CN115521256B - Preparation method of 4-amino-1, 8-naphthalimide derivative - Google Patents
Preparation method of 4-amino-1, 8-naphthalimide derivative Download PDFInfo
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- SSMIFVHARFVINF-UHFFFAOYSA-N 4-amino-1,8-naphthalimide Chemical class O=C1NC(=O)C2=CC=CC3=C2C1=CC=C3N SSMIFVHARFVINF-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 71
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 62
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000003960 organic solvent Substances 0.000 claims abstract description 37
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 31
- MUALRAIOVNYAIW-UHFFFAOYSA-N binap Chemical compound C1=CC=CC=C1P(C=1C(=C2C=CC=CC2=CC=1)C=1C2=CC=CC=C2C=CC=1P(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 MUALRAIOVNYAIW-UHFFFAOYSA-N 0.000 claims abstract description 29
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 claims abstract description 29
- APBIDAXJCGEEIS-UHFFFAOYSA-N 6-bromobenzo[de]isoquinoline-1,3-dione Chemical class O=C1NC(=O)C2=CC=CC3=C2C1=CC=C3Br APBIDAXJCGEEIS-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- SXZIXHOMFPUIRK-UHFFFAOYSA-N diphenylmethanimine Chemical compound C=1C=CC=CC=1C(=N)C1=CC=CC=C1 SXZIXHOMFPUIRK-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 11
- 239000007864 aqueous solution Substances 0.000 claims abstract description 9
- 150000001447 alkali salts Chemical class 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 claims abstract 6
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 84
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 84
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 claims description 26
- 229910000024 caesium carbonate Inorganic materials 0.000 claims description 26
- 239000012074 organic phase Substances 0.000 claims description 26
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 22
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 8
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 4
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 4
- 235000011009 potassium phosphates Nutrition 0.000 claims description 4
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 2
- 239000002585 base Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 2
- 238000005580 one pot reaction Methods 0.000 abstract 1
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 84
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 48
- 238000005481 NMR spectroscopy Methods 0.000 description 26
- 239000000203 mixture Substances 0.000 description 25
- 239000000843 powder Substances 0.000 description 25
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 24
- 239000003208 petroleum Substances 0.000 description 24
- 229920006395 saturated elastomer Polymers 0.000 description 24
- 239000012046 mixed solvent Substances 0.000 description 23
- 239000000243 solution Substances 0.000 description 23
- 238000004587 chromatography analysis Methods 0.000 description 21
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- 239000000975 dye Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 3
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 2
- 238000005160 1H NMR spectroscopy Methods 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- CWRYPZZKDGJXCA-UHFFFAOYSA-N acenaphthene Chemical compound C1=CC(CC2)=C3C2=CC=CC3=C1 CWRYPZZKDGJXCA-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- -1 naphthalene amide Chemical class 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical compound OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- HXGDTGSAIMULJN-UHFFFAOYSA-N acetnaphthylene Natural products C1=CC(C=C2)=C3C2=CC=CC3=C1 HXGDTGSAIMULJN-UHFFFAOYSA-N 0.000 description 1
- 238000004176 ammonification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- XJHABGPPCLHLLV-UHFFFAOYSA-N benzo[de]isoquinoline-1,3-dione Chemical class C1=CC(C(=O)NC2=O)=C3C2=CC=CC3=C1 XJHABGPPCLHLLV-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 125000000532 dioxanyl group Chemical group 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003068 molecular probe Substances 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D221/00—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00
- C07D221/02—Heterocyclic compounds containing six-membered rings having one nitrogen atom as the only ring hetero atom, not provided for by groups C07D211/00 - C07D219/00 condensed with carbocyclic rings or ring systems
- C07D221/04—Ortho- or peri-condensed ring systems
- C07D221/06—Ring systems of three rings
- C07D221/14—Aza-phenalenes, e.g. 1,8-naphthalimide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/04—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D405/00—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom
- C07D405/02—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings
- C07D405/04—Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring-member bond
Abstract
The invention provides a preparation method of a 4-amino-1, 8-naphthalimide derivative, which comprises a first-stage reaction, redissolution and a second-stage reaction; the first stage reaction method is that 4-bromo-1, 8-naphthalimide derivative, benzophenone imine, BINAP, palladium acetate, metal alkali salt and organic solvent are added into a reaction vessel to react for 8-24 hours at 40-85 ℃; the re-dissolving method comprises the steps of removing the organic solvent, and adding a proper amount of tetrahydrofuran for dissolving; the second stage reaction method is that the 4-amino-1, 8-naphthalimide derivative is obtained by post-treatment separation after adding hydrochloric acid aqueous solution and stirring for 28-32 minutes. The preparation method provided by the invention is used for preparing the 4-amino-1, 8-naphthalimide derivative by a one-pot two-step method, and has the advantages of simple and easily obtained raw materials, wide substrate range, simplicity and safety in operation, environment-friendly production process and high yield.
Description
Technical Field
The invention relates to a preparation method of a 4-amino-1, 8-naphthalimide derivative, belonging to the technical field of chemical synthesis.
Background
1, 8-naphthalimides have been reported and widely used since a long time ago. Because of the bright color and strong fluorescence, the material becomes an important functional material. The compounds have high thermal stability and high light resistance, and are widely used as fluorescent dyes and fluorescent whitening agents in textile, printing and dyeing, printing ink, paint and other industries. In addition, the compound has high quantum efficiency and excellent photochemical stability, and has wide application in the fields of metal fluorescent probes, photoelectric energy sensitive materials, DNA, intercalators, organic photoconductive materials and the like. At present, the research of the dye is very active at home and abroad, the industrial production of the dye is greatly increased each year, and the dye has very wide application prospect.
The 4-amino-1, 8-naphthalimide derivative is used as a typical representative of naphthalimide compounds, has excellent optical characteristics, and has many researches in the fields of fluorescent dyes and fluorescent molecular probes. In recent years, studies on the naphthalene amide-based dye have been reported many times, but there are few reports on the synthesis method thereof. The traditional synthetic route of the 4-amino-1, 8-naphthalimide derivative is to take acenaphthene as raw material and prepare the 4-amino-1, 8-naphthalimide derivative through four steps of reactions of nitration, oxidation, reduction and ammonification, wherein dilute nitric acid, acetic acid nitration, sodium dichromate and acetic acid oxidation are needed in the synthesis, the raw materials have environmental pollution and have stronger corrosiveness to equipment, and in addition, sodium azide is also used for preparing the 4-amino-1, 8-naphthalimide derivative by people, but azide compounds are easy to explode and are unsafe to operate.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a preparation method of 4-amino-1, 8-naphthalimide derivatives, which avoids using raw materials polluting the environment, reduces corrosion to equipment, is safe to operate and improves the yield.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
technical scheme A:
a preparation method of a 4-amino-1, 8-naphthalimide derivative, which comprises a first-stage reaction, redissolution and a second-stage reaction;
the first stage reaction method is that 4-bromo-1, 8-naphthalimide derivative, benzophenone imine, BINAP, palladium acetate, metal alkali salt and organic solvent are added into a reaction vessel to react for 8-24 hours at 40-85 ℃;
the re-dissolving method comprises the steps of removing the organic solvent, and adding a proper amount of tetrahydrofuran for dissolving;
the second stage reaction method is that the 4-amino-1, 8-naphthalimide derivative is obtained by post-treatment separation after adding hydrochloric acid aqueous solution and stirring for 28-32 minutes.
The post-treatment separation method comprises the steps of adding saturated sodium bicarbonate aqueous solution to neutralize to be neutral after the second-stage reaction is finished, adopting an organic solvent to extract, collecting an organic phase, and obtaining the 4-amino-1, 8-naphthalimide derivative after drying and purifying by a chromatographic column.
The molar ratio of the 4-bromo-1, 8-naphthalimide derivative to the benzophenone imine is 1:1.2;
the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to BINAP is 1:0.2;
the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to palladium acetate is 1:0.2;
the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to the metal base salt is 1:1.5;
the volume ratio of the benzophenone imine to the organic solvent is 1:49-52.
The metal alkali salt is one of cesium carbonate, potassium hydroxide, potassium phosphate and potassium carbonate; the organic solvent is one of dioxane, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dichloromethane and toluene.
In the redissolution step, the volume ratio of tetrahydrofuran to benzophenone imine is 49-52:1.
in the second stage reaction, the concentration of the hydrochloric acid aqueous solution is 1.8-2.2M; the volume ratio of the hydrochloric acid aqueous solution to the benzophenone imine is 49-52:1, a step of; the stirring speed is 750-850r/min.
The structural general formula of the 4-bromo-1, 8-naphthalimide derivative is as follows
;
The 4-bromo-1, 8-naphthalimide derivative is 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1l, 1m, 1n;
the structural formula of the 1a is as follows:
the structural formula of 1b is as follows:
the structural formula of 1c is as follows:
the structural formula of 1d is as follows:
the structural formula of 1e is as follows:
the structural formula of 1f is as follows:
the structural formula of 1g is as follows:
the structural formula of 1h is as follows:
the structural formula of 1i is as follows:
the structural formula of 1j is as follows:
the structural formula of 1k is as follows:
the structural formula of 1l is as follows:
the structural formula of 1m is as follows:
the structural formula of 1n is as follows:
。
the structural general formula of the 4-amino-1, 8-naphthalimide derivative is as follows
The yield of the 4-amino-1, 8-naphthalimide derivative prepared in the above scheme A is 50-98%.
The preferred technical scheme B is as follows:
on the basis of the technical scheme A, the metal alkali salt is one of cesium carbonate, potassium phosphate and potassium carbonate;
the yield of the 4-amino-1, 8-naphthalimide derivative prepared in the technical scheme B is 65-98%.
The preferred technical scheme C is as follows:
on the basis of the technical scheme A, the change is that: 1b is not included in the 4-bromo-1, 8-naphthalimide derivative; the metal alkali salt is cesium carbonate; the organic solvent is one of dioxane, ethyl acetate and dichloromethane; the reaction temperature of the first-stage reaction is 60-80 ℃;
the yield of the 4-amino-1, 8-naphthalimide derivative prepared in the technical scheme C is 80-98%.
The preferred technical scheme D is as follows:
on the basis of the technical scheme A, the change is that: the metal alkali salt is cesium carbonate; the organic solvent is dioxane; the reaction temperature of the first-stage reaction is 80 ℃; 1b is not contained in the 4-bromo-1, 8-naphthalimide derivative; namely, the 4-bromo-1, 8-naphthalimide derivatives are 1a, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1l, 1m, 1n.
The yield of the 4-amino-1, 8-naphthalimide derivative prepared in the above preferred embodiment D is 89-98%.
Compared with the prior art, the invention has the following beneficial effects:
the preparation method is safe and simple in operation process, green and environment-friendly, high in final yield, cost-saving, wide in substrate application range, and the yield of the prepared 4-amino-1, 8-naphthalimide derivative is 50-98%, and the yield of the most preferable technical scheme can reach 89-98%.
Detailed Description
The present invention will be described in further detail with reference to specific examples. Unless otherwise indicated, reagents, equipment, and methods employed in the present invention are those conventionally commercially available in the art, equipment, and methods conventionally employed.
Embodiment one:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 40 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 65% yield.
Embodiment two:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 60 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 87% yield.
Embodiment III:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 98% yield.
Embodiment four:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), ethyl acetate (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL of dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 85% yield.
Fifth embodiment:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), and tetrahydrofuran (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer 800 r/min for 30 min. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 65% yield.
Example six:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), N-dimethylformamide (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 65% yield.
Embodiment seven:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), and methylene chloride (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 86% yield.
Example eight:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), toluene (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 80% yield.
Example nine:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), potassium hydroxide (1.5 mmol,84.2 mg), and dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 50% yield.
Example ten:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), potassium carbonate (1.5 mmol,207.3 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in 69% yield.
Example eleven:
to the pressure-resistant tube were added 1a (1.0 mmol,318.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), potassium phosphate (1.5 mmol,318.4 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3a in a yield of 72%.
The yellow powders 3a prepared in examples one to eleven were mixed in equal mass ratio, 1HNMR
The data for 13C NMR are as follows:
1HNMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.19 (d, J = 8.4 Hz, 1H), 7.65 (t, J = 7.8 Hz, 1H), 7.45 (s, 2H), 6.84 (d, J = 8.4 Hz, 1H), 4.04 – 3.89 (m, 2H), 1.67 – 1.54 (m, 2H), 0.90 (t, J = 7.4 Hz, 3H);13C NMR (101 MHz, DMSO) δ 164.24 (s), 163.48 (s), 153.13 (s), 134.38 (s), 131.42 (s), 131.26 – 130.41 (m), 129.90 (d, J = 45.6 Hz), 124.40 (s), 122.22 (s), 119.82 (s), 108.60 (s), 108.02 (s), 41.17 (s), 21.44 (s), 11.86 (s)。
embodiment twelve:
to the pressure-resistant tube were added 1b (1.0 mmol,320.1 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the reaction is completed, the mixture is rotatedThe organic solvent was removed at 50deg.C by evaporation, dissolved in tetrahydrofuran (10 mL), and then stirred with aqueous hydrochloric acid (2M, 10 mL) for 30 min using a magnetic stirrer 800 r/min. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3b in 80% yield. 1 H NMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.42 (d, J = 7.1 Hz, 1H), 8.19 (d, J = 8.3 Hz, 1H), 7.76 – 7.57 (m, 1H), 7.44 (s, 2H), 6.84 (d, J = 8.3 Hz, 1H), 4.79 (t, J = 5.7 Hz, 1H), 4.20 – 4.04 (m, 2H), 3.61 – 3.52 (m, 2H); 13 C NMR (101 MHz, DMSO) δ 164.40 (s), 163.51 (s), 153.12 (s), 134.37 (s), 131.43 (s), 130.21 (s), 129.72 (s), 124.42 (s), 122.36 (s), 119.84 (s), 108.52 (s), 108.13 (s), 58.46 (s), 41.82 (s)。
Embodiment thirteen:
to the pressure-resistant tube were added 1c (1.0 mmol,304.1 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3c in 90% yield. 1 H NMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.20 (d, J = 8.4 Hz, 1H), 7.65 (t, J = 7.8 Hz, 1H), 7.45 (s, 2H), 6.84 (d, J = 8.4 Hz, 1H), 4.05 (q, J = 7.0 Hz, 2H), 1.18 (t, J = 7.0 Hz, 3H); 13 C NMR (101 MHz, DMSO) δ 164.02 (s), 163.16 (s), 153.13 (s), 134.34 (s), 131.38 (s), 130.20 (s), 129.62 (s), 124.40 (s), 122.27 (s), 119.81 (s), 108.60 (s), 108.04 (s), 34.75 (s), 13.77 (s)。
Fourteen examples:
to the pressure-resistant tube were added 1d (1.0 mmol,419.3 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain a yellow powder 3d in 98% yield. 1 H NMR (400 MHz, DMSO) δ 8.60 (d, J = 8.3 Hz, 1H), 8.43 (t, J = 10.8 Hz, 1H), 8.18 (d, J = 8.3 Hz, 1H), 7.65 (t, J = 7.8 Hz, 1H), 7.41 (s, 2H), 6.84 (d, J = 8.5 Hz, 2H), 4.09 (t, J = 5.4 Hz, 2H), 3.26 – 3.14 (m, 2H), 1.22 (d, J = 31.2 Hz, 9H).; 13 C NMR (101 MHz, DMSO) δ 164.46 (s), 163.57 (s), 156.18 (s), 153.10 (s), 137.38 – 134.48 (m), 132.77 (d, J = 298.9 Hz), 130.30 (s), 129.60 (s), 126.40 – 125.38 (m), 123.42 (d, J = 183.2 Hz), 119.83 (s), 108.41 (d, J = 18.5 Hz), 77.86 (s), 38.51 (s), 28.59 (s), 24.79 (s)。
Example fifteen:
to the pressure-resistant tube were added 1e (1.0 mmol,332.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3e in 90% yield. 1 H NMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.19 (d, J = 8.4 Hz, 1H), 7.65 (t, J = 7.8 Hz, 1H), 7.45 (s, 2H), 6.84 (d, J = 8.4 Hz, 1H), 4.02 (dt, J = 14.5, 7.2 Hz, 2H), 1.68 – 1.45 (m, 1H), 1.33 (dq, J = 14.6, 7.3 Hz, 2H), 0.97 – 0.87 (m, 3H).; 13 C NMR (101 MHz, DMSO) δ 164.12 (s), 163.36 (s), 153.14 (s), 134.38 (s), 131.42 (s), 130.79 – 130.21 (m), 129.93 (d, J = 39.7 Hz), 124.41 (s), 122.25 (s), 119.83 (s), 108.61 (s), 107.98 (s), 39.35 (s), 30.30 (s), 20.30 (s), 14.21 (s)。
Example sixteen:
to the pressure-resistant tube were added 1f (1.0 mmol,332.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, and the organic phase was collected and driedFinally, the mixture solvent of ethyl acetate and petroleum ether 1/2 is used for chromatographic column purification to obtain yellow powder 3f, and the yield is 96%. 1 H NMR (400 MHz, DMSO) δ 8.62 (d, J = 8.3 Hz, 1H), 8.44 (t, J = 6.9 Hz, 1H), 8.20 (d, J = 8.4 Hz, 1H), 7.66 (t, J = 7.8 Hz, 1H), 7.45 (s, 2H), 6.85 (d, J = 8.4 Hz, 1H), 3.87 (d, J = 7.3 Hz, 2H), 2.16 – 2.05 (m, 1H), 0.88 (d, J = 6.7 Hz, 6H); 13 C NMR (101 MHz, DMSO) δ 164.52 (s), 163.65 (s), 153.10 (s), 134.44 (s), 131.49 (s), 130.17 (s), 129.69 (s), 124.40 (s), 122.21 (s), 119.81 (s), 108.61 (s), 108.00 (s), 46.46 (s), 27.32 (s), 20.63 (s)。
Example seventeenth:
to the pressure-resistant tube were added 1g (1.0 mmol,352.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by column chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain 3g of yellow powder in 95% yield. 1 H NMR (400 MHz, DMSO) δ 8.66 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.20 (d, J = 8.4 Hz, 1H), 7.68 (t, J = 7.8 Hz, 1H), 7.53 – 7.40 (m, 5H), 7.30 (d, J = 7.5 Hz, 2H), 6.88 (d, J = 8.4 Hz, 1H); 13 C NMR (101 MHz, DMSO) δ 164.51 (s), 163.64 (s), 153.31 (s), 137.09 (s), 134.46 (s), 131.60 (s), 130.67 (s), 129.95 (s), 129.69 (s), 129.20 (s), 128.28 (s), 124.49 (s), 122.69 (s), 119.97 (s), 108.69 (s), 108.29 (s)。
Example eighteenth:
to the pressure-resistant tube were added 1h (1.0 mmol,366.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain a yellow powder for 3 hours in 96% yield. 1 H NMR (400 MHz, DMSO) δ 8.64 (d, J = 8.2 Hz, 1H), 8.45 (d, J = 7.0 Hz, 1H), 8.22 (d, J = 8.4 Hz, 1H), 7.67 (t, J = 7.8 Hz, 1H), 7.51 (s, 2H), 7.30 (dt, J = 15.0, 7.3 Hz, 4H), 7.22 (t, J = 6.9 Hz, 1H), 6.86 (d, J = 8.4 Hz, 1H), 5.22 (s, 2H); 13 C NMR (101 MHz, DMSO) δ 164.30 (s), 163.36 (s), 153.41 (s), 138.47 (s), 134.66 (s), 131.71 (s), 130.27 (s), 129.99 (s), 128.74 (s), 127.96 (s), 127.32 (s), 124.48 (s), 122.11 (s), 119.86 (s), 108.74 (s), 107.79 (s), 42.91 (s)。
Example nineteenth:
to the pressure-resistant tube were added 1i (1.0 mmol,473.3 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. Removing organic solvent at 50deg.C by rotary evaporator, adding tetrahydrofuran (10 mL) for dissolving, and adding hydrochloric acid for dissolvingThe solution (2M, 10 mL) was stirred with a magnetic stirrer 800 r/min for 30 min. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3i in 98% yield. 1 H NMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.38 (d, J = 7.2 Hz, 1H), 8.15 (d, J = 8.4 Hz, 1H), 7.75 – 7.53 (m, 4H), 7.45 (s, 2H), 7.23 (d, J = 8.0 Hz, 2H), 6.83 (d, J = 8.4 Hz, 1H), 4.13 – 3.99 (m, 2H), 3.03 (dd, J = 12.9, 6.4 Hz, 2H), 2.27 (s, 3H); 13 C NMR (101 MHz, DMSO) δ 164.33 (s), 163.39 (s), 153.11 (s), 142.88 (s), 138.01 (s), 134.39 (s), 131.42 (s), 130.26 (s), 129.81 (d, J = 17.5 Hz), 126.82 (s), 124.39 (s), 122.24 (s), 119.77 (s), 108.56 (s), 108.01 (s), 21.32 (s)。
Example twenty:
to the pressure-resistant tube were added 1j (1.0 mmol,389.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3j in 92% yield. 1 H NMR (400 MHz, DMSO) δ 8.62 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.19 (d, J = 8.4 Hz, 1H), 7.66 (t, J = 7.8 Hz, 1H), 7.47 (s, 2H), 6.84 (d, J = 8.4 Hz, 1H), 4.13 (dt, J = 12.3, 6.1 Hz, 2H), 3.60 – 3.49 (m, 4H), 2.57 – 2.52 (m, 2H), 2.45 (s, 4H); 13 C NMR (101 MHz, DMSO) δ 164.23 (s), 163.41 (s), 153.20 (s), 134.48 (s), 131.48 (s), 130.17 (s), 129.79 (s), 124.44 (s), 122.20 (s), 119.82 (s), 108.63 (s), 107.95 (s), 66.59 (s), 56.28 (s), 53.89 (s)。
Example twenty-one:
to the pressure-resistant tube were added 1k (1.0 mmol,348.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3k in 89% yield. 1 H NMR (400 MHz, DMSO) δ 8.61 (d, J = 8.3 Hz, 1H), 8.43 (d, J = 7.2 Hz, 1H), 8.19 (d, J = 8.3 Hz, 1H), 7.65 (t, J = 7.8 Hz, 1H), 7.45 (s, 2H), 6.84 (d, J = 8.3 Hz, 1H), 4.07 (t, J = 7.0 Hz, 2H), 3.40 (t, J = 6.2 Hz, 2H), 3.22 (d, J = 2.6 Hz, 3H), 1.90 – 1.77 (m, 2H); 13 C NMR (101 MHz, DMSO) δ 164.25 (s), 163.37 (s), 153.12 (s), 134.35 (s), 131.39 (s), 130.13 (s), 129.69 (s), 124.38 (s), 122.25 (s), 119.82 (s), 108.60 (s), 108.08 (s), 70.55 (s), 58.28 (s), 37.42 (s), 28.38 (s)。
Example twenty two:
1l (1)0 mmol,360.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain 3l of yellow powder in 90% yield. 1 H NMR (400 MHz, DMSO) δ 8.60 (d, J = 8.2 Hz, 1H), 8.42 (d, J = 7.1 Hz, 1H), 8.19 (d, J = 8.3 Hz, 1H), 7.73 – 7.56 (m, 1H), 7.45 (s, 2H), 6.84 (d, J = 8.3 Hz, 1H), 5.15 (t, J = 11.6 Hz, 1H), 3.97 (d, J = 8.2 Hz, 2H), 3.46 – 3.38 (m, 2H), 2.74 (dt, J = 20.3, 10.0 Hz, 2H), 1.52 (d, J = 11.3 Hz, 2H); 13 C NMR (101 MHz, DMSO) δ 164.68 (s), 163.80 (s), 153.01 (s), 134.50 (s), 131.48 (s), 130.17 (s), 129.64 (s), 124.42 (s), 122.65 (s), 119.64 (s), 108.67 (s), 108.23 (s), 67.79 (s), 49.74 (s), 29.31 (s)。
Example twenty-three:
to the pressure-resistant tube were added 1m (1.0 mmol,353.2 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). 16. 16h were stirred at 80 ℃. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, it was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally extracted with ethyl acetate and petroleum ether 1/2The mixed solvent is purified by a chromatographic column to obtain yellow powder with the yield of 3m and 93 percent. 1 H NMR (400 MHz, DMSO) δ 8.49 (d, J = 8.3 Hz, 1H), 8.35 (d, J = 4.3 Hz, 1H), 8.29 (d, J = 7.2 Hz, 1H), 8.06 (d, J = 8.4 Hz, 1H), 7.61 – 7.49 (m, 2H), 7.33 (s, 2H), 7.16 (d, J = 7.7 Hz, 1H), 7.09 (dd, J = 6.9, 5.3 Hz, 1H), 6.72 (d, J = 8.4 Hz, 1H), 4.24 (dd, J = 16.8, 9.2 Hz, 2H), 2.98 – 2.87 (m, 2H); 13 C NMR (101 MHz, DMSO) δ 164.17 (s), 163.28 (s), 159.34 (s), 153.15 (s), 149.39 (s), 136.98 (s), 134.37 (s), 131.43 (s), 130.12 (s), 129.73 (s), 124.42 (s), 123.58 (s), 122.11 (d, J = 13.0 Hz), 119.80 (s), 108.64 (s), 108.01 (s), 39.55 (s), 36.24 (s)。
Example twenty-four:
to the pressure-resistant tube were added 1n (1.0 mmol,452.3 mg), 2 (1.2 mmol,0.20 mL), palladium acetate (0.2 mmol,45.0 mg), BINAP (0.2 mmol,124.5 mg), cesium carbonate (1.5 mmol,489.7 mg), dioxane (10 mL). Stirred at 80℃for 16h. After the completion of the reaction, the organic solvent was removed by a rotary evaporator at 50℃and dissolved in tetrahydrofuran (10 mL), and then an aqueous hydrochloric acid solution (2M, 10 mL) was added thereto and stirred with a magnetic stirrer at 800 r/min for 30 minutes. After the reaction, the mixture was neutralized to ph=7 with saturated aqueous sodium bicarbonate, extracted with 50mL dichloromethane, the organic phase was collected, dried, and finally purified by chromatography using a mixed solvent of ethyl acetate and petroleum ether 1/2 to obtain yellow powder 3n in 91% yield. 1 H NMR (400 MHz, DMSO) δ 8.72 (d, J = 8.2 Hz, 1H), 8.42 (d, J = 7.2 Hz, 1H), 8.18 (d, J = 8.4 Hz, 1H), 7.64 (d, J = 11.9 Hz, 3H), 6.89 (d, J = 8.4 Hz, 1H), 4.68 (t, J = 5.3 Hz, 1H), 4.21 (t, J = 6.1 Hz, 2H), 3.60 (dd, J = 20.1, 13.9 Hz, 5H), 3.46 (s, 7H), 3.37 (d, J = 5.0 Hz, 2H); 13 C NMR (101 MHz, DMSO) δ 164.32 (s), 163.36 (s), 153.45 (s), 134.46 (s), 131.52 (s), 130.19 (d, J = 8.2 Hz), 124.35 (s), 122.06 (s), 119.83 (s), 108.64 (s), 107.65 (s), 72.73 (s), 70.12 (dd, J = 10.8, 8.5 Hz), 67.59 (s), 60.57 (s), 38.74 (s)。
Claims (6)
1. A preparation method of a 4-amino-1, 8-naphthalimide derivative is characterized by comprising the following steps of: the preparation method comprises a first-stage reaction, redissolution and a second-stage reaction;
the first stage reaction method is that 4-bromo-1, 8-naphthalimide derivative, benzophenone imine, BINAP, palladium acetate, metal alkali salt and organic solvent are added into a reaction vessel to react for 8-24 hours at 40-85 ℃;
the metal alkali salt is one of cesium carbonate, potassium hydroxide, potassium phosphate and potassium carbonate;
the re-dissolving method comprises the steps of removing the organic solvent, and adding a proper amount of tetrahydrofuran for dissolving;
the second stage reaction method is that hydrochloric acid aqueous solution is added and stirred for 28-32 minutes, and then 4-amino-1, 8-naphthalimide derivative is obtained through post-treatment separation;
the 4-bromo-1, 8-naphthalimide derivative is 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1l, 1m, 1n;
the structural formula of the 1a is as follows:
;
the structural formula of 1b is as follows:
;
the structural formula of 1c is as follows:
;
the structural formula of 1d is as follows:
;
the structural formula of 1e is as follows:
;
the structural formula of 1f is as follows:
;
the structural formula of 1g is as follows:
;
the structural formula of 1h is as follows:
;
the structural formula of 1i is as follows:
;
the structural formula of 1j is as follows:
;
the structural formula of 1k is as follows:
;
the structural formula of 1l is as follows:
;
the structural formula of 1m is as follows:
;
the structural formula of 1n is as follows:
。
2. the method for producing a 4-amino-1, 8-naphthalimide derivative according to claim 1, wherein: the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to the benzophenone imine is 1:1.2; the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to BINAP is 1:0.2; the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to palladium acetate is 1:0.2; the molar ratio of the 4-bromo-1, 8-naphthalimide derivative to the metal base salt is 1:1.5; the volume ratio of the benzophenone imine to the organic solvent is 1:49-52.
3. The method for producing a 4-amino-1, 8-naphthalimide derivative according to claim 1, wherein: the organic solvent is one of dioxane, ethyl acetate, tetrahydrofuran, N-dimethylformamide, dichloromethane and toluene.
4. The method for producing a 4-amino-1, 8-naphthalimide derivative according to claim 1, wherein: in the redissolution step, the volume ratio of tetrahydrofuran to benzophenone imine is 49-52:1.
5. the method for producing a 4-amino-1, 8-naphthalimide derivative according to claim 1, wherein: in the second stage reaction, the concentration of the hydrochloric acid aqueous solution is 1.8-2.2M; the volume ratio of the hydrochloric acid aqueous solution to the benzophenone imine is 49-52:1, a step of; the stirring speed is 750-850r/min.
6. The method for producing a 4-amino-1, 8-naphthalimide derivative according to claim 1, wherein: the post-treatment separation method comprises the steps of adding saturated sodium bicarbonate aqueous solution to neutralize to be neutral after the second-stage reaction is finished, adopting an organic solvent to extract, collecting an organic phase, and obtaining the 4-amino-1, 8-naphthalimide derivative after drying and purifying by a chromatographic column.
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