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Methanesulfonic Acid → (5-Fluoro-4-methyl-pyrimidin-2-yl)-[3-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-amine

HRID 410406
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 410406
Cl[C:2]1[N:7]=[C:6]([CH3:8])[C:5]([F:9])=[CH:4][N:3]=1.[CH3:10][C:11]1[CH:12]=[C:13]([NH2:26])[CH:14]=[C:15]([B:17]2[O:21][C:20]([CH3:23])([CH3:22])[C:19]([CH3:25])([CH3:24])[O:18]2)[CH:16]=1.CS(O)(=O)=O>O1CCOCC1.C([O-])(O)=O.[Na+]>[F:9][C:5]1[C:6]([CH3:8])=[N:7][C:2]([NH:26][C:13]2[CH:14]=[C:15]([B:17]3[O:21][C:20]([CH3:22])([CH3:23])[C:19]([CH3:25])([CH3:24])[O:18]3)[CH:16]=[C:11]([CH3:10])[CH:12]=2)=[N:3][CH:4]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 6395Methanesulfonic AcidHCID 207780732-Chloro-5-fluoro-4-methylpyrimidineHCID 672361713-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline

Produkt 1

HCID 58456078(5-Fluoro-4-methyl-pyrimidin-2-yl)-[3-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]-amineAusbeute 62,6 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 31275
1,4-Dioxane
Lösungsmittel
HCID 516892Sodium BicarbonateLösungsmittel

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a solution of 2-chloro-5-fluoro-4-methyl-pyrimidine (4.00 g, 27.3 mmol) and 3-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenylamine (8.27 g, 35.5 mmol) in dioxane (40.7 mL) was added methanesulfonic acid (1.77 ml, 27.3 mmol) dropwise during which the reaction exothermed 15.7° C. Subsequently the reaction mixture was heated to 100° C. and allowed to stir over the weekend. The mixture was cooled to room temperature and was diluted with saturated aqueous NaHCO3 and extracted with ethyl acetate. The organic extracts were washed with brine and dried over MgSO4, filtered and concentrated in vacuo. Purification by flash chromatography provided (5-fluoro-4-methyl-pyrimidin-2-yl)-[3-methyl-5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-phenyl]amine (5.87 g, 17.1 mmol) MS ESI: [M+]+ m/z 344.1. 1H NMR (500 MHz, DMSO-d6) δ 9.50 (s, 1H), 8.38 (d, J=1.6, 1H), 7.81-7.62 (m, 2H), 7.07 (s, 1H), 2.36 (d, J=2.3, 3H), 2.26 (s, 3H), 1.27 (s, 12H).

Aufarbeitung

  1. temperatureThe mixture was cooled to room temperature
  2. extractionextracted with ethyl acetate
  3. washThe organic extracts were washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customPurification by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-b28512641b1246a9bf618a2ed2741058
Quelldatensatz
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08759366B2

Notizen zur Reaktion

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