CN112608284A - 2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 - Google Patents
2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 Download PDFInfo
- Publication number
- CN112608284A CN112608284A CN202011387227.8A CN202011387227A CN112608284A CN 112608284 A CN112608284 A CN 112608284A CN 202011387227 A CN202011387227 A CN 202011387227A CN 112608284 A CN112608284 A CN 112608284A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- reaction
- triazine
- methoxyphenyl
- dichloro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- JOYIXJKYQUJKQO-UHFFFAOYSA-N 2,4-dichloro-6-(4-methoxyphenyl)-1,3,5-triazine Chemical compound C1=CC(OC)=CC=C1C1=NC(Cl)=NC(Cl)=N1 JOYIXJKYQUJKQO-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims abstract description 52
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000003054 catalyst Substances 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 239000000047 product Substances 0.000 claims abstract description 34
- 229910052763 palladium Inorganic materials 0.000 claims abstract description 26
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 25
- MGNCLNQXLYJVJD-UHFFFAOYSA-N cyanuric chloride Chemical compound ClC1=NC(Cl)=NC(Cl)=N1 MGNCLNQXLYJVJD-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 20
- 239000012043 crude product Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 13
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 10
- 238000006069 Suzuki reaction reaction Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 52
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 28
- VOAAEKKFGLPLLU-UHFFFAOYSA-N (4-methoxyphenyl)boronic acid Chemical compound COC1=CC=C(B(O)O)C=C1 VOAAEKKFGLPLLU-UHFFFAOYSA-N 0.000 claims description 19
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000003197 catalytic effect Effects 0.000 abstract 1
- KNPNGMXRGITFLE-UHFFFAOYSA-N methylperoxy(phenyl)borinic acid Chemical compound COOB(O)C1=CC=CC=C1 KNPNGMXRGITFLE-UHFFFAOYSA-N 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 description 10
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 description 3
- HHZHOPJRSHTPOP-UHFFFAOYSA-N [O--].[O--].[Fe++].[Sr++] Chemical compound [O--].[O--].[Fe++].[Sr++] HHZHOPJRSHTPOP-UHFFFAOYSA-N 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- -1 aryl Grignard reagent Chemical class 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- JYEUMXHLPRZUAT-UHFFFAOYSA-N 1,2,3-triazine Chemical compound C1=CN=NN=C1 JYEUMXHLPRZUAT-UHFFFAOYSA-N 0.000 description 1
- 238000003547 Friedel-Crafts alkylation reaction Methods 0.000 description 1
- 239000007818 Grignard reagent Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation 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
- 239000006227 byproduct Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000007810 chemical reaction solvent Substances 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000007210 heterogeneous catalysis Methods 0.000 description 1
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- UZKWTJUDCOPSNM-UHFFFAOYSA-N methoxybenzene Substances CCCCOC=C UZKWTJUDCOPSNM-UHFFFAOYSA-N 0.000 description 1
- NQNBVCBUOCNRFZ-UHFFFAOYSA-N nickel ferrite Chemical compound [Ni]=O.O=[Fe]O[Fe]=O NQNBVCBUOCNRFZ-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/14—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom
- C07D251/16—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom
- C07D251/20—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to only one ring carbon atom with no nitrogen atoms directly attached to a ring carbon atom
-
- 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
- B01J31/1616—Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts
- B01J31/1625—Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts immobilised by covalent linkages, i.e. pendant complexes with optional linking groups
- B01J31/1633—Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts immobilised by covalent linkages, i.e. pendant complexes with optional linking groups covalent linkages via silicon containing groups
-
- 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
- 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
-
- 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
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2226—Anionic ligands, i.e. the overall ligand carries at least one formal negative charge
- B01J31/223—At least two oxygen atoms present in one at least bidentate or bridging ligand
- B01J31/2239—Bridging ligands, e.g. OAc in Cr2(OAc)4, Pt4(OAc)8 or dicarboxylate ligands
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- 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
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/40—Substitution reactions at carbon centres, e.g. C-C or C-X, i.e. carbon-hetero atom, cross-coupling, C-H activation or ring-opening reactions
- B01J2231/42—Catalytic cross-coupling, i.e. connection of previously not connected C-atoms or C- and X-atoms without rearrangement
- B01J2231/4205—C-C cross-coupling, e.g. metal catalyzed or Friedel-Crafts type
- B01J2231/4211—Suzuki-type, i.e. RY + R'B(OR)2, in which R, R' are optionally substituted alkyl, alkenyl, aryl, acyl and Y is the leaving group
- B01J2231/4227—Suzuki-type, i.e. RY + R'B(OR)2, in which R, R' are optionally substituted alkyl, alkenyl, aryl, acyl and Y is the leaving group with Y= Cl
-
- 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
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/82—Metals of the platinum group
- B01J2531/824—Palladium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
本发明公开了一种2,4‑二氯‑6‑(4‑甲氧基苯基)‑1,3,5‑三嗪的制备方法,其以对甲氧基苯硼酸和三聚氯氰为原料,磁性二氧化硅负载型钯配合物为催化剂,加入碱和溶剂,进行Suzuki偶联反应,反应结束后分离催化剂相,产物相回收溶剂得粗产品,最后进行重结晶,干燥得到纯产品2,4‑二氯‑6‑(4‑甲氧基苯基)‑1,3,5‑三嗪。其中的催化剂可以通过外磁场即可分离回收循环利用,该磁性催化剂活性高,催化效率高、反应选择性高、产品纯度高,操作简单,反应条件温和,反应过程清洁友好,本发明提供的方法是一种新型的绿色、高效的制备方法。
Description
技术领域
本发明涉及精细化工技术领域,具体为一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法。
背景技术
2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪是重要的化学中间体,是合成三嗪类紫外线吸收剂UV-627的关键中间体。目前,2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法主要采用格氏偶联法进行生产,三聚氯氰与芳基格氏试剂反应生成(US5955060A;US5438138A),此种方法虽然具有较好的选择性,但反应条件要求苛刻,需要无水无氧,且使用易挥发易燃的四氢呋喃作为反应溶剂,给生产操作带来了较大的困难。烷基化反应法制备2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,以三聚氯氰和苯甲醚为原料,二氯甲烷或氯苯等为溶剂,在路易斯酸如无水氯化铝等催化作用下,进行傅克烷基化反应(Journal ofChemical Research 2008,664-665;US5322941A)。这种制备方法虽然简单易操作,但反应选择性差,生成的副产物较多,而且产生大量废水,存在严重的环境安全隐患问题。
针对现有技术存在的缺陷,迫切需要一种制备2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的新方法,以解决现有技术的不足。
发明内容
本发明提供一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法,其操作简单、选择性好、转化率高、产品纯度高,是一种清洁友好的新方法。
本发明的技术方案是,一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法,包括以下步骤:
