Triethylamine → 4-[2-(2-fluoroethoxy)-6-[2-(trimethylsilyl)ethynyl]-1H-1,3-benzodiazol-1-yl]pyrimidin-2-amine

HRID 1398688Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1398688
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:9]=[C:8]([O:10][CH2:11][CH2:12][F:13])[N:7]([C:14]3[CH:19]=[CH:18][N:17]=[C:16]([NH2:20])[N:15]=3)[C:6]=2[CH:21]=1.[C:22]([Si:24]([CH3:27])([CH3:26])[CH3:25])#[CH:23].C(N(CC)CC)C>CS(C)=O.ClCCl.[Pd](Cl)Cl.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[F:13][CH2:12][CH2:11][O:10][C:8]1[N:7]([C:14]2[CH:19]=[CH:18][N:17]=[C:16]([NH2:20])[N:15]=2)[C:6]2[CH:21]=[C:2]([C:23]#[C:22][Si:24]([CH3:27])([CH3:26])[CH3:25])[CH:3]=[CH:4][C:5]=2[N:9]=1

Komponenten

7

Edukt 3

HCID 8471TriethylamineHCID 66111TrimethylsilylacetyleneHCID 866696134-[6-bromo-2-(2-fluoroethoxy)-1H-1,3-benzodiazol-1-yl]pyrimidin-2-amine

Produkt 1

HCID 866696144-[2-(2-fluoroethoxy)-6-[2-(trimethylsilyl)ethynyl]-1H-1,3-benzodiazol-1-yl]pyrimidin-2-amineAusbeute 38 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 6102075Dichlorobis(triphenylphosphine)palladiumKatalysatorHCID 679Dimethyl SulfoxideLösungsmittelHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A solution of 4-[6-bromo-2-(2-fluoroethoxy)-1H-1,3-benzodiazol-1-yl]pyrimidin-2-amine (150 mg, 0.43 mmol), ethynyltrimethylsilane (126 mg, 1.28 mmol), bis(triphenylphosphine) palladium(II) dichloride (120 mg, 0.17 mmol) and triethylamine (0.5 mL) in dimethylsulfoxide (1 mL) was irradiated with microwave radiation under nitrogen in a sealed tube at 80° C. for 40 min. The reaction mixture was diluted with 10 mL of dichloromethane and the solid material was removed by filtration. The filtrate was concentrated under vacuum and the residue was purified on a silica gel column (ethyl acetate/petroleum ether, 3:1) to give 60 mg (38%) of 4-[2-(2-fluoroethoxy)-6-[2-(trimethylsilyl)ethynyl]-1H-1,3-benzodiazol-1-yl]pyrimidin-2-amine as a yellow solid: LC-MS: m/z=+370 (M+H)+.

Aufarbeitung

  1. customthe solid material was removed by filtration
  2. concentrationThe filtrate was concentrated under vacuum
  3. customthe residue was purified on a silica gel column (ethyl acetate/petroleum ether, 3:1)

Quellen und Nachweise

ORD-Eintrag
ord-642ebf2a509d47148e8dbb6daac94ec7
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08901313B2

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