很好的立体选择性及官能团多样性。本发明制备的催化剂相比于其他路易斯酸催化剂(三氟化硼乙醚、FeCl3等)优势在于可重复利用,其在重复使用三次后产物分离收率与第一次相比只降低5%左右。
背景技术
路易斯酸具有很好的催化活性,常见的路易斯酸催化剂有氯化铝、氯化铁、三氟化硼、五氯化铌以及镧系元素的三氟甲磺酸盐等,其已被广泛应用于有机合成当中,人们越来越重视该类型催化剂的的研究和开发。但路易斯酸催化剂有时易溶于反应体系成为均相催化而难以与产物分离,且部分路易斯酸本身易水解而造成不稳定性。因此,为克服这些缺点,将路易斯酸附载于某些固相材料以实现非均相催化及重复利用成为一个重要的研究方向。
碳纳米管作为一种一维的纳米材料,它具有质量轻、比表面积较大(一般在200m2/g)和表面活性高等优良的物理化学性能。因此,碳纳米管可以作为一种良好的吸附材料应用于环境保护等领域。例如,将微碳纳米管与席夫碱复合后,可吸附废水中痕量的金属离子(J.Hazard.Mater.2012,210-220:103);碳纳米管与石墨烯复合气凝胶材料是一类高性能油水分离材料,可充分利用这类功能材料的超轻、大孔隙以及良好的压缩性等特点,使其展示出优异的油类吸附与回收性能(Adv.Mater.2013,25,2219)。
烯胺酮类衍生物是一种重要的药物合成前体,可用于合成抗菌药(J.Am.Chem.Soc.1982,104,6465)、抗肿瘤药(J.Am.Chem.Soc.1989,111,6461)以及抗炎药(Tetrahedron.2001,57,9635)。1961年,Martin小组通过二酮类化合物与芳基胺在芳香族溶剂中回流生成烯胺酮类化合物(J.Am.Chem.Soc.1961,83,73),这也是合成烯胺酮的主要途径。近年来,该反应得到了更加深入的研究,主要着眼于改善反应条件,比如使用NaAuCl4、Zn(ClO4)2·6H2O等金属盐作为催化剂(Green Chem.2003,64;Synlett.2004,2,239)。但都存在一个或多个缺点,例如材料昂贵、使用毒性溶剂、反应条件苛刻或收率不理想。
本发明利用一种附载Fe配合物的碳纳米管作催化剂,1,3-丁二酮衍生物2为起始原料,在加热条件下与芳基胺缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物1。
发明内容
本发明的目的在于制备一种附载Fe配合物的碳纳米管催化剂,以1,3-丁二酮衍生物2为原料,利用该催化剂,在加热条件下与芳基胺缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物1。
为了实现上述目的,本发明的技术方案如下:
将FeCl3·6H2O与二胺类化合物反应生成相应Fe配合物,并经水热合成附载于碳纳米管上。然后在空气氛围下,以1,3-丁二酮衍生物2为原料,利用该催化剂,在有机溶剂中和加热条件下与芳基胺缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物1(反应式1)。
技术方案特征在于:
1.与FeCl3·6H2O形成配合物的二胺类化合物,其可以是邻苯二胺、顺式-1,2-环己二胺、乙二胺、1,2-丙二胺,最好是邻苯二胺或1,2-丙二胺。
2.以附载Fe配合物的碳纳米管作催化剂,原料1,3-丁二酮衍生物2与该催化剂含铁量的摩尔比为1:0.05-1:0.15,最优摩尔比为1:0.06-1:0.10。
3.反应溶剂为N,N-二甲基甲酰胺(DMF)、乙醇、四氢呋喃(THF)、甲苯、1,2-二氯乙烷(DCE)、1,4-二氧六环中的一种或两种的混合物;其中在1,2-二氯乙烷(DCE)中效果最好。
4原料1,3-丁二酮衍生物2于反应溶剂中的优选摩尔浓度为0.05-0.2M;芳基胺3于反应溶剂中的优选摩尔浓度为0.1-0.4M。
5.反应时间为8-32小时。其中,最佳反应时间为9-21小时。
6.反应温度为40-120℃。其中,最佳反应温度是70-110℃。
本发明具有以下优点:
1)采用相对便宜易得的原材料合成3-(芳氨基)丁-2-烯-1-酮衍生物1。FeCl3·6H2O、1,3-丁二酮衍生物2以及反应溶剂1,2-二氯乙烷(DCE)成本相对低廉。
2)附载Fe配合物的碳纳米管催化剂制备方法比较简单,且其可回收并重复使用,相比普通的路易斯酸催化剂更加经济环保。
3)利用附载Fe配合物的碳纳米管催化剂,其在催化合成3-(芳氨基)丁-2-烯-1-酮衍生物1的反应可扩大到克级规模,具有实际生产意义。
4)3-(芳氨基)丁-2-烯-1-酮衍生物1合成反应条件温和、产物收率高,最高可达到95%。
5)3-(芳氨基)丁-2-烯-1-酮衍生物1产物有好的立体选择性,及官能团多样性,具有广泛的应用性。
6)3-(芳氨基)丁-2-烯-1-酮衍生物1是一种重要的药物合成前体,此结构反应活性位点较多,可进一步用于合成抗菌药等。
总之,本发明制备了一种附载Fe配合物的碳纳米管催化剂,以1,3-丁二酮衍生物2为原料,利用该催化剂,在加热条件下与芳基胺缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物1,原料便宜易得,制备的催化剂可重复使用、经济环保,目标产物收率高,反应可扩大到克级规模,并且产物可以作为药物合成前体。
具体实施方式
通过下述实施例有助于进一步理解本发明,但本发明的内容并不仅限于此。
附载Fe配合物的碳纳米管催化剂的合成过程:
1)Fe配合物的制备:
称取0.4-0.8g FeCl3·6H2O,然后加入10-20mL乙醇于50mL的圆底烧瓶,采用恒压滴液漏斗滴加0.2-0.5mL的二胺类化合物,80℃油浴搅拌1-2h。反应结束后,冷却至室温,抽滤,乙醇洗涤滤饼,真空干燥;
2)Fe配合物附载于碳纳米管:
称取1-2g碳纳米管、0.2-0.6g铁配合物于50mL的圆底烧瓶中,加入10-20mL乙醇,室温下搅拌1-5h后转移至密封的水热合成釜,置于100-150℃烘箱烘1-2天,再降温至50-70℃烘12-20小时。最后置于马弗炉以180-250℃烘1-2小时,即可得到附载Fe配合物的碳纳米管催化剂。
实施例1
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及苯胺3a(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1a(334mg,收率70%)。目标产物通过核磁共振谱测定得到确认。
实施例2
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对甲苯胺3b(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1b(479mg,收率95%)。目标产物通过核磁共振谱测定得到确认。
实施例3
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对甲氧基苯胺3c(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1c(451mg,收率84%)。目标产物通过核磁共振谱测定得到确认。
实施例4
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对氟苯胺3d(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应24小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到白色固体目标产物1d(375mg,收率73%)。目标产物通过核磁共振谱测定得到确认。
实施例5
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对氯苯胺3e(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应24小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1e(409mg,收率75%)。目标产物通过核磁共振谱测定得到确认。
实施例6
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对溴苯胺3f(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应24小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1f(501mg,收率79%)。目标产物通过核磁共振谱测定得到确认。
实施例7
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及邻氯苯胺3g(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应32小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1g(270mg,收率50%)。目标产物通过核磁共振谱测定得到确认。
实施例8
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及间氯苯胺3h(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应32小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1h(291mg,收率54%)。目标产物通过核磁共振谱测定得到确认。
实施例9
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对三氟甲基苯胺3i(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应28小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到白色固体目标产物1i(340mg,收率56%)。目标产物通过核磁共振谱测定得到确认。
实施例10
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及间甲苯胺3j(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应26小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1j(442mg,收率88%)。目标产物通过核磁共振谱测定得到确认。
实施例11
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及邻甲苯胺3k(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应26小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1k(430mg,收率86%)。目标产物通过核磁共振谱测定得到确认。
实施例12
依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及2-萘胺3l(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应26小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1l(450mg,收率78%)。目标产物通过核磁共振谱测定得到确认。
实施例13
依次称取1,3-二苯基丙烷-1,3-二酮2b(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及苯胺3a(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应32小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1m(282mg,收率47%)。目标产物通过核磁共振谱测定得到确认。
实施例14
称取附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL、乙酰丙酮2c(2mmol)及苯胺3a(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色油状目标产物1l(296mg,收率85%)。目标产物通过核磁共振谱测定得到确认。
实施例15
克级规模实验:依次称取1-苯基-1,3-丁二酮2a(8mmol)及附载Fe配合物的碳纳米管催化剂(600mg)于100mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷40mL及对甲苯胺3b(16mmol),在室温下搅拌2分钟,放入80℃的油浴中反应2天。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1b(1.66g,收率83%)。
实施例16
重复利用实验:依次称取1-苯基-1,3-丁二酮2a(2mmol)及附载Fe配合物的碳纳米管催化剂(150mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及对甲氧基苯胺3c(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,经滤膜过滤收集碳纳米管催化剂,再通过这个反应重复使用两次该催化剂。最后经过滤收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1c(427mg,收率80%)。
实施例17
与常用路易斯酸FeCl3及三氟化硼乙醚进行对比。依次称取1-苯基-1,3-丁二酮2a(2mmol)及FeCl3(13.6mg)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL及苯胺3a(4mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1a(322mg,收率68%);称取1-苯基-1,3-丁二酮2a(2mmol)于50mL Schlenk反应瓶中,在空气下,加入1,2-二氯乙烷20mL、苯胺3a(4mmol)及三氟化硼乙醚(0.2mmol),在室温下搅拌2分钟,放入80℃的油浴中反应12小时。反应结束后,将混合物冷却至室温,硅藻土过滤,收集滤液并减压下除去挥发组份,然后用硅胶柱层析分离(洗脱液为石油醚(60-90℃)/乙酸乙酯,v/v=20:1),得到黄色固体目标产物1a(308mg,收率65%);与实施例1相比,FeCl3及三氟化硼乙醚催化效果与该附载Fe配合物的碳纳米管催化剂相当,但因无法分离而不能实现重复利用。
实施例18
附载不同Fe配合物的碳纳米管及附载铜配合物的碳纳米管的催化效果对比。如反应式(2),该反应可分别采用附载FeCl3·6H2O与邻苯二胺的配合物(150mg)、FeCl3·6H2O与1,2-丙二胺的配合物(150mg)作催化剂。实验步骤与实施例1相同,邻苯二胺作配体时收率为63%,1,2-丙二胺作配体时收率为66%。此外,如反应式(19),改用附载CuCl2与1,2-丙二胺的配合物的碳纳米管(150mg)作催化剂,实验步骤与实施例1相同,则反应收率降至30%。
典型化合物表征数据
1-苯基-3-(芳氨基)丁-2-烯-1-酮衍生物(1a),黄色固体,1H NMR(400MHz,CDCl3)δ13.16(s,1H),8.03–7.93(m,2H),7.50–7.40(m,3H),7.17(d,J=8.2Hz,2H),7.07(d,J=8.3Hz,2H),5.92(s,1H),2.36(s,3H),2.11(s,3H).13C NMR(100MHz,CDCl3)δ188.39,162.63,140.15,136.00,135.66,130.89,129.81,128.33,127.11,124.74,93.99,20.99,20.38.
