Potassium vinyltrifluoroborate → HCID 178436594, Verbindung

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Reaktionsgleichung

Br[C:2]1[CH:3]=[C:4]([O:10][C:11]2[C:12]([F:29])=[C:13]([CH2:18][NH:19][C:20]([C:22]3[NH:26][C:25]([CH3:27])=[N:24][C:23]=3[Cl:28])=[O:21])[CH:14]=[CH:15][C:16]=2[Cl:17])[CH:5]=[C:6]([C:8]#[N:9])[CH:7]=1.[CH:30]([B-](F)(F)F)=[CH2:31].[K+]>C(O)CC.CCOC(C)=O>[Cl:28][C:23]1[N:24]=[C:25]([CH3:27])[NH:26][C:22]=1[C:20]([NH:19][CH2:18][C:13]1[CH:14]=[CH:15][C:16]([Cl:17])=[C:11]([O:10][C:4]2[CH:3]=[C:2]([CH:30]=[CH2:31])[CH:7]=[C:6]([C:8]#[N:9])[CH:5]=2)[C:12]=1[F:29])=[O:21]

Komponenten

Reaktionsbedingungen

Temperatur: 100 °C

Versuchsvorschrift

To a solution of N-({3-[(3-bromo-5-cyanophenyl)oxy]-4-chloro-2-fluorophenyl}methyl)-4-chloro-2-methyl-1H-imidazole-5-carboxamide (0.480 g, 0.964 mmol), potassium vinyltrifluoroborate (0.194 g, 1.445 mmol) and 1,1′-bis(diphenylphosphino)ferrocenedichloropalladium(II) dichloromethane complex (0.079 g, 0.096 mmol) in n-propanol (8 ml) was added TEA (0.672 ml, 4.82 mmol) and the reaction mixture was heated at 100° C. for 4 hours. The reaction mixture was diluted with EtOAc and washed with water. The solvent was removed and the crude material was purified via silica gel chromatography to give 4-chloro-N-({4-chloro-3-[(3-cyano-5-ethenylphenyl)oxy]-2-fluorophenyl}methyl)-2-methyl-1H-imidazol e-5-carboxamide (0.263 g, 0.591 mmol, 61% yield). 1H NMR (400 MHz, DMSO-d6) δ ppm 8.05 (t, 1H), 7.77 (s, 1H), 7.47 (d, 1H), 7.40 (br. s., 1H), 7.32 (t, 1H), 7.26 (br. s., 1H), 6.72 (dd, 1H), 6.01 (d, 1H), 5.41 (d, 1H), 4.51 (d, 2H), 2.23 (s, 3H).

Aufarbeitung

washwashed with water
customThe solvent was removed
customthe crude material was purified via silica gel chromatography

Quellen und Nachweise

ORD-Eintrag: ord-6e2ced31b4c5496f942979d6ada4e2eb
Quelldatensatz: uspto-grants-2012_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08304419B2

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