Tributylvinyltin → 3-((6-fluoro-1-methyl-1H-indazol-5-yl)methyl)-6-vinylimidazo[1,2-b]pyridazine

HRID 456175Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 456175
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH2:11][C:12]3[CH:13]=[C:14]4[C:18](=[CH:19][C:20]=3[F:21])[N:17]([CH3:22])[N:16]=[CH:15]4)=[CH:9][N:10]=2)[N:7]=1.[CH2:23]([Sn](CCCC)(CCCC)C=C)[CH2:24]CC>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:21][C:20]1[CH:19]=[C:18]2[C:14]([CH:15]=[N:16][N:17]2[CH3:22])=[CH:13][C:12]=1[CH2:11][C:8]1[N:6]2[N:7]=[C:2]([CH:23]=[CH2:24])[CH:3]=[CH:4][C:5]2=[N:10][CH:9]=1

Komponenten

4

Edukt 2

HCID 81998TributylvinyltinHCID 581906096-Chloro-3-((6-fluoro-1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazine

Produkt 1

HCID 669271833-((6-fluoro-1-methyl-1H-indazol-5-yl)methyl)-6-vinylimidazo[1,2-b]pyridazineAusbeute 43,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 178418397HCID 178418397, VerbindungKatalysator

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

To a degassed solution of 6-chloro-3-((6-fluoro-1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazine (400 mg, 1.267 mmol), was added Pd(Ph3P)4 (220 mg, 0.190 mmol) and tributyl(vinyl)stannane (422 mg, 1.330 mmol). The reaction mixture was heated to 120° C. for overnight. Then the reaction was quenched with NH4Cl(aq), extracted with DCM, dried over Na2SO4 and concentrated in vacuo to give a residue, which was purified by silica gel column chromatography with gradient Hex:EA to give 3-((6-fluoro-1-methyl-1H-indazol-5-yl)methyl)-6-vinylimidazo[1,2-b]pyridazine (168 mg, 43%). 1H-NMR (400 MHz, DMSO-d6) δ ppm 8.09 (d, 1H), 7.97 (s, 1H), 7.63 (d, 1H), 7.55 (d, 1H), 7.54 (d, 1H), 7.50 (s, 1H), 6.84 (dd, 1H), 6.31 (d, 1H), 5.72 (d, 1H), 4.37 (s, 2H), 3.98 (s, 3H). LCMS (method B): [MH]+=308, tR=2.49 min.

Aufarbeitung

  1. customThen the reaction was quenched with NH4Cl(aq)
  2. extractionextracted with DCM
  3. dry with materialdried over Na2SO4
  4. concentrationconcentrated in vacuo
  5. customto give a residue, which
  6. customwas purified by silica gel column chromatography with gradient Hex

Quellen und Nachweise

ORD-Eintrag
ord-2471fbbd49ac472d84645c019f88a9e9
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08497368B2

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