CN106588901B - 含偕二氟亚甲基的偶氮化合物及其制备方法 - Google Patents
含偕二氟亚甲基的偶氮化合物及其制备方法 Download PDFInfo
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- CN106588901B CN106588901B CN201610934112.3A CN201610934112A CN106588901B CN 106588901 B CN106588901 B CN 106588901B CN 201610934112 A CN201610934112 A CN 201610934112A CN 106588901 B CN106588901 B CN 106588901B
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- methyl
- azo
- difluoromethyl
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- LTVOKYUPTHZZQH-UHFFFAOYSA-N difluoromethane Chemical group F[C]F LTVOKYUPTHZZQH-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- -1 aldehyde radical Chemical class 0.000 claims abstract description 58
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 26
- 239000012954 diazonium Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000004093 cyano group Chemical group *C#N 0.000 claims abstract description 5
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 5
- 150000002367 halogens Chemical class 0.000 claims abstract description 5
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 5
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 5
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 claims abstract description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 27
- 150000003839 salts Chemical class 0.000 claims description 18
- 238000007445 Chromatographic isolation Methods 0.000 claims description 17
- 238000011097 chromatography purification Methods 0.000 claims description 17
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 claims description 15
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 14
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 13
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 8
- CQLFBEKRDQMJLZ-UHFFFAOYSA-M silver acetate Chemical compound [Ag+].CC([O-])=O CQLFBEKRDQMJLZ-UHFFFAOYSA-M 0.000 claims description 6
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical class CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 claims description 5
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 4
- 239000003495 polar organic solvent Substances 0.000 claims description 4
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 4
- ZRNSSRODJSSVEJ-UHFFFAOYSA-N 2-methylpentacosane Chemical compound CCCCCCCCCCCCCCCCCCCCCCCC(C)C ZRNSSRODJSSVEJ-UHFFFAOYSA-N 0.000 claims description 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 claims description 3
- NBVXSUQYWXRMNV-UHFFFAOYSA-N monofluoromethane Natural products FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 229910002666 PdCl2 Inorganic materials 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 claims description 2
- 229910000366 copper(II) sulfate Inorganic materials 0.000 claims description 2
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 2
- PIBWKRNGBLPSSY-UHFFFAOYSA-L palladium(II) chloride Chemical compound Cl[Pd]Cl PIBWKRNGBLPSSY-UHFFFAOYSA-L 0.000 claims description 2
- WROMPOXWARCANT-UHFFFAOYSA-N tfa trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F.OC(=O)C(F)(F)F WROMPOXWARCANT-UHFFFAOYSA-N 0.000 claims description 2
- 150000002978 peroxides Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 83
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 229910052723 transition metal Inorganic materials 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract 1
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 114
- 150000000183 1,3-benzoxazoles Chemical class 0.000 description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 38
- 239000007787 solid Substances 0.000 description 38
- 125000000751 azo group Chemical group [*]N=N[*] 0.000 description 36
- 238000004566 IR spectroscopy Methods 0.000 description 19
- 238000005481 NMR spectroscopy Methods 0.000 description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 19
- 239000012043 crude product Substances 0.000 description 19
- 229910052757 nitrogen Inorganic materials 0.000 description 19
- 239000000047 product Substances 0.000 description 19
- 239000000741 silica gel Substances 0.000 description 19
- 229910002027 silica gel Inorganic materials 0.000 description 19
- 238000003756 stirring Methods 0.000 description 19
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 18
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 10
- 229910052708 sodium Inorganic materials 0.000 description 10
- 239000011734 sodium Substances 0.000 description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 9
- 239000004327 boric acid Substances 0.000 description 9
