CN113087746A - 三联芳膦钯络合物及其用途 - Google Patents
三联芳膦钯络合物及其用途 Download PDFInfo
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- CN113087746A CN113087746A CN202110351074.XA CN202110351074A CN113087746A CN 113087746 A CN113087746 A CN 113087746A CN 202110351074 A CN202110351074 A CN 202110351074A CN 113087746 A CN113087746 A CN 113087746A
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- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052763 palladium Inorganic materials 0.000 title claims abstract description 6
- 239000007983 Tris buffer Substances 0.000 title description 2
- 150000003003 phosphines Chemical class 0.000 title description 2
- 125000005841 biaryl group Chemical group 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 4
- -1 R4Selected from H Chemical group 0.000 claims description 80
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 64
- 239000002904 solvent Substances 0.000 claims description 33
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 32
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 18
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 12
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 12
- 239000004912 1,5-cyclooctadiene Substances 0.000 claims description 11
- 125000004169 (C1-C6) alkyl group Chemical group 0.000 claims description 8
- 125000006376 (C3-C10) cycloalkyl group Chemical group 0.000 claims description 8
- HIXDQWDOVZUNNA-UHFFFAOYSA-N 2-(3,4-dimethoxyphenyl)-5-hydroxy-7-methoxychromen-4-one Chemical compound C=1C(OC)=CC(O)=C(C(C=2)=O)C=1OC=2C1=CC=C(OC)C(OC)=C1 HIXDQWDOVZUNNA-UHFFFAOYSA-N 0.000 claims description 8
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 8
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 8
- 150000002940 palladium Chemical class 0.000 claims description 8
- 239000003208 petroleum Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 125000004191 (C1-C6) alkoxy group Chemical group 0.000 claims description 6
- 125000006736 (C6-C20) aryl group Chemical group 0.000 claims description 6
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- 125000001072 heteroaryl group Chemical group 0.000 claims description 6
- 125000000592 heterocycloalkyl group Chemical group 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 125000001424 substituent group Chemical group 0.000 claims description 6
- 125000004663 dialkyl amino group Chemical group 0.000 claims description 5
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 claims description 4
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 4
- VYXHVRARDIDEHS-UHFFFAOYSA-N 1,5-cyclooctadiene Chemical compound C1CC=CCCC=C1 VYXHVRARDIDEHS-UHFFFAOYSA-N 0.000 claims description 4
- JWUJQDFVADABEY-UHFFFAOYSA-N 2-methyltetrahydrofuran Chemical compound CC1CCCO1 JWUJQDFVADABEY-UHFFFAOYSA-N 0.000 claims description 4
- 125000000041 C6-C10 aryl group Chemical group 0.000 claims description 4
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 claims description 4
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 4
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Natural products P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 claims description 4
- 125000000958 aryl methylene group Chemical group 0.000 claims description 4
- 239000003446 ligand Substances 0.000 claims description 4
- IUYHWZFSGMZEOG-UHFFFAOYSA-M magnesium;propane;chloride Chemical compound [Mg+2].[Cl-].C[CH-]C IUYHWZFSGMZEOG-UHFFFAOYSA-M 0.000 claims description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 125000004430 oxygen atom Chemical group O* 0.000 claims description 4
- 125000004434 sulfur atom Chemical group 0.000 claims description 4
- CEFVTPQJKMALDR-UHFFFAOYSA-N trimethylsilylmethylidenemagnesium Chemical compound C[Si](C)(C)C=[Mg] CEFVTPQJKMALDR-UHFFFAOYSA-N 0.000 claims description 4
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- 229910000073 phosphorus hydride Inorganic materials 0.000 claims description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229960001701 chloroform Drugs 0.000 claims description 2
- HQWPLXHWEZZGKY-UHFFFAOYSA-N diethylzinc Chemical compound CC[Zn]CC HQWPLXHWEZZGKY-UHFFFAOYSA-N 0.000 claims description 2
- AXAZMDOAUQTMOW-UHFFFAOYSA-N dimethylzinc Chemical compound C[Zn]C AXAZMDOAUQTMOW-UHFFFAOYSA-N 0.000 claims description 2
- 125000001153 fluoro group Chemical group F* 0.000 claims description 2
- 125000005842 heteroatom Chemical group 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 125000002346 iodo group Chemical group I* 0.000 claims description 2
- 229910001623 magnesium bromide Inorganic materials 0.000 claims description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L magnesium chloride Substances [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- NXPHGHWWQRMDIA-UHFFFAOYSA-M magnesium;carbanide;bromide Chemical compound [CH3-].[Mg+2].[Br-] NXPHGHWWQRMDIA-UHFFFAOYSA-M 0.000 claims description 2
- LVKCSZQWLOVUGB-UHFFFAOYSA-M magnesium;propane;bromide Chemical compound [Mg+2].[Br-].C[CH-]C LVKCSZQWLOVUGB-UHFFFAOYSA-M 0.000 claims description 2
- 239000012038 nucleophile Substances 0.000 claims description 2
- XSXHWVKGUXMUQE-UHFFFAOYSA-N osmium dioxide Inorganic materials O=[Os]=O XSXHWVKGUXMUQE-UHFFFAOYSA-N 0.000 claims description 2
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 claims description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 58
- 238000006243 chemical reaction Methods 0.000 description 29
- 239000012298 atmosphere Substances 0.000 description 28
- 239000011261 inert gas Substances 0.000 description 28
- 239000007787 solid Substances 0.000 description 28
- MUJIDPITZJWBSW-UHFFFAOYSA-N palladium(2+) Chemical compound [Pd+2] MUJIDPITZJWBSW-UHFFFAOYSA-N 0.000 description 27
- 238000004679 31P NMR spectroscopy Methods 0.000 description 26
- 238000004440 column chromatography Methods 0.000 description 24
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 22
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 8
- OOENWCNMERBWID-UHFFFAOYSA-N [2,6-bis[2,4,6-tri(propan-2-yl)phenyl]phenyl]-dicyclohexylphosphane Chemical compound CC(C)c1cc(C(C)C)c(c(c1)C(C)C)-c1cccc(c1P(C1CCCCC1)C1CCCCC1)-c1c(cc(cc1C(C)C)C(C)C)C(C)C OOENWCNMERBWID-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- ZOUWOGOTHLRRLS-UHFFFAOYSA-N palladium;phosphane Chemical class P.[Pd] ZOUWOGOTHLRRLS-UHFFFAOYSA-N 0.000 description 4
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- 238000004817 gas chromatography Methods 0.000 description 3
- XYZFZMSLKMPMGW-UHFFFAOYSA-N methyl 4-bromo-1-methylpyrrole-2-carboxylate Chemical compound COC(=O)C1=CC(Br)=CN1C XYZFZMSLKMPMGW-UHFFFAOYSA-N 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000010898 silica gel chromatography 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
- XJHCXCQVJFPJIK-UHFFFAOYSA-M caesium fluoride Chemical compound [F-].[Cs+] XJHCXCQVJFPJIK-UHFFFAOYSA-M 0.000 description 2
- PBDBXAQKXCXZCJ-UHFFFAOYSA-L palladium(2+);2,2,2-trifluoroacetate Chemical compound [Pd+2].[O-]C(=O)C(F)(F)F.[O-]C(=O)C(F)(F)F PBDBXAQKXCXZCJ-UHFFFAOYSA-L 0.000 description 2
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- RNHDAKUGFHSZEV-UHFFFAOYSA-N 1,4-dioxane;hydrate Chemical compound O.C1COCCO1 RNHDAKUGFHSZEV-UHFFFAOYSA-N 0.000 description 1
- YGRLFMMSIGPOOI-UHFFFAOYSA-N 1,5-dimethylpyrazol-3-amine Chemical compound CC1=CC(N)=NN1C YGRLFMMSIGPOOI-UHFFFAOYSA-N 0.000 description 1
- MOGQNVSKBCVIPW-UHFFFAOYSA-N 1-methylpyrazol-3-amine Chemical compound CN1C=CC(N)=N1 MOGQNVSKBCVIPW-UHFFFAOYSA-N 0.000 description 1
- KLSJWNVTNUYHDU-UHFFFAOYSA-N Amitrole Chemical compound NC1=NC=NN1 KLSJWNVTNUYHDU-UHFFFAOYSA-N 0.000 description 1
- 238000006443 Buchwald-Hartwig cross coupling reaction Methods 0.000 description 1
- RLUJQUFZZAQWOH-UHFFFAOYSA-N [2,6-bis[2,4,6-tri(propan-2-yl)phenyl]phenyl]-diphenylphosphane Chemical compound C(C)(C)C1=C(C(=CC(=C1)C(C)C)C(C)C)C1=C(C(=CC=C1)C1=C(C=C(C=C1C(C)C)C(C)C)C(C)C)P(C1=CC=CC=C1)C1=CC=CC=C1 RLUJQUFZZAQWOH-UHFFFAOYSA-N 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000001502 aryl halides Chemical class 0.000 description 1
- 150000005347 biaryls Chemical group 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- OKKJLVBELUTLKV-VMNATFBRSA-N methanol-d1 Chemical compound [2H]OC OKKJLVBELUTLKV-VMNATFBRSA-N 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F15/00—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
- C07F15/0006—Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
- C07F15/006—Palladium compounds
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- 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
- B01J31/24—Phosphines, i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g. sp2-hybridised phosphorus compounds such as phosphabenzene, phosphole or anionic phospholide ligands
- B01J31/2404—Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D403/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00
- C07D403/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings
- C07D403/12—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group C07D401/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D413/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms
- C07D413/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings
- C07D413/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D417/00—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00
- C07D417/02—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings
- C07D417/12—Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 containing two hetero rings linked by a chain containing hetero atoms as chain links
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
- B01J2231/4277—C-X Cross-coupling, e.g. nucleophilic aromatic amination, alkoxylation or analogues
- B01J2231/4283—C-X Cross-coupling, e.g. nucleophilic aromatic amination, alkoxylation or analogues using N nucleophiles, e.g. Buchwald-Hartwig amination
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
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- 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
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Abstract
本发明提供三联芳膦钯络合物、它们的制备方法和在偶联反应中的用途。
Description
技术领域
本发明涉及膦钯络合物及它们在催化偶联反应中的性能,属于有机合成领域。
背景技术
钯催化的偶联反应广泛应用于药物、材料和有机合成领域(S.L. Buchwald, etal., Chemical Reviews., 2016,116,12564);新的膦钯催化剂的出现有力促进了实现更温和高效的技术路线的产生,包括实现新反应、新产品和新方法(S.L. Buchwald, et al.,US6, 307, 087; WO 2009/076622)。因此,设计制备新的膦钯催化剂一直化学技术领域中的一个创新热点(Haddad et al., WO 2011/126917)。近来,我们发明了几类三联芳膦钯催化剂(施继成,周发斌,CN 110240616)。为了进一步提供更高效的膦钯催化剂,这里又发明了三类三联芳膦钯催化剂。
发明内容
本发明提供具有通式I、II和III这三类类钯络合物,
其中
L为三联芳膦;
R1和R2各自独立地选自H、F、Cl、CN、NO2、C1-10烷基、C3-10环烷基、C6-10芳基和OC1-10烷氧基,其中C1-10烷基和C3-10环烷基可以带有O、S、N和F原子;
X为Cl、Br、I原子、OSO2R3或O2CCF3,这里R3可以选自甲基、苯基或4-甲苯基。
本发明中具有通式I、II和III的钯络合物中的三联芳膦支持配体具有通式IVa和IVb的结构或它们的混合物,
其中,Ar 选自(C6-C20)芳基, 其可以有1到3个独立地选自(C1-C6)烷基、-O(C1-C6)烷氧基、-N(C1-C6)2二烷基氨基或(C6-C10)芳基的取代基,所述芳基可以有1到3个独立地选自(C1-C6)烷基、-O(C1-C6)烷氧基或-N(C1-C6)2二烷氨基的取代基;
R4选自H、(C1-C6)烷基、-O(C1-C6)烷氧基或-N(C1-C6)2二烷基氨基;
R5和R6各自独立地选自(C1-C10)烷基、(C3-C10)环烷基、(5-11元)杂环烷基、(C6-C20)芳基、(C4-C20)杂芳基或-CH2(C6-C10)芳亚甲基, 这里的(C3-C10)环烷基、(5-11元)杂环烷基、(C6-C20)芳基、(C4-C20)杂芳基和-CH2(C6-C10)芳亚甲基中可以有1到3个独立地选自(C1-C6)烷基或-O(C1-C6)烷氧基-N(C1-C6)2二烷氨基的取代基, 这里的杂环烷基和杂芳基中的杂原子选自O、N和S原子。
本发明中的三联芳膦包括以下结构的三联芳膦,
本发明还提供分别通过方程式1-3来制备具有通式I、II和III三类钯络合物的方法,
其中,COD为1,5-环辛二烯,L、R1、R2和X的定义同上述权利要求,R为三甲硅亚甲基氯化镁、三甲硅亚甲基溴化镁、甲基溴化镁、异丙基氯化镁、异丙基溴化镁、二乙基锌、二甲基锌、三甲基铝、三乙基铝、三异丙基铝和丁基锂中的一种或其中二种的混合物。
溶剂一选自四氢呋喃、2-甲基四氢呋喃、二氧六环、叔丁基甲醚、二苯醚、甲苯、丙酮、乙腈、二氯甲烷、三氯甲烷、己烷、戊烷、石油醚中的一种或它们中的二种混合物;溶剂二选自四氢呋喃、2-甲基四氢呋喃、二氧六环、叔丁基甲醚、二苯醚、甲苯、己烷、戊烷、石油醚中的一种或它们中二种的混合物。
温度一为20-120 oC;温度二为-78—60 oC。
具有通式II和通式III的钯络合物也可通过方程式4和5来制备,
其中,COD、L、溶剂二和温度二的定义同上。
本发明还提供了上述权利要求中定义的钯络合物在催化(拟)卤代芳烃与亲核试剂发生偶联反应形成C-C、C-N和C-O键反应中的用途。
本发明可以由下面的实施例进一步详细说明,但并不意味着本发明受限于这些实施例。
实施例1:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (677 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,得黑色固体1.08 g, 产率99%.
1H NMR (400 MHz, CDCl3) δ 11.90 (s, 1H), 7.80 (d, J = 7.7 Hz, 2H),7.44 (td, J = 7.6, 2.1 Hz, 1H), 7.23 (d, J = 7.7 Hz, 2H), 7.11 (q, J = 8.1,6.0 Hz, 6H), 7.02 (s, 1H), 6.96 (t, J = 7.4 Hz, 1H), 6.93 – 6.87 (m, 1H),6.79 (t, J = 7.5 Hz, 1H), 4.34 (t, J = 7.0 Hz, 1H), 3.79 – 3.68 (m, 2H), 2.97(dtt, J = 22.1, 14.3, 7.7 Hz, 5H), 2.72 (p, J = 6.9 Hz, 2H), 2.49 (t, J = 8.2Hz, 1H), 2.37 – 2.25 (m, 9H), 2.22 – 2.10 (m, 3H), 1.88 – 1.80 (m, 2H), 1.57(t, J = 11.3 Hz, 15H), 1.39 – 1.25 (m, 25H), 1.10 – 0.75 (m, 30H).
13C NMR (101 MHz, MeOD) δ 172.5, 158.6, 151.1, 150.4, 148.0, 146.6,145.6, 145.4, 144.3, 142.2, 140.2, 136.8, 136.0, 135.3, 134.8, 133.6, 133.5,132.9, 132.6, 130.0, 128.4, 126.6, 125.6, 124.8, 124.6, 121.8, 120.8, 120.6,117.0, 68.9, 67.5, 37.8, 37.2, 35.0, 34.8, 34.4, 34.2, 32.2, 30.9, 30.7,28.6, 27.5, 27.2, 27.1, 26.5, 26.4, 26.2, 26.1, 26.0, 25.8, 25.6, 25.5, 25.1,24.9, 24.9, 23.8, 23.2, 23.2, 22.9, 22.5, 21.9, 21.2, 20.0.
31P NMR (162 MHz, CDCl3) δ 53.6.
实施例2:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)甲基磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (677 mg, 1.0 mmol)与(乙酰氨基苯-2-基)甲基磺酸钯(Ⅱ) 二聚物(336 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,得黑色固体1.00 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 53.4.
实施例3:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基环己基膦] (乙酰氨基苯-2-基) 对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基环己基膦] (652 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.58 g, 产率55%.
31P NMR (162 MHz, CDCl3) δ 75.0
实施例4:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (666 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.68g, 产率66%.
31P NMR (162 MHz, CDCl3) δ 42.0.
实施例5:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (4-甲氧基-乙酰氨基-2-苯基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (666 mg, 1.0 mmol)与(4-甲氧基-乙酰氨基-2-苯基)对甲基苯磺酸钯(Ⅱ) 二聚物(442 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h.抽去溶剂,柱层析得黄色固体0.91 g, 产率82%.
31P NMR (162 MHz, CDCl3) δ 40.8.
实施例6:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (苯甲酰氨基-2-苯基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (666 mg, 1.0 mmol)与(苯甲酰氨基-2-苯基)对甲基苯磺酸钯(Ⅱ) 二聚物(473 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.05 g, 产率92%.
31P NMR (162 MHz, CDCl3) δ 42.3.
实施例7:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (646 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.54 g, 产率50%.
31P NMR (162 MHz, CDCl3) δ 66.5.
实施例8:{[(2,6-双(2-甲氧基苯基)苯基)-二苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (583 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.01 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 39.3, 36.4.
实施例9:{[(2,6-双(2-甲氧基苯基)苯基)-二苯基膦] (4-氟-乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (583 mg, 1.0 mmol)与(4-氟-乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(429 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h.抽去溶剂,柱层析得黄色固体0.90 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 39.1, 36.3.
实施例10:{[(2,6-双(2-甲氧基苯基)苯基)-二苯基膦] (4-叔丁基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (583 mg, 1.0 mmol)与(4-叔丁基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(468 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6h. 抽去溶剂,柱层析得黄色固体0.90 g, 产率95%.
31P NMR (162 MHz, CDCl3) δ 39.2, 36.4.
实施例11:{[(2,6-双(2-甲氧基苯基)苯基)-二苯基膦] (4-腈基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (583 mg, 1.0 mmol)与(4-腈基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(436 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6h. 抽去溶剂,柱层析得黄色固体0.91 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 39.9, 37.1.
实施例12:{[(2,6-双(2-甲氧基苯基)苯基)-二苯基膦] (4-硝基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基苯基膦] (583 mg, 1.0 mmol)与(4-硝基乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(457 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6h. 抽去溶剂,柱层析得黄色固体0.92 g, 产率98%.
31P NMR (162 MHz, CDCl3) δ 40.4, 37.2.
实施例13:{[(2,6-双(2,6-甲氧基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-甲氧基苯基)苯基)-二环己基膦] (546 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.95 g, 产率98%.
1H NMR (400 MHz, CDCl3) δ 11.82 (s, 1H), 7.84 (d, J = 7.9 Hz, 3H),7.71 – 7.56 (m, 1H), 7.53 – 7.32 (m, 3H), 7.27 – 7.16 (m, 4H), 7.12 (d, J =7.9 Hz, 3H), 6.99 (dt, J = 30.6, 8.2 Hz, 2H), 6.88 – 6.66 (m, 4H), 6.65 (s,2H), 3.81 – 3.66 (m, 23H), 2.54 – 2.39 (m, 2H), 2.37 (s, 2H), 2.31 (s, 4H),2.26 (d, J = 4.1 Hz, 1H), 2.15 (s, 1H), 2.10 (s, 2H), 2.05 (s, 1H), 2.04 –1.96 (m, 1H), 1.91 – 1.77 (m, 13H), 1.68 (d, J = 10.7 Hz, 3H), 1.63 – 1.36(m, 8H), 1.24 (s, 2H), 1.23 – 1.14 (m, 4H), 1.14 – 0.95 (m, 4H), 0.94 – 0.79(m, 3H), 0.72 (dtd, J = 16.9, 12.6, 10.6, 6.4 Hz, 2H).
13C NMR (101 MHz, CDCl3) δ 171.4, 139.2, 138.7, 134.9, 131.8, 131.0,128.5, 126.7, 126.2, 124.2, 123.4, 123.3, 119.5, 104.7, 77.4, 77.3, 77.1,76.7, 68.0, 56.2, 56.2, 36.0, 35.7, 29.7, 28.8, 27.1, 27.0, 26.8, 26.6, 25.9,25.6, 25.5, 25.1, 22.6, 21.3.
31P NMR (162 MHz, CDCl3) δ 63.4
实施例14:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-2-联苯基-苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-2-联苯基-苯基膦] (743 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.58 g, 产率52%.
31P NMR (162 MHz, CDCl3) δ 50.8.
实施例15:{[(2,6-双(2,6-甲基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-甲基苯基)苯基)-二环己基膦] (482 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.89 g, 产率98%.
31P NMR (162 MHz, CDCl3) δ 57.7。
实施例16:{[(2,6-双(2,6-甲基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)甲磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-甲基苯基)苯基)-二环己基膦] (482 mg, 1.0 mmol)与(乙酰氨基苯-2-基)甲磺酸钯(Ⅱ) 二聚物(336mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体0.80 g, 产率98%.
31P NMR (162 MHz, CDCl3) δ 57.7
实施例17:{[(2,6-双(2-甲氧基苯基)苯基)-二叔丁基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2-甲氧基苯基)苯基)-二叔丁基膦] (434 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.01 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 60.92, 60.94.
实施例18:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-苯基环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-苯基环己基膦] (673 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.08 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 51.5.
实施例19:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-苯基环己基膦] (乙酰氨基苯-2-基)甲磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-苯基环己基膦] (673 mg, 1.0 mmol)与(乙酰氨基苯-2-基)甲磺酸钯(Ⅱ) 二聚物(336 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.00 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 51.7.
实施例20:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基-2-二甲氨基苯基膦](乙酰氨基苯-2-基)三氟乙酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基-2-二甲氨基苯基膦] (689 mg, 1.0 mmol)与(乙酰氨基苯-2-基)三氟乙酸钯(Ⅱ) 二聚物(390 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6h. 抽去溶剂,柱层析得黄色固体0.97 g, 产率90%.
31P NMR (162 MHz, CDCl3) δ 68.3.
实施例21:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基-3,5-二双氟甲基苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-叔丁基-3,5-二双氟甲基苯基膦] (782 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.19 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 65.4.
实施例22:{[(2,6-双(2-甲氧基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2-甲氧基苯基)苯基)-二叔丁基膦] (486 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.01 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 61.7, 60.5.
实施例23:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-异丙基苯基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-异丙基苯基膦] (633 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.1 g, 产率99%.
31P NMR (162 MHz, CDCl3) δ 55.7.
实施例24:{[(2,6-双(2,6-甲基苯基)苯基)-(2’,6’-二甲氧基苯基-2-苯基)-环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-甲基苯基)苯基)-二环己基膦] (612 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ) 二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.02 g, 产率98%.
31P NMR (162 MHz, CDCl3) δ 36.6, 14.4.
实施例25:{[(2,6-双(2,6-二甲氧基苯基)苯基)-二叔丁基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-二甲氧基苯基)苯基)-二叔丁基膦] (479 mg, 1.0 mmol)与(乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)二聚物(410 mg, 0.5 mmol), 通过注射器加入10 mL四氢呋喃, 搅拌反应6 h. 抽去溶剂,柱层析得黄色固体1.5 g, 产率79%.
31P NMR (162 MHz, CDCl3) δ 60.0.
实施例26:{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (1,5-环辛二烯基钯(0)}
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (677 mg, 1.0 mmol)与[(COD)Pd(CH2TMS)2](403 mg, 1.0mmol), 通过注射器加入10 mL正戊烷, 搅拌反应48 h. 抽去溶剂,得黑色固体0.62 g, 产率69%.
31P NMR (162 MHz, CDCl3) δ 55.0, 52.7.
实施例27:双{双[(2,6-双(2,6-甲氧基苯基)苯基)-二叔丁基膦] 钯(0)}(1,5-环辛二烯)
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,6-甲氧基苯基)苯基)-二叔丁基膦] (494 mg, 1.0 mmol)与[(COD)Pd(CH2TMS)2](403 mg, 1.0 mmol), 通过注射器加入10 mL正戊烷, 搅拌反应48 h,过滤得到黑色固体 0.91 g, 产率78%.
实施例28:双{双[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] 钯(0)}(1,5-环辛二烯)
惰气气氛下, 往一个干燥的50 mL史莱克瓶中, 加入[(2,6-双(2,4,6-三异丙基苯基)苯基)-二苯基膦] (682 mg, 1.0 mmol)与[(COD)Pd(CH2TMS)2](403 mg, 1.0 mmol),通过注射器加入10 mL正戊烷, 搅拌反应48 h,过滤得到黑色固体 0.61 g, 产率70%.
实施例29-32:
[a] 在手套箱中,将 1-甲基-4-溴吡咯-2-甲酸甲酯(0.2180 g, 1.0 mmol)、 3-氨基-1,5-二甲基吡唑(0.132 g, 1.2 mmol)、 碱(1.3 mmol)、Pd络合物(0.02 mmol)、 (2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦 (13.6 mg, 0.02 mmol)、0.13 mL十二烷(GC内标)和 2 mL 四氢呋喃置于耐压管中。将该管密封并悬浮在110℃的油浴中,反应12 小时。冷至室温后反应液经硅藻土过滤(二氯甲烷),滤液减压浓缩,残余物硅胶柱层析分离提纯(石油醚:乙酸乙酯 = 5:1)。
TXPhos:(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦
实施例33-34
[a] 在手套箱中,将 1-甲基-4-溴吡咯-2-甲酸甲酯(0.2180 g, 1.0 mmol)、 5-氨基-1,1-二甲基吡唑(0.132 g, 1.2 mmol)、 碱(1.3 mmol)、Pd络合物(0.02 mmol)、 (2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦 (13.6 mg, 0.02 mmol)、0.13 mL十二烷(GC内标)和 2 mL 四氢呋喃置于耐压管中。 将该管密封并悬浮在110℃的油浴中,反应12 小时。冷至室温后反应液经硅藻土过滤(二氯甲烷),滤液减压浓缩,残余物硅胶柱层析分离提纯(石油醚:乙酸乙酯 = 5:1)。
实施例35-36
[a] 在手套箱中,将 1-甲基-4-溴吡咯-2-甲酸甲酯(0.2180 g, 1.0 mmol)、 3-氨基-1-甲基吡唑(0.1165 g, 1.2 mmol)、 碱(1.3 mmol)、Pd络合物 (0.01 mmol)、 (2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦 (6.8 mg, 0.01 mmol)、0.13 mL十二烷(GC内标)和 2 mL 四氢呋喃置于耐压管中。 将该管密封并悬浮在110℃的油浴中,反应12 小时。冷至室温后反应液经硅藻土过滤(二氯甲烷),滤液减压浓缩,残余物硅胶柱层析分离提纯(石油醚:乙酸乙酯 = 5:1)。
实施例37-41
Buchwald-Hartwig胺化偶联反应的操作说明。在压力管中, 在氮气氛围下, 将1.0 mmol芳基卤化物、1.2 mmol 胺、1.2 mmol 碳酸钾、适量的催化剂与等催化剂等单量的膦配体和75 uL的十二烷(作为GC分析的内标)溶于2.0~4.0 mL无水溶剂中。 将该管密封并置于110℃中, 反应12小时。加入二氯甲烷并硅藻土助滤;用气相色谱分析;通过(石油醚/乙酸乙酯)柱层析分离产物。
催化剂为{[(2,6-双(2,4,6-三异丙基苯基)苯基)-二环己基膦] (乙酰氨基苯-2-基)对甲基苯磺酸钯(Ⅱ)}。
实施例 42-43
Claims (6)
2.根据上述权利要求,具有通式I、II和III的钯络合物中的三联芳膦支持配体具有通式IVa和IVb的结构或它们的混合物:
其中,Ar 选自(C6-C20)芳基, 其可以有1到3个独立地选自(C1-C6)烷基、-O(C1-C6)烷氧基、-N(C1-C6)2二烷基氨基或(C6-C10)芳基的取代基,所述芳基可以有1到3个独立地选自(C1-C6)烷基、-O(C1-C6)烷氧基或-N(C1-C6)2二烷氨基的取代基; R4选自H、(C1-C6)烷基、-O(C1-C6)烷氧基或-N(C1-C6)2二烷基氨基; R5和R6各自独立地选自(C1-C10)烷基、(C3-C10)环烷基、(5-11元)杂环烷基、(C6-C20)芳基、(C4-C20)杂芳基或-CH2(C6-C10)芳亚甲基, 这里的(C3-C10)环烷基、(5-11元)杂环烷基、(C6-C20)芳基、(C4-C20)杂芳基和-CH2(C6-C10)芳亚甲基中可以有1到3个独立地选自(C1-C6)烷基或-O(C1-C6)烷氧基-N(C1-C6)2二烷氨基的取代基, 这里的杂环烷基和杂芳基中的杂原子选自O、N和S原子。
4.本发明还提供分别通过方程式1-3来制备具有通式I、II和III三类钯络合物的方法,
其中,COD为1,5-环辛二烯,L、R1、R2和X的定义同上述权利要求,R为三甲硅亚甲基氯化镁、三甲硅亚甲基溴化镁、甲基溴化镁、异丙基氯化镁、异丙基溴化镁、二乙基锌、二甲基锌、三甲基铝、三乙基铝、三异丙基铝和丁基锂中的一种或其中二种的混合物;溶剂一选自四氢呋喃、2-甲基四氢呋喃、二氧六环、叔丁基甲醚、二苯醚、甲苯、丙酮、乙腈、二氯甲烷、三氯甲烷、己烷、戊烷、石油醚中的一种或它们中的二种混合物;溶剂二选自四氢呋喃、2-甲基四氢呋喃、二氧六环、叔丁基甲醚、二苯醚、甲苯、己烷、戊烷、石油醚中的一种或它们中二种的混合物;温度一为20-120 oC;温度二为-78—60 oC。
6.本发明还提供了上述权利要求中定义的钯络合物在催化(拟)卤代芳烃与亲核试剂发生偶联反应形成C-C、C-N和C-O键反应中的用途。
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