Cesium carbonate → HCID 67262142, Verbindung

HRID 1039899Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1039899
CC1(C)C(C)(C)OB([C:9]2[CH:10]=[C:11]([CH:16]=[C:17]([NH:19][C:20]3[N:25]=[C:24]([C:26]([F:29])([F:28])[F:27])[CH:23]=[CH:22][N:21]=3)[CH:18]=2)[C:12]([O:14][CH3:15])=[O:13])O1.C1(P(C2CCCCC2)C2C=CC=CC=2C2C(C(C)C)=CC(C(C)C)=CC=2C(C)C)CCCCC1.C(=O)([O-])[O-].[Cs+].[Cs+].Br[C:72]1[S:76][CH:75]=[N:74][CH:73]=1>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O.O1CCOCC1>[S:76]1[C:72]([C:9]2[CH:10]=[C:11]([CH:16]=[C:17]([NH:19][C:20]3[N:25]=[C:24]([C:26]([F:29])([F:27])[F:28])[CH:23]=[CH:22][N:21]=3)[CH:18]=2)[C:12]([O:14][CH3:15])=[O:13])=[CH:73][N:74]=[CH:75]1

Komponenten

8

Edukt 4

HCID 10796Cesium carbonateHCID 5460595-BromothiazoleHCID 111557942-Dicyclohexylphosphino-2',4',6'-triisoprophylbiphenylHCID 67433486Methyl 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}benzoate

Produkt 1

HCID 67262142HCID 67262142, VerbindungAusbeute 72 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 962WaterLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To a flask containing the product of Step 2 (391 mg, 0.92 mmol), dicyclohexyl[2′,4′,6′-tri(propan-2-yl)biphenyl-2-yl]phosphane (44 mg, 0.092 mmol), Pd2(dba)3 (42 mg, 0.046 mmol), cesium carbonate (602 mg, 1.85 mmol) was added a solution of 5-bromothiazole in a degassed mixture of dioxane (8.4 mL) and water (840 μL). The solution was evacuated and then purged with argon 5 times and then heated at 90° C. overnight. The reaction was cooled, diluted with ethyl acetate, washed with water, dried over magnesium sulfate, filtered and concentrated. Flash chromatography was used for purification to yield methyl 3-(1,3-thiazol-5-yl)-5-{[4-(trifluoromethyl)pyrimidin-2-yl]amino}benzoate (254 mg, 0.67 mmol, 72% yield). MS ESI: [M+H]+ m/z 381.0.

Aufarbeitung

  1. customThe solution was evacuated
  2. custompurged with argon 5 times
  3. temperatureThe reaction was cooled
  4. additiondiluted with ethyl acetate
  5. washwashed with water
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customFlash chromatography was used for purification

Quellen und Nachweise

ORD-Eintrag
ord-84f800b6c73c4fb1810051679e24bec2
Quelldatensatz
uspto-grants-2013_10
Patentnummer
US08551984B2

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