- BUUPQKDIAURBJP-UHFFFAOYSA-N sulfinic acid Chemical compound OS=O BUUPQKDIAURBJP-UHFFFAOYSA-N 0.000 description 8
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 7
- JFDZBHWFFUWGJE-UHFFFAOYSA-N benzonitrile Chemical compound N#CC1=CC=CC=C1 JFDZBHWFFUWGJE-UHFFFAOYSA-N 0.000 description 6
- 125000001028 difluoromethyl group Chemical group [H]C(F)(F)* 0.000 description 6
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 5
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 5
- 238000004440 column chromatography Methods 0.000 description 4
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 4
- 229940071536 silver acetate Drugs 0.000 description 4
- 229910001961 silver nitrate Inorganic materials 0.000 description 4
- 229910021595 Copper(I) iodide Inorganic materials 0.000 description 3
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- ZYMCBJWUWHHVRX-UHFFFAOYSA-N (4-nitrophenyl)-phenylmethanone Chemical compound C1=CC([N+](=O)[O-])=CC=C1C(=O)C1=CC=CC=C1 ZYMCBJWUWHHVRX-UHFFFAOYSA-N 0.000 description 2
- UEMGWPRHOOEKTA-UHFFFAOYSA-N 1,3-difluorobenzene Chemical compound FC1=CC=CC(F)=C1 UEMGWPRHOOEKTA-UHFFFAOYSA-N 0.000 description 2
- FNOKJRGVMILSFT-UHFFFAOYSA-N 2-methyl-3,4-dihydropyrazole Chemical compound CN1CCC=N1 FNOKJRGVMILSFT-UHFFFAOYSA-N 0.000 description 2
- 125000001255 4-fluorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1F 0.000 description 2
- 125000006306 4-iodophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1I 0.000 description 2
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 description 2
- 150000003851 azoles Chemical class 0.000 description 2
- 239000004305 biphenyl Substances 0.000 description 2
- 235000010290 biphenyl Nutrition 0.000 description 2
- LSXDOTMGLUJQCM-UHFFFAOYSA-M copper(i) iodide Chemical compound I[Cu] LSXDOTMGLUJQCM-UHFFFAOYSA-M 0.000 description 2
- GBRBMTNGQBKBQE-UHFFFAOYSA-L copper;diiodide Chemical compound I[Cu]I GBRBMTNGQBKBQE-UHFFFAOYSA-L 0.000 description 2
- FBTUAZHGMSNIIU-UHFFFAOYSA-N difluoromethanesulfinic acid;sodium Chemical compound [Na].OS(=O)C(F)F FBTUAZHGMSNIIU-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 2
- BZWKPZBXAMTXNQ-UHFFFAOYSA-N sulfurocyanidic acid Chemical compound OS(=O)(=O)C#N BZWKPZBXAMTXNQ-UHFFFAOYSA-N 0.000 description 2
- 238000010189 synthetic method Methods 0.000 description 2
- QERYCTSHXKAMIS-UHFFFAOYSA-N thiophene-2-carboxylic acid Chemical compound OC(=O)C1=CC=CS1 QERYCTSHXKAMIS-UHFFFAOYSA-N 0.000 description 2
- 150000003624 transition metals Chemical class 0.000 description 2
- NHDODQWIKUYWMW-UHFFFAOYSA-N 1-bromo-4-chlorobenzene Chemical compound ClC1=CC=C(Br)C=C1 NHDODQWIKUYWMW-UHFFFAOYSA-N 0.000 description 1
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 description 1
- DVQIBQCJGYPEAT-UHFFFAOYSA-N 4-nitrobenzenediazonium borate Chemical compound B([O-])([O-])[O-].[N+](=O)([O-])C1=CC=C(C=C1)[N+]#N.[N+](=O)([O-])C1=CC=C(C=C1)[N+]#N.[N+](=O)([O-])C1=CC=C(C=C1)[N+]#N DVQIBQCJGYPEAT-UHFFFAOYSA-N 0.000 description 1
- CQHNJWAZNZBMMO-UHFFFAOYSA-N B(O)(O)O.IC1=CC=CC=C1 Chemical compound B(O)(O)O.IC1=CC=CC=C1 CQHNJWAZNZBMMO-UHFFFAOYSA-N 0.000 description 1
- 102100022365 NAD(P)H dehydrogenase [quinone] 1 Human genes 0.000 description 1
- ZCQWOFVYLHDMMC-UHFFFAOYSA-N Oxazole Chemical compound C1=COC=N1 ZCQWOFVYLHDMMC-UHFFFAOYSA-N 0.000 description 1
- 101150003085 Pdcl gene Proteins 0.000 description 1
- 238000003833 Wallach reaction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QYUQPQJJMXISLT-UHFFFAOYSA-N anisole;boric acid Chemical compound OB(O)O.COC1=CC=CC=C1 QYUQPQJJMXISLT-UHFFFAOYSA-N 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006149 azo coupling reaction Methods 0.000 description 1
- 108010066657 azoreductase Proteins 0.000 description 1
- 125000005605 benzo group Chemical group 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- BIVHHENFZSOWCE-UHFFFAOYSA-N boric acid;bromobenzene Chemical compound OB(O)O.BrC1=CC=CC=C1 BIVHHENFZSOWCE-UHFFFAOYSA-N 0.000 description 1
- XLGLMVCAOMQNJT-UHFFFAOYSA-N boric acid;chlorobenzene Chemical compound OB(O)O.ClC1=CC=CC=C1 XLGLMVCAOMQNJT-UHFFFAOYSA-N 0.000 description 1
- LBIIAJYHRQDSPB-UHFFFAOYSA-N boric acid;fluorobenzene Chemical compound OB(O)O.FC1=CC=CC=C1 LBIIAJYHRQDSPB-UHFFFAOYSA-N 0.000 description 1
- XIXMDRKCCYQJGY-UHFFFAOYSA-N boric acid;trifluoromethylbenzene Chemical compound OB(O)O.FC(F)(F)C1=CC=CC=C1 XIXMDRKCCYQJGY-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007697 cis-trans-isomerization reaction Methods 0.000 description 1
- 238000006880 cross-coupling reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-O diazynium Chemical compound [NH+]#N IJGRMHOSHXDMSA-UHFFFAOYSA-O 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- RHDUOFVTCTUTFX-UHFFFAOYSA-N methanesulfinic acid;sodium Chemical compound [Na].CS(O)=O RHDUOFVTCTUTFX-UHFFFAOYSA-N 0.000 description 1
- MSXGYLYIPDHPFO-UHFFFAOYSA-N n-(1h-benzimidazol-2-ylmethyl)-2,3,4,5,6-pentafluorobenzamide Chemical compound FC1=C(F)C(F)=C(F)C(F)=C1C(=O)NCC1=NC2=CC=CC=C2N1 MSXGYLYIPDHPFO-UHFFFAOYSA-N 0.000 description 1
- RSUVAZXFONMBQO-UHFFFAOYSA-N n-(3,4-difluorophenyl)-3h-benzimidazole-5-carboxamide Chemical compound C1=C(F)C(F)=CC=C1NC(=O)C1=CC=C(N=CN2)C2=C1 RSUVAZXFONMBQO-UHFFFAOYSA-N 0.000 description 1
- 229910017464 nitrogen compound Inorganic materials 0.000 description 1
- 150000002830 nitrogen compounds Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000001766 physiological effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D263/00—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings
- C07D263/52—Heterocyclic compounds containing 1,3-oxazole or hydrogenated 1,3-oxazole rings condensed with carbocyclic rings or ring systems
- C07D263/54—Benzoxazoles; Hydrogenated benzoxazoles
- C07D263/56—Benzoxazoles; Hydrogenated benzoxazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached in position 2
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D277/00—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings
- C07D277/60—Heterocyclic compounds containing 1,3-thiazole or hydrogenated 1,3-thiazole rings condensed with carbocyclic rings or ring systems
- C07D277/62—Benzothiazoles
- C07D277/64—Benzothiazoles with only hydrocarbon or substituted hydrocarbon radicals attached in position 2
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
本发明涉及含偕二氟亚甲基的偶氮化合物及其制备方法。该类化合物的结构式为:其中,X为:O、S、N‑Bu;Ar为:或
Description
技术领域
本发明涉及一系列含偕二氟亚甲基的偶氮化合物及其制备方法。
背景技术
偶氮类化合物是指在分子结构中包含偶氮基团(-N=N-)的有机化合物。芳香族偶氮化合物通常在紫外和可见光区有较强吸收,具有特殊光学性能,可作为染料或颜料应用于纺织、食品添加剂、彩色液晶显示和彩色摄影胶片中。脂肪族偶氮类化合物对光、热等的相对比较敏感,通常用作光致刻蚀剂或光引发剂。因为偶氮化合物-N=N-具有顺反异构化的性质而具有光致变色的特性,使偶氮化合物具有特异的光、电性质,可以作为光信息存储材料,因此偶氮类化合物已成为光电功能材料领域不可或缺的材料之一。另外,偶氮化合物具有非线性光学性质,和超高存储密度以及非破坏性信息读出等特性。偶氮类化合物还可以作为有机合成中的亲电试剂和亲双烯体去实现化学的转化。最新的研究还表明:偶氮基团还可以用来保护活性药物中的氨基,以保证药物在到达病灶前是稳定的,而一旦到达作用位点,利用偶氮还原酶专一性还原为活性的含氨基的药物。由于偶氮化合物的各种优异的性能和广阔的应用前景,其合成方法也成为了有机合成化学家不断探索及研究的重点。制备偶氮化合物的最经典方法是重氮偶合反应、米尔斯反应和瓦拉赫反应。另一方面,在活性有机分子中引入含氟基团,会使其物理性质、化学性质以及生理活性一般比其母体分子都有明显的提升,尤其可改善脂肪族偶氮化合物对光、热等的敏感性,使得偶氮化合物的稳定性大大增加。然而,迄今为止,含偕二氟亚甲基的偶氮化合物及其合成方法尚未见报导。
参考文献如下:
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(5)For studies on aliphatic azo compounds and their thermal andphotochemical decomposition into radicals,see:(a)Konig,T.In Free Radicals;Kochi,J.K.,Ed.;Wiley:New York,1973;Vol.I,113.(b)Engel,P.S.Chem.Rev.1980,80,99-150.(c)Engel,P.S.;Pan,L.;Ying,Y.;Alemany,L.B.J.Am.Chem.Soc.2001,123, 3706-3715.
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发明内容
本发明的目的之一在于提供一系列含偕二氟亚甲基的偶氮化合物。
本发明的目的之二在于提供含偕二氟亚甲基偶氮化合物制备的方法,该方法实现了在金属盐促进的条件下使用二氟甲基亚磺酸钠与芳香族重氮盐交叉偶联反应的方法。
为达到上述目的,本发明采用如下反应方程式:
其中,X为:O、S、N-Bu。
当Ar为:
(其中R为:醛基、卤素、羰基乙酯、氰基、硝基、三氟甲基或甲基)。
上述反应式采用的机理为:1,3-苯并唑类-2-二氟甲基亚磺酸盐试剂在过渡金属和TBHP作用下,失去一电子得到1,3-苯并唑类-2-二氟甲基亚磺酸自由基,再脱去一分子的SO2,得到1,3-苯并唑类-2-二氟甲基自由基。最后该自由基和四氟硼酸芳香族重氮盐反应,得到芳香重氮正离子,最后还原得到最终的产物。
根据上述反应机理,本发明采用如下技术方案:
一类含偕二氟亚甲基偶氮化合物,其特征在于该类化合物的结构式为:
其中,X为:O、S、N-Bu-n;
Ar为:其中R为:醛基、卤素、羰基乙酯、氰基、硝基、三氟甲基或甲基。
一种制备上述的含偕二氟亚甲基偶氮化合物的制备方法,其特征在于该方法的具体步骤为:将1,3-苯并二唑-2-二氟甲基亚磺酸钠、四氟化硼芳香族重氮盐、过氧叔丁醇TBHP按摩尔比(1~3):(1~5):(0.1~10)溶于极性有机溶剂中,在催化量的金属盐和酸的促进下,在0~100℃条件下反应0.5~24小时,经柱层析分离纯化,得到产物含偕二氟亚甲基偶氮化合物;所述的1,3-苯并二唑-2-二氟甲基亚磺酸钠试剂的结构为:所述的四氟化硼芳香族重氮盐结构为:Ar-N2BF4。
上述的极性有机溶剂为:二氯甲烷(DCM)、二甲基甲酰胺、四氢呋喃、二氯乙烷或二氧六环。
上述的金属盐为:CuI,、CuI2、CuSO4、Cu(OAc)2、AgNO3、AgOAc、PdCl2、RhCl2或ZnCl2。
上述的酸为:盐酸、醋酸、对甲苯磺酸TsOH或三氟乙酸TFA。
本发明利用1,3-苯并唑类-2-二氟甲基亚磺酸钠试剂,在过渡金属的促进下,与芳香族重氮盐反应制得一系列含偕氟亚甲基偶氮化合物。此反应条件温和,操作简便,得率较高,对活性基团具有很好的耐受性。
本发明用1,3-苯并唑类-2-二氟甲基亚磺酸钠和四氟硼酸芳香族重氮盐在过渡金属和TBHP的作用下发生反应,生成一系列偕二氟亚甲基偶氮化合物。本发明原料易得,操作简便,反应条件温和,对活性基团具有很好的耐受性,产率在10-97%。
本发明的化合物的物性参数如下:
1.4-((苯并噁唑-2-二氟甲基)偶氮基)苯甲酸乙酯(3a):
分子式:C17H13F2N3O3
结构式:
中文命名:4-((苯并噁唑-2-二氟甲基)偶氮基)苯甲酸乙酯
英文命名:Ethyl 4-((benzo[d]oxazol-2-difluoromethyl)diazenyl)benzoate
分子量:345.09
外观:亮棕色固体
熔点:101-104℃
核磁共振氢谱(500MHz,CDCl3):δ:8.16(d,J=8.5Hz,2H),7.91(d,J=8.5Hz,2H),7.84(d,J=8.5Hz,1H),7.61(d,J=8.0Hz,1H),7.48-7.41(m,2H),4.39(q,J=7.1Hz,2H),1.40(t,J=7.1Hz,3H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.23(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:165.4,154.8(t,2JC-F=38.0Hz),152.6,151.0,140.0,135.1,130.7,127.2,125.6,123.9,121.6,117.1(t,1JC-F=250.0Hz),111.6,61.7,14.3;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3012,1717,1684,1605,1456,1279,1099,1041,863,750.
2.1-(4-((苯并噁唑-2-二氟甲基)偶氮基)苯基)乙酮(3b):
分子式:C16H11F2N3O2
结构式:
中文命名:1-(4-((苯并噁唑-2-二氟甲基)偶氮基)苯基)乙酮
英文命名:1-(4-((benzo[d]oxazol-2-yldifluoromethyl)diazenyl)phenyl)ethan-1-one
分子量:315.08
外观:亮黄色固体
熔点:119-120℃
核磁共振氢谱(500MHz,CDCl3):δ:8.04(d,J=8.5Hz,2H),7.91(d,J=8.5Hz,2H),7.81(d,J=7.7Hz,1H),7.59(d,J=8.0Hz,1H),7.42(dt,J=21.7,7.9Hz,2H),2.62(s,3H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.19(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:197.0,154.7(t,2JC-F=38.0Hz),152.4,150.9,140.8,139.9,129.4,127.2,125.6,124.2,121.5,117.1(t,1JC-F=250.1Hz),111.5,26.9;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3088,1687,1608,1450,1359,1258,1117,1049,855,756.
3.(2-((苯并噁唑-2-二氟甲基)偶氮基)苯基)(苯基)甲酮(3c):
分子式:C21H13F2N3O2
结构式:
中文命名:(2-((苯并噁唑-2-重氮基)偶氮基)苯基)(苯基)甲酮
英文命:(2-((benzo[d]oxazol-2-yldifluoromethyl)diazenyl)phenyl)(phenyl)methanone
分子量:377.10
外观:黄色固体
熔点:107-111℃
核磁共振氢谱(500MHz,CDCl3):δ:7.85-7.83(m,1H),7.67-7.56(m,3H),7.50-7.48(m,1H),7.39-7.32(m,5H),7.23-7.20(m,1H),7.07-7.03(m,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.59(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:195.3,154.4(t,2JC-F=38.1Hz),150.6,147.3,140.6,139.5,136.9,134.4,133.1,130.8,129.1,128.7,128.1,126.7,125.1,121.3,117.7,117.1(t,1JC-F=248.2Hz),111.4;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3062,1670,1511,1244,1120,1035,757.
4.4-((苯并噁唑-2-二氟甲基)偶氮基)苄腈(3d):
分子式:C15H8F2N4O
结构式:
中文命名:4-((苯并噁唑-2-二氟甲基)偶氮基)苄腈
英文命名:4-((benzo[d]oxazol-2-yldifluoromethyl)diazenyl)benzonitrile
分子量:298.07
外观:亮黄色固体
熔点:165-166℃
核磁共振氢谱(500MHz,CDCl3):δ:7.97(d,J=8.5Hz,2H),7.83(t,J=8.9Hz,3H),7.63(d,J=8.0Hz,1H),7.46(dt,J=23.8,7.4Hz,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.44(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:154.4(t,2JC-F=37.8Hz),152.0,150.9,139.9,133.5,127.4,125.7,124.6,121.7,117.7,117.3,117.0(t,1JC-F=251.3Hz),115.0;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3094,2227,1611,1521,1303,1121,853,752.
5.2-(二氟((4-硝基苯基)偶氮基)甲基)苯并噁唑(3e):
分子式:C14H8F2N4O3
结构式:
中文命名:2-(二氟((4-硝基苯基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((4-nitrophenyl)diazenyl)methyl)benzo[d]oxazole
分子量:318.06
外观:黄色固体
熔点:177-179℃
核磁共振氢谱(500MHz,CDCl3):δ:8.38(d,J=9.0Hz,2H),8.05(d,J=9.0Hz,2H),7.86(d,J=7.7Hz,1H),7.64(d,J=8.2Hz,1H),7.52-7.44(m,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.51(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:154.3(t,2JC-F=37.6Hz),153.1,150.9,150.6,139.9,127.3,125.7,124.8,121.6,116.8(t,1JC-F=251.6Hz),111.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3069,1607,1528,1116,1044,807,754.
6.2-(二氟((4-(三氟甲基)苯基)偶氮基)甲基)苯并噁唑(3f):
分子式:C15H8F5N3O
结构式:
中文命名:2-(二氟((4-(三氟甲基)苯基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((4-(trifluoromethyl)phenyl)diazenyl)methyl)benzo[d]oxazole
分子量:341.06
外观:棕色固体
熔点:121-124℃
核磁共振氢谱(500MHz,CDCl3):δ:7.99(d,J=8.2Hz,2H),7.86(d,J=7.8Hz,1H),7.78(d,J=8.3Hz,2H),7.63(d,J=8.0Hz,1H),7.46(dt,J=21.5,7.3Hz,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-63.10,(s,3F);-90.41(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:154.7(t,2JC-F=37.8Hz),152.1,151.0,140.0,135.5(q,2JC-F=33.0Hz),127.3,126.7(q,3JC-F=3.7Hz),125.7,124.4,121.7,117.1(t,1JC-F=250.6Hz),111.6;红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3068,1687,1611,1454,1325,1172,1112,855,744.
