Reaktion #41950

Reaktionsgleichung

6-Bromo-3-methanesulfonyl-2-methyl-4-(2,4,5-trifluoro-phenyl)-quinoline

cesium carbonate

morpholine

→

solid

Ausbeute 62.0%

3-Methanesulfonyl-2-methyl-6-morpholin-4-yl-4-(2,4,5-trifluoro-phenyl)-quinoline

Ausbeute 62.0%

Lösungsmittel

tert.-butanol

heptane

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeA tube placed under argon
2. 2
   SonstigeThe tube was sealed
3. 3
   TemperaturThe reaction mