5-(Tributylstannyl)pyrimidine → 2-methoxy-7-(pyrimidin-5-yl)-9H-xanthen-9-one

HRID 455686

Reaktionsgleichung

Reaktionsgleichung von HRID 455686
CC(C1C=C(C(C)C)C(C2C=CC=CC=2P(C2CCCCC2)C2CCCCC2)=C(C(C)C)C=1)C.C([Sn](CCCC)(CCCC)[C:40]1[CH:41]=[N:42][CH:43]=[N:44][CH:45]=1)CCC.Br[C:55]1[CH:68]=[CH:67][C:66]2[O:65][C:64]3[C:59](=[CH:60][C:61]([O:69][CH3:70])=[CH:62][CH:63]=3)[C:58](=[O:71])[C:57]=2[CH:56]=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].O1CCOCC1>[CH3:70][O:69][C:61]1[CH:62]=[CH:63][C:64]2[O:65][C:66]3[C:57](=[CH:56][C:55]([C:40]4[CH:45]=[N:44][CH:43]=[N:42][CH:41]=4)=[CH:68][CH:67]=3)[C:58](=[O:71])[C:59]=2[CH:60]=1

Komponenten

6

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A vial charged with Pd2(dba)3 (0.150 g, 0.164 mmol), XPhos (0.391 g, 0.819 mmol), 5-(tributylstannyl)pyrimidine (1.81 g, 4.92 mmol), 2-bromo-7-methoxy-9H-xanthen-9-one (1.000 g, 3.28 mmol) and dioxane (10 mL). The reaction mixture was evacuated and backfilled with nitrogen. The reaction mixture was heated to 100° C. overnight. The reaction mixture was cooled to RT and diluted with water and EtOAc. A grey solid precipitated out, which was filtered off. The solid was washed with EtOAc and water. The grey solid dried under reduced pressure to afford 2-methoxy-7-(pyrimidin-5-yl)-9H-xanthen-9-one) (0.600 g, 60.2% yield).

Aufarbeitung

  1. customThe reaction mixture was evacuated
  2. temperatureThe reaction mixture was cooled to RT
  3. additiondiluted with water and EtOAc
  4. customA grey solid precipitated out
  5. filtrationwhich was filtered off
  6. washThe solid was washed with EtOAc and water
  7. customThe grey solid dried under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-7e96cc4aacfa414a9927a9d5c3bd74cc
Quelldatensatz
uspto-grants-2013_07
Patentnummer
US08497264B2

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