7.2-(二氟((4-氟苯基)偶氮基)甲基)苯并噁唑(3g):
分子式:C14H8F3N3O
结构式:
中文命名:2-(二氟((4-氟苯基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((4-fluorophenyl)diazenyl)methyl)benzo[d]oxazole
分子量:291.06
外观:亮黄色固体
熔点:72-75℃
核磁共振氢谱(500MHz,CDCl3)δ:7.94-7.90(m,2H),7.86-7.84(m,1H),7.62-7.61(m,1H),7.49-7.41(m,2H),7.19-7.16(m,2H);
核磁共振氟谱:(470MHz,CDCl3)δ:-89.85,(s,2F),103.21(s,F);
核磁共振碳谱:(125MHz,CDCl3)δ:166.4(d,1J=250.0Hz),155.2(t,2J=37.5Hz),151.0,147.0,140.0,127.2,126.8(d,3JC-F=8.8Hz),125.6,121.6,117.3(t,1JC-F=249.9Hz),116.6(d,2J=23.9Hz),111.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3068,1593,1509,1453,1306,1235,1118,850,747.
8.2-(((2,4-二氟苯基)偶氮基)二氟甲基)苯并噁唑(3h):
分子式:C14H7F4N3O
结构式:
中文命名:2-(((2,4-二氟苯基)二氮烯基)偶氮基)苯并噁唑
英文名:2-(((2,4-difluorophenyl)diazenyl)difluoromethyl)benzo[d]oxazole
分子量:309.05
外观:黄色固体
熔点:58-59℃
核磁共振氢谱(500MHz,CDCl3):δ:7.82(d,J=7.9Hz,1H),7.74-7.67(m,2H),7.61-7.59(m,1H),7.47-7.40(m,2H),7.30-7.28(m,1H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.07(s,2F),-127.18(s,F),-134.11(s,F);
核磁共振碳谱(125MHz,CDCl3):δ:154.7(t,2JC-F=38.1Hz),154.2(dd,1JC-F=245.0,3JC-F=13.7Hz),150.9(dd,1JC-F=251.3Hz,3JC-F=13.7Hz),150.8,146.8(t,J=4.1Hz),139.9,127.2,125.5,123.8(dd,J=2.5,7.0Hz),121.5,117.9(d,2JC-F=18.7Hz),117.0(t,1JC-F=249.9Hz),111.4,111.0(d,2JC-F=18.7Hz);
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3068,1593,1509,1453,1306,1235,1118,850,747.
9.2-(((4-氯苯基)偶氮基)二氟甲基)苯并噁唑(3i):
分子式:C14H8ClF2N3O
结构式:
中文命名:2-(((4-氯苯基)偶氮基)二氟甲基)苯并噁唑
英文命名:2-(((4-chlorophenyl)diazenyl)difluoromethyl)benzo[d]oxazole
分子量:307.03
外观:黄色固体
熔点:124-126℃
核磁共振氢谱(500MHz,CDCl3):δ:7.84(t,J=9.1Hz,3H),7.62(d,J=8.0Hz,1H),7.48-7.42(m,4H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.98(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:155.1(t,2JC-F=37.8Hz),151.0,148.8,140.8,140.0,129.8,127.2,125.6,125.5,121.6,117.2(t,1JC-F=249.3Hz),111.6;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3092,1686,1511,1401,1181,836,749
10.2-(((4-溴苯基)二氮烯基)偶氮基)苯并噁唑(3j):
分子式:C14H8BrF2N3O
结构式:
中文命名:2-(((4-溴苯基)偶氮基)二氟甲基)苯并噁唑
英文命名:2-(((4-bromophenyl)diazenyl)difluoromethyl)benzo[d]oxazole
分子量:350.98
外观:棕色固体
熔点:146-148℃
核磁共振氢谱(500MHz,CDCl3):δ:7.84(d,J=7.5Hz,1H),7.74(d,J=8.8Hz,2H),7.66-7.57(m,3H),7.43(dtd,J=19.6,7.5,1.3Hz,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.95(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:155.0(t,2JC-F=38.3Hz),150.9,149.1,140.0,132.8,129.4,127.9,127.1,125.6,121.6,117.2(t,1JC-F=249.5Hz),111.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3090,1683 1504,1400,1301,1183,1107,840,748.
11.2-(二氟((4-碘苯基)偶氮基)甲基)苯并噁唑(3k):
分子式:C14H8F2IN3O
结构式:
中文命名:2-(二氟((4-碘苯基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((4-iodophenyl)diazenyl)methyl)benzo[d]oxazole
分子量:398.97
外观:黄色固体
熔点:156-160℃
核磁共振氢谱(500MHz,CDCl3):δ:7.85(d,J=7.4Hz,3H),7.59(t,J=10.6Hz,3H),7.46-7.42(m,2H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.99(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:155.0(t,2JC-F=38.3Hz),150.9,149.7,140.0,138.8,127.2,125.6,125.5,121.6,117.2(t,1JC-F=249.6Hz),111.5,102.3;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3085,1571,1502,1301,1107,1042,837,750,506.
12.2-(((4-溴-2-氯苯基)偶氮基)二氟甲基)苯并噁唑(3l):
分子式:C14H7BrClF2N3O
结构式:
中文命名:2-(((4-溴-2-氯苯基)偶氮基)二氟甲基)苯并噁唑
英文命名:2-(((4-bromo-2-chlorophenyl)diazenyl)difluoromethyl)benzo[d]oxazole
分子量:384.94
外观:亮黄色固体
熔点:113-114℃
核磁共振氢谱(500MHz,CDCl3):δ:7.83(d,J=7.2Hz,1H),7.64(d,J=2.0Hz,1H),7.58(dd,J=15.3,8.3Hz,2H),7.44(ddd,J=8.2,4.5,1.8Hz,2H),7.40(td,J=7.7,1.2Hz,1H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.01(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:154.7(t,2JC-F=38.0Hz),150.9,145.4,139.9,138.7,133.8,131.0,129.5,127.2,125.5,121.5,118.7,116.3(t,1JC-F=250.2Hz),111.4;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3078,1608,1567,1508,1381,1300,1112,1040,862,823,746,555.
13.2-(二氟((4'-氟-[1,1'-联苯]-4-基)偶氮基)甲基)苯并噁唑(3m)
分子式:C20H12F3N3O
结构式:
中文命名:2-(二氟((4'-氟-[1,1'-联苯]-4-基)偶氮基)甲基)苯并噁唑
英文名:2-(difluoro((4'-fluoro-[1,1'-biphenyl]-4-yl)diazenyl)methyl)benzo[d]oxazole
分子量:367.09
外观:亮黄色固体
熔点:148-150℃
核磁共振氢谱(500MHz,CDCl3):δ:7.95(d,J=8.5Hz,2H),7.86(d,J=8.4Hz,1H),7.66(d,J=8.5Hz,2H),7.63(d,J=7.7Hz,1H),7.59(dd,J=8.7,5.3Hz,2H),7.49-7.42(m,2H),7.15(t,J=8.6Hz,2H);
核磁共振氟谱(470MHz,CDCl3):δ-89.67(s,2F),-112.90--113.25(m,F);
核磁共振碳谱(125MHz,CDCl3):δ:163.3(d,1J=250.0Hz),155.3(t,2JC-F=38.6Hz),151.0, 149.5,146.0,140.1,135.6,129.1(d,3J=8.3Hz),127.8,127.1,125.5,124.9,121.6,117.4(t,1JC-F=248.5Hz),116.2(d,2J=21.7Hz),111.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3069,1600,1497,1299,1175,1105,823,746.
14.2-(二氟(苯基偶氮基)甲基)苯并噁唑(3n):
分子式:C14H9F2N3O
结构式:
中文命名:2-(二氟(苯基偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro(phenyldiazenyl)methyl)benzo[d]oxazole
分子量:273.07
外观:亮棕色固体
熔点:50-55℃
核磁共振氢谱(500MHz,CDCl3):δ:7.84(dtd,J=6.8,3.6,1.1Hz,3H),7.62-7.56(m,1H),7.56-7.49(m,1H),7.48-7.42(m,3H),7.42-7.36(m,1H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.83(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:155.2(t,2JC-F=38.4Hz),150.9,150.3,140.0,134.3,129.3,127.0,125.4,124.12,121.5,117.3(t,1JC-F=248.6Hz),111.4;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3063,1612,1512,1452,1304,1119,751.
15.2-(二氟(对-甲苯基偶氮基)甲基)苯并噁唑(3o):
分子式:C15H11F2N3O
结构式:
中文命名:2-(二氟(对-甲苯基偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro(p-tolyldiazenyl)methyl)benzo[d]oxazole
分子量:287.09
外观:棕色固体
熔点:176-180℃
核磁共振氢谱(500MHz,CDCl3):δ:7.79(d,J=7.7Hz,1H),7.69(d,J=8.1Hz,2H),7.54(d,J=8.1Hz,1H),7.37(dt,J=15.7,7.4Hz,2H),7.19(d,J=8.1Hz,2H),2.33(s,3H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.32(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:155.3(t,2JC-F=38.8Hz),150.7,148.4,145.6,139.8,129.9,126.9,125.3,124.1,121.2,117.4(t,1JC-F=247.7Hz),111.3,21.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3063,2920,1682,1556,1460,1278,1147,1107,824,744.
16.2-(二氟((4-甲氧基苯基)偶氮基)甲基)苯并噁唑(3p):
分子式:C15H11F2N3O2
结构式:
中文命名:2-(二氟((4-甲氧基苯基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((4-methoxyphenyl)diazenyl)methyl)benzo[d]oxazole
分子量:484.28
外观:棕色固体
熔点:81-83℃
核磁共振氢谱(500MHz,CDCl3):δ:8.18-8.14(m,3H),7.92(d,J=8.1Hz,1H),7.77-7.71(m,2H),7.26(d,J=9.1Hz,2H),4.17(s,3H);
核磁共振氟谱(470MHz,CDCl3)δ:-89.05(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:164.8,155.7(t,2JC-F=39.3Hz),150.9,144.7,139.9,126.9,126.7,125.4,121.4,117.5(t,1JC-F=246.7Hz),114.5,111.4,55.8;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3053,2845,1684,1598,1506,1262,1105,1045,837,746.