以对甲氧基苯硼酸和三聚氯氰为原料,磁性二氧化硅负载型钯配合物为催化剂,加入碱和溶剂,进行Suzuki偶联反应,反应结束后分离催化剂相,产物相回收溶剂得粗产品,最后进行重结晶,干燥得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪。
进一步地,其中作为催化剂的磁性二氧化硅负载型钯配合物结构式为:
其中M是Co、Cu、Ni、Zn或Sr中的任意一种。
进一步地,所述原料三聚氯氰与对甲氧基苯硼酸的摩尔比为1:1~1.5,优选1:1~1.2。
进一步地,所述催化剂的用量为对甲氧基苯硼酸物料质量的0.5~30%,优选1~16%。
进一步地,所述的碱为碳酸钾,溶剂为乙醇。
进一步地,Suzuki偶联反应的温度控制在20~50℃,时间为0.5~4小时。
进一步优选地,Suzuki偶联反应的温度控制在30~35℃,时间为1.5-3小时。
进一步地,反应结束后通过外磁场分离回收催化剂。
进一步地,粗产品用乙醇进行重结晶。
本发明还涉及催化剂磁性二氧化硅负载型钯配合物在以对甲氧基苯硼酸和三聚氯氰为原料经Suzuki偶联反应制备2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪中的应用,催化剂的结构式为:
其中M是Co、Cu、Ni、Zn或Sr中的任意一种。
即本发明催化剂为磁性铁钴氧体二氧化硅负载型钯配合物、磁性铁铜氧体二氧化硅负载型钯配合物、磁性铁镍氧体二氧化硅负载型钯配合物、磁性铁锌氧体二氧化硅负载型钯配合物、磁性铁锶氧体二氧化硅负载型钯配合物中的一种。优选磁性铁铜氧体二氧化硅负载型钯配合物或磁性铁锶氧体二氧化硅负载型钯配合物。
采用上述催化剂制备2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,当反应结束后,催化剂沉积在容器底部,通过外磁场即可分离回收催化剂,回收的磁性催化剂不经处理即可进行循环使用,按比例投料进行下一批催化反应。
本发明涉及的反应式如下:
本发明还具有以下有益效果:
(1)功能性磁性二氧化硅负载型钯配合物催化剂活性高,用量少,稳定性好,容易回收和循环利用。
(2)反应过程为非均相催化,产物相和催化剂相易分离,操作简单。
(3)反应过程高效、产品收率高、选择性高,产品纯度高、反应过程清洁友好。
附图说明
图1是实施例7中得到产品的液相色谱图。
具体实施方式
下面将结合实施例对本发明的实施方案进行详细描述,但是本领域技术人员将会理解,下列实施例仅用于说明本发明,而不应视为限定本发明的范围。
实施例1:
在反应瓶中加入对甲氧基苯硼酸(11mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁钴氧体二氧化硅负载型钯配合物(0.14g),在20℃续搅拌反应4h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率38.0%,纯度97.3%。
实施例2:
在反应瓶中加入对甲氧基苯硼酸(11mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁铜氧体二氧化硅负载型钯配合物(0.12g),在30℃续搅拌反应1.5h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率84.0%,纯度98.7%。
实施例3:
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁镍氧体二氧化硅负载型钯配合物(0.14g),在30℃续搅拌反应2h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率52.0%,纯度98.3%。
实施例4
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁锌氧体二氧化硅负载型钯配合物(0.12g),在35℃续搅拌反应2h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率68.5%,纯度98.8%。
实施例5
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁钴氧体二氧化硅负载型钯配合物(0.12g),在45℃续搅拌反应1h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率51.0%,纯度98.2%。
实施例6
在反应瓶中加入对甲氧基苯硼酸(11mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁锶氧体二氧化硅负载型钯配合物(0.12g),在35℃续搅拌反应1.5h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率89.5%,纯度99.0%。
实施例7
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁铜氧体二氧化硅负载型钯配合物(0.15g),在35℃续搅拌反应1.5h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率92.0%,纯度99.1%。
实施例8
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁锶氧体二氧化硅负载型钯配合物(0.15g),在35℃续搅拌反应1.5h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率96.0%,纯度99.4%。
实施例9
在反应瓶中加入对甲氧基苯硼酸(12mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁锌氧体二氧化硅负载型钯配合物(0.15g),在35℃续搅拌反应3h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率79.0%,纯度98.6%。
实施例10
在反应瓶中加入对甲氧基苯硼酸(11mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁锶氧体二氧化硅负载型钯配合物(0.1g),在35℃续搅拌反应2.5h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率93.5%,纯度98.8%。
实施例11
在反应瓶中加入对甲氧基苯硼酸(11mmol),三聚氯氰(10mmol),碳酸钾(20mmol),乙醇(25mL),磁性铁铜氧体二氧化硅负载型钯配合物(0.12g),在35℃续搅拌反应3h。通过外磁场即可分离回收催化剂相,产物相回收溶剂,粗产品用乙醇进行重结晶、干燥可得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪,产率91.0%,纯度99.0%。
实施例12
将实施例7中的催化剂回收,按实施例7中的各条件进行反应,重复使用回收催化剂5次,结果表明催化剂活性不减,2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪产率在87~90%,纯度98.5%以上。
实施例13
将实施例8中的催化剂回收,按实施例8中的各条件进行反应,重复使用回收催化剂5次,结果表明催化剂活性不减,2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪产率90~95%,纯度98.5%以上。
实施例14
将实施例9中的催化剂回收,按实施例9中的各条件进行反应,重复使用回收催化剂5次,结果表明催化剂活性不减,2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪产率70~78%,纯度97%以上。
