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Dimethylformamide → 2-Chloro-8-(6-fluoro-pyridin-3-yl)-4-morpholin-4-yl-quinazoline

HRID 517458
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 517458
Br[C:2]1[CH:3]=[CH:4][CH:5]=[C:6]2[C:11]=1[N:10]=[C:9]([Cl:12])[N:8]=[C:7]2[N:13]1[CH2:18][CH2:17][O:16][CH2:15][CH2:14]1.[F:19][C:20]1[CH:25]=[CH:24][C:23](B(O)O)=[CH:22][N:21]=1.C(=O)([O-])[O-].[Na+].[Na+].CN(C=O)C>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O>[Cl:12][C:9]1[N:8]=[C:7]([N:13]2[CH2:18][CH2:17][O:16][CH2:15][CH2:14]2)[C:6]2[C:11](=[C:2]([C:23]3[CH:22]=[N:21][C:20]([F:19])=[CH:25][CH:24]=3)[CH:3]=[CH:4][CH:5]=2)[N:10]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 6228DimethylformamideHCID 10340Sodium CarbonateHCID 2783397(6-Fluoropyridin-3-yl)boronic acidHCID 866657654-(8-Bromo-2-chloroquinazolin-4-yl)morpholine

Produkt 1

HCID 866657672-Chloro-8-(6-fluoro-pyridin-3-yl)-4-morpholin-4-yl-quinazolineAusbeute 63,7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418476HCID 178418476, VerbindungKatalysator
HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
95 °C

Versuchsvorschrift

To a 50 mL round bottom flask, 8-bromo-2-chloro-4-morpholin-4-yl-quinazoline (150 mg, 0.00046 mol), 2-fluoropyridine-5-boronic acid (58 mg, 0.00041 mol), sodium carbonate (72 mg, 0.00068 mol), DMF (10 mL) and water (3 mL) were added and the reaction vessel was degassed with nitrogen for 5-10 min. To the same reaction mixture, PdCl2(PPh3)2 (16 mg, 0.000023 mol) was added and again degassed with nitrogen for 5-10 min. The reaction mixture was stirred at 95° C. for 2 h. The reaction mixture was cooled and diluted with ethyl acetate. The organic layer was washed with water, brine and dried over sodium sulfate. The solvent was removed under reduced pressure to afford the crude product. The crude product was purified using column chromatography (60-120 silica gel, 60% ethyl acetate in hexane) to yield the desired product [90 mg, 60%]. 1H NMR (300 MHz, CDCl3): δ 8.44 (s, 1H), 8.17-8.24 (m, 1H), 7.89 (d, J=8.1 Hz, 1H), 7.78 (d, J=7.5 Hz, 1H), 7.53 (t, J=7.5 Hz, 1H), 7.75 (dd, J′=2.7, J″=3.0 Hz, 1H), 3.89 (s, 8H). LC-MS (ESI): Calculated mass: 344.1; Observed mass: 345.0 [M+H]+ (RT: 1.63 min).

Aufarbeitung

  1. customthe reaction vessel was degassed with nitrogen for 5-10 min
  2. customagain degassed with nitrogen for 5-10 min
  3. temperatureThe reaction mixture was cooled
  4. additiondiluted with ethyl acetate
  5. washThe organic layer was washed with water, brine
  6. dry with materialdried over sodium sulfate
  7. customThe solvent was removed under reduced pressure
  8. customto afford the crude product
  9. customThe crude product was purified

Quellen und Nachweise

ORD-Eintrag
ord-acac334a28b44da7ba97625a08dff692
Quelldatensatz
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09115092B2

Notizen zur Reaktion

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