17.2-(二氟((2-氯-3-吡啶基)偶氮基)甲基)苯并噁唑(3q):
分子式:C13H7ClF2N4O
结构式:
中文命名:2-(二氟((2-氯-3-吡啶基)偶氮基)甲基)苯并噁唑
英文命名:2-(difluoro((2-Chloro-3-pyridinyl)diazenyl)methyl)benzo[d]oxazole
分子量:308.03
外观:棕色固体
熔点:77.1℃
核磁共振氢谱(500MHz,CDCl3):δ:8.59(dd,J=4.7,1.9Hz,1H),8.01(dd,J=8.0,1.9Hz,1H),7.84(d,J=7.8Hz,1H),7.63(d,J=8.0Hz,1H),7.49(td,J=7.8,1.3Hz,1H),7.44(td,J=7.8,1.2Hz,1H),7.40(dd,J=8.0,4.7Hz,1H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.37(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:154.4(t,2JC-F=37.6Hz),154.4,153.7,151.0,143.0,139.9,127.4,126.3,125.7,123.4,121.6,117.1(t,1JC-F=252.0Hz),111.5;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3042,1790,1614,1566,1511,1414,1303,1125,1050,814,744,697;
18.甲基-3-((苯并噁唑-2-二氟甲基)偶氮基)噻吩-2-羧酸酯(3r):
分子式:C14H9F2N3O3S
结构式:
中文命名:甲基-3-((苯并噁唑-2-二氟甲基)偶氮基)噻吩-2-羧酸酯
英文命名:Methyl 2-(benzothiazol-2-yldifluoromethyl)benzoate
分子量:337.03
外观:棕色固体
熔点:150.2℃
核磁共振氢谱(500MHz,CDCl3):δ:7.86(d,J=7.3Hz,1H),7.63(d,J=7.8Hz,1H),7.49(d,J=5.5Hz,1H),7.45(ddd,J=12.4,7.8,1.3Hz,2H),7.40(d,J=5.5Hz,1H),3.30(s,3H);
核磁共振氟谱(470MHz,CDCl3):δ:-90.03(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:161.2,155.3(t,2JC-F=37.8Hz),152.1,151.0,140.1,138.0,130.6,127.0,125.5,121.5,118.1(t,1JC-F=248.2Hz),117.8,111.5,52.3;红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3110,1617,1531,1442,1259,1184,1119,1050,789,749;
19.2-(二氟((1-甲基-4,5-二氢-1H-吡唑)-3-偶氮基)甲基)苯并噁唑(3s):
分子式:C14H9F2N3O3S
结构式:
中文命名:2-(二氟((1-甲基-4,5-二氢-1H-吡唑)-3-偶氮基)甲基)苯并噁唑
英文命名:2-(Difluoro((1-methyl-4,5-dihydro-1H-pyrazol-3-yl)diazenyl)methyl)benzo[d]oxazole分子量:199.07
外观:棕色固体
熔点:115.3℃
核磁共振氢谱(500MHz,CDCl3):δ:7.80(d,J=7.6Hz,1H),7.57(d,J=7.9Hz,1H),7.45-7.37(m,3H),6.67(d,J=2.5Hz,1H),3.97(s,3H);
核磁共振氟谱(470MHz,CDCl3):δ:-89.35(s,2F);
核磁共振碳谱(125MHz,CDCl3):δ:161.5,155.2(t,2JC-F=38.5Hz),151.0,140.0,132.7,127.0,125.4,121.5,117.(t,1JC-F=247.5Hz),111.6,97.8,40.1;
红外光谱(采用Perkin-Elmer983G红外光谱仪,KBr压片法):v:3125,1619,1511,1449,1365,1137,1076,846,756;
具体实施方式
实施例一:氮气保护下,在装有磁子的10ml反应管中依次加入硫酸铜(0.05mmol),TsOH(0.35mmol),四氟硼酸-4-甲氧基苯基重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),DCM 2.5ml,50℃下反应搅拌逐滴加入TBHP(4.0mmol)。10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3p,产率为88%。
实施例二:氮气保护下,在装有磁子的10ml反应管中依次加入碘化亚铜(0.07mmol),三氟乙酸(0.25mmol),四氟硼酸-4-乙酮苯基重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),Dioxane 4ml,20℃下反应搅拌逐滴加入TBHP(3.5mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3b,产率为86%。
实施例三:氮气保护下,在装有磁子的20ml反应管中依次加入醋酸银(0.5mmol),盐酸(2.5mmol),四氟硼酸-4-苯甲酮苯基重氮盐(1.0mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(3.5mmol),二甲基甲酰胺6.0ml,室温下反应搅拌逐滴加入TBHP(6mmol)。10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3c,产率为23%。
实施例四:氮气保护下,在装有磁子的10ml反应管中依次加入PdCl2(0.05mmol),三氟乙酸(0.25mmol),四氟硼酸-4-氰基苯基重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),DCM 3.0ml,室温下反应搅拌逐滴加入TBHP(4.5mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3d,产率为68%。
实施例五:氮气保护下,在装有磁子的10ml反应管中依次加入碘化铜(0.05mmol),对甲苯磺酸(0.3mmol),四氟硼酸-4-硝基苯基重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.4mmol),DCM 2ml,20℃下反应搅拌逐滴加入TBHP(3mmol)。12h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3e,产率为75%。
实施例六:氮气保护下,在装有磁子的10ml反应管中依次加入RhCl2(0.04mmol),醋酸(0.24mmol),四氟硼酸-4-三氟甲基苯基重氮盐(0.3mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.5mmol),四氢呋喃2.5ml,室温下反应搅拌逐滴加入TBHP(2.8mmol)。停止反应后,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3f,产率为45%。
实施例七:氮气保护下,在装有磁子的20ml反应管中依次加入硫酸铜(0.1mmol),对甲苯磺酸(0.6mmol),四氟硼酸-4-氟苯基重氮盐(1.0mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(3.5mmol),Dioxane 4.5ml,室温下反应搅拌逐滴加入TBHP(7.0mmol)。10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3g,产率为48%。
实施例八:氮气保护下,在装有磁子的10ml反应管中依次加入醋酸银(0.05mmol),三氟乙酸(0.4mmol),四氟硼酸-2,4-二氟苯基重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.4mmol),DCM 2ml,30℃下反应搅拌逐滴加入TBHP(3.5mmol)。10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3h,产率为64%。
实施例九:氮气保护下,在装有磁子的10ml反应管中依次加入硫氰酸亚铜(0.06mmol),对甲苯磺酸(0.36mmol),四氟硼酸-4-氯苯基重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),二氯乙烷3ml,室温下反应搅拌逐滴加入TBHP(3.0mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3i,产率为55%。
实施例十:氮气保护下,在装有磁子的10ml反应管中依次加入醋酸银(0.05mmol),对甲苯磺酸(0.25mmol),四氟硼酸-4-溴苯基重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.9mmol),DCM 2.5ml,20℃下反应搅拌逐滴加入TBHP(3.7mmol)。停止反应后,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3j,产率为71%。
实施例十一:氮气保护下,在装有磁子的10ml反应管中依次加入硝酸银(0.05mmol),三氟乙酸(0.6mmol),四氟硼酸-4-碘苯基重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),四氢呋喃3.0ml,室温下反应搅拌逐滴加入TBHP(4.0mmol)。10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3k,产率为56%。
实施例十二:氮气保护下,在装有磁子的10ml反应管中依次加入碘化铜(0.07mmol),盐酸(0.35mmol),四氟硼酸-2-氯-4-溴苯基重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),二氯乙烷2ml,20℃下反应搅拌逐滴加入TBHP(3.5mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3l,产率为79%。
实施例十三:氮气保护下,在装有磁子的10ml反应管中依次加入硝酸银(0.06mmol),TFA(0.5mmol),四氟硼酸-4-氟联苯重氮盐(0.6mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.0mmol),DCM 4.0ml,室温下反应搅拌逐滴加入TBHP(4.1mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3m,产率为69%。
实施例十四:氮气保护下,在装有磁子的10ml反应管中依次加入碘化亚铜(0.08mmol),TAF(0.45mmol),四氟硼酸苯基重氮盐(0.7mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(2.5mmol),四氢呋喃3.5ml,室温下反应搅拌逐滴加入TBHP(3.5mmol)。12h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3n,产率为45%。
实施例十五:氮气保护下,在装有磁子的25ml反应管中依次加入醋酸银(0.5mmol),TsOH(3.0mmol),四氟硼酸-4-甲基苯基重氮盐(1.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(5.0mmol),二氧六环10.0ml,室温下反应搅拌逐滴加入TBHP(9.2mmol)。8h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3o,产率为76%。
实施例十六:氮气保护下,在装有磁子的10ml反应管中依次加入硝酸银(0.05mmol),对甲苯磺酸(0.3mmol),四氟硼酸-4-甲酸乙酯苯基重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.6mmol),DCM 2ml,30℃下反应搅拌逐滴加入TBHP(4.0mmol),10h后停止反应,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3a,产率为75%。
实施例十七:氮气保护下,在装有磁子的10ml反应管中依次加入氯化锌(0.05mmol),TsOH(0.25mmol),四氟硼酸-2-氯吡啶重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.5mmol),二氯乙烷3.0ml,30℃下反应搅拌逐滴加入TBHP(3mmol)。停止反应后,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3q,产率为21%。
实施例十八:氮气保护下,在装有磁子的10ml反应管中依次加入硝酸银(0.05mmol),TFA(0.25mmol),四氟硼酸-2-甲酸甲酯噻吩重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.5mmol),二氯甲烷2.5ml,室温下反应搅拌逐滴加入TBHP(3mmol)。停止反应后,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3r,产率为80%。
实施例十九:氮气保护下,在装有磁子的10ml反应管中依次加入硫氰酸亚铜(0.05mmol),TsOH(0.25mmol),四氟硼酸-1-甲基-4,5-二氢-1H-吡唑重氮盐(0.5mmol),1,3-苯并噁唑-2-二氟甲基亚磺酸钠(1.5mmol),二氧六环2ml,室温下反应搅拌逐滴加入TBHP(3mmol)。停止反应后,将反应液中的固体经过硅胶短柱过滤,浓缩。粗产品柱层析分离纯化,得到目标产物3s,产率为60%。
Claims (3)
1.一种含偕二氟亚甲基偶氮化合物的制备方法,其特征在于:该方法的具体步骤为:将1,3-苯并二唑-2-二氟甲基亚磺酸钠、四氟化硼芳香族重氮盐、过氧叔丁醇TBHP按摩尔比(1~3):(1~5):(0.1~10)溶于极性有机溶剂中,在催化量的金属盐和酸的促进下,在0~100℃条件下反应0.5~24小时,经柱层析分离纯化,得到产物含偕二氟亚甲基偶氮化合物;
所述的1,3-苯并二唑-2-二氟甲基亚磺酸钠试剂的结构为:
所述的四氟化硼芳香族重氮盐结构为:Ar-N2BF4,X为:O、S、N-Bu-n;Ar为: 其中R为:醛基、卤素、羰基乙酯、氰基、硝基、三氟甲基或甲基;所述金属盐采用CuI,、CuI2、CuSO4、Cu(OAc)2、AgNO3、AgOAc、PdCl2、RhCl2或ZnCl2;
所制备的含偕二氟亚甲基偶氮化合物的结构式为:
其中,X为:O、S、N-Bu-n;
Ar为:其中R为:醛基、卤素、-COOCH2CH3、氰基、硝基、三氟甲基或甲基。
2.根据权利要求1所述的方法,其特征在于:所述的极性有机溶剂为:二氯甲烷(DCM)、二甲基甲酰胺、四氢呋喃、二氯乙烷或二氧六环。
3.根据权利要求1所述的方法,其特征在于:所述的酸为:盐酸、醋酸、对甲苯磺酸TsOH或三氟乙酸TFA。
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