1-苯基-3-(芳氨基)丁-2-烯-1-酮衍生物(1c),黄色固体,1H NMR(400MHz,CDCl3)δ12.86(s,1H),7.86–7.76(m,2H),7.36–7.24(m,3H),7.02–6.91(m,2H),6.80–6.70(m,2H),5.75(s,1H),3.66(s,3H),1.93(s,3H).13C NMR(100MHz,CDCl3)δ188.33,163.19,157.84,140.15,131.40,130.82,128.30,127.06,126.55,114.35,93.58,55.46,20.26.。
Claims (10)
1.一种附载Fe配合物的碳纳米管催化剂,其特征在于,由如下方法制成:
(1)Fe配合物的制备:
称取0.4-0.8g FeCl3·6H2O,然后加入10-20mL乙醇于容器内,滴加0.2-0.5mL的二胺类化合物,80℃搅拌1-2h;反应结束后,冷却至室温,抽滤,乙醇洗涤滤饼,真空干燥,得Fe配合物;
(2)Fe配合物附载于碳纳米管:
称取1-2g碳纳米管、0.2-0.6g铁配合物于容器中,加入10-20mL乙醇,室温下搅拌1-5h后转移至密闭的水热合成釜,置于100-150℃烘箱烘1-2天,再降温至50-70℃烘12-20小时;最后置于马弗炉以180-250℃烘1-2小时,即可得到附载Fe配合物的碳纳米管催化剂。
2.一种权利要求1所述的附载Fe配合物的碳纳米管催化剂的应用,其特征在于,利用权利要求1所述的附载Fe配合物的碳纳米管催化剂催化合成3-(芳氨基)丁-2-烯-1-酮衍生物1,其分子结构如下:
R1为苯环或者甲基;R2为甲基、乙氧基或者苯基;R3选自以下基团:苯环、萘环或者具有取代基的苯环,苯环上带有的取代基为甲基、甲氧基、氟、氯、溴、三氟甲基、硝基、氰基、羧基中的1-5种,苯环上取代基的个数为1-5个。
3.根据权利要求2所述的应用,其特征在于:以1,3-丁二酮衍生物2为起始原料,附载Fe配合物的碳纳米管作催化剂,在加热条件下与芳基胺3缩合生成3-(芳氨基)丁-2-烯-1-酮衍生物1;
合成路线如下述反应式所示,
R1为苯环或者甲基;R2为甲基、乙氧基或者苯基;R3选自以下基团:苯环、萘环或者具有取代基的苯环,苯环上带有的取代基为甲基、甲氧基、氟、氯、溴、三氟甲基、硝基、氰基、羧基中的1-5种,苯环上取代基的个数为1-5个。
4.按照权利要求3所述的应用,其特征在于:
与FeCl3·6H2O形成配合物的二胺类化合物,其可以邻苯二胺、顺式-1,2-环己二胺、乙二胺和1,2-丙二胺中的一种或两种以上;
以附载Fe配合物的碳纳米管作催化剂,原料1,3-丁二酮衍生物2与该催化剂含铁量(铁)的摩尔比为1:0.05-1:0.15;
反应溶剂为N,N-二甲基甲酰胺(DMF)、乙醇、四氢呋喃(THF)、甲苯、1,2-二氯乙烷(DCE)、1,4-二氧六环中的一种或两种以上的混合物;1,3-丁二酮衍生物2于反应溶剂中的摩尔浓度为0.05-1.0M;芳基胺3于反应溶剂中的摩尔浓度为0.1-2.0M;
反应气氛为为空气、氧气、氮气或氩气中的一种或两种以上;反应时间为8-32小时;反应温度为40-120℃。
5.按照权利要求4所述的应用,其特征在于:与FeCl3·6H2O形成配合物的二胺类化合物,其最好是邻苯二胺或1,2-丙二胺。
6.按照权利要求4所述的应用,其特征在于:原料1,3-丁二酮衍生物2与该催化剂含铁量(铁)的优选摩尔比为1:0.06-1:0.10。
7.按照权利要求4所述的应用,其特征在于:原料1,3-丁二酮衍生物2与芳基胺3反应生成3-(芳氨基)丁-2-烯-1-酮衍生物1最好在1,2-二氯乙烷(DCE)中进行;原料1,3-丁二酮衍生物2与芳基胺3反应生成3-(芳氨基)丁-2-烯-1-酮衍生物1的最佳反应气氛为空气。
8.按照权利要求4所述的应用,其特征在于:1,3-丁二酮衍生物2于反应溶剂中的优选摩尔浓度为0.05-0.2M;芳基胺3于反应溶剂中的优选摩尔浓度为0.1-0.4M。
9.按照权利要求4所述的应用,其特征在于:原料1,3-丁二酮衍生物2与芳基胺3反应生成3-(芳氨基)丁-2-烯-1-酮衍生物1的最佳反应时间为9-21小时。
10.按照权利要求4所述的应用,其特征在于:原料1,3-丁二酮衍生物2与芳基胺3反应生成3-(芳氨基)丁-2-烯-1-酮衍生物1的最佳反应温度为70-110℃。
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