Claims (10)
1.一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法,其特征在于,包括以下步骤:
以对甲氧基苯硼酸和三聚氯氰为原料,磁性二氧化硅负载型钯配合物为催化剂,加入碱和溶剂,进行Suzuki偶联反应,反应结束后分离催化剂相,产物相回收溶剂得粗产品,最后进行重结晶,干燥得到纯产品2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪。
3.根据权利要求1所述的方法,其特征在于:所述原料三聚氯氰与对甲氧基苯硼酸的摩尔比为1:1~1.5,优选1:1~1.2。
4.根据权利要求1所述的方法,其特征在于:所述催化剂的用量为对甲氧基苯硼酸物料质量的0.5~30%,优选1~16%。
5.根据权利要求1所述的方法,其特征在于:所述的碱为碳酸钾,溶剂为乙醇;碳酸钾与三聚氯氰的摩尔比为1~2:1。
6.根据权利要求1-5任意一项所述的方法,其特征在于:Suzuki偶联反应的温度控制在20~50℃,时间为0.5~4小时。
7.根据权利要求1-5任意一项所述的方法,其特征在于:Suzuki偶联反应的温度控制在30~35℃,时间为1.5-3小时。
8.根据权利要求7所述的方法,其特征在于:反应结束后通过外磁场分离回收催化剂。
9.根据权利要求5所述的方法,其特征在于:粗产品用乙醇进行重结晶。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011387227.8A CN112608284A (zh) | 2020-12-01 | 2020-12-01 | 2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011387227.8A CN112608284A (zh) | 2020-12-01 | 2020-12-01 | 2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112608284A true CN112608284A (zh) | 2021-04-06 |
Family
ID=75228447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011387227.8A Pending CN112608284A (zh) | 2020-12-01 | 2020-12-01 | 2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112608284A (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5322941A (en) * | 1991-01-08 | 1994-06-21 | Hoechst Aktiengesellschaft | Process for the preparation of pyrene compounds |
US5438138A (en) * | 1992-07-02 | 1995-08-01 | Ciba-Geigy Corporation | Process for the preparation of mono- and diaryltriazines |
CN110372619A (zh) * | 2019-07-12 | 2019-10-25 | 中昊(大连)化工研究设计院有限公司 | 一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 |
-
2020
- 2020-12-01 CN CN202011387227.8A patent/CN112608284A/zh active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5322941A (en) * | 1991-01-08 | 1994-06-21 | Hoechst Aktiengesellschaft | Process for the preparation of pyrene compounds |
US5438138A (en) * | 1992-07-02 | 1995-08-01 | Ciba-Geigy Corporation | Process for the preparation of mono- and diaryltriazines |
CN110372619A (zh) * | 2019-07-12 | 2019-10-25 | 中昊(大连)化工研究设计院有限公司 | 一种2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 |
Non-Patent Citations (6)
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2697192B1 (en) | Method for preparation of alkoxy-amine hydrochloride | |
CN106588758B (zh) | 一种2-肼基吡啶衍生物的合成工艺 | |
CN114920630B (zh) | 一种乙二醇单乙烯基醚的连续化生产工艺及设备 | |
CN110903475B (zh) | 一种2-(2-氨基-丙氧基)乙醇和聚醚多元醇的联产方法 | |
CN109096122B (zh) | 制备亚精胺的方法 | |
CN106588657B (zh) | 一种合成碳酸二甲酯的方法 | |
CN115636731B (zh) | 一种2,4-二枯基苯酚的合成方法 | |
CN112608284A (zh) | 2,4-二氯-6-(4-甲氧基苯基)-1,3,5-三嗪的制备方法 | |
CN107216244B (zh) | 一种制备3,5,5-三甲基-3-环己烯-1-酮的方法 | |
CN104710402A (zh) | 一种二环己基冠醚的合成方法 | |
CN109305912B (zh) | 由异丁醛缩合制备2,2,4-三甲基-1,3-戊二醇单异丁酸酯的方法 | |
CN110498777B (zh) | 环氧丁烷的制备方法 | |
CN109020816B (zh) | 从醇酯十二工艺废水中得到3-羟基-2,2,4-三甲基戊酸-2-甲基丙酯的方法 | |
CN110835296A (zh) | 2,2,4-三甲基-3-羟基戊酸的制备工艺 | |
CN110028379B (zh) | 一种4,4’-二氯甲基联苯的制备方法 | |
CN110452097B (zh) | 一种1-羟基芘的制备方法 | |
CN114084889B (zh) | 一种制备三甲硅烷基胺的方法 | |
CN113248355B (zh) | 一种对氯苯甲醛的制备方法 | |
CN113304764B (zh) | 一种用于乙酸甲酯氨化脱水制乙腈的催化剂及其制备方法 | |
CN112409214B (zh) | 一种合成n-甲基氨基甲酸甲酯的方法 | |
CN115894229B (zh) | 一种己二酸单乙酯选择性合成工艺 | |
CN114276229B (zh) | 一种麝香t釜残回收利用的方法 | |
CN115286506B (zh) | 一种以金属有机骨架材料为催化剂一步氧化酯化合成母菊酯的方法 | |
CN109020784B (zh) | 2-甲基-1-苯基-1-丙醇的制备方法 | |
CN113292452B (zh) | 一种氰基乙酰胺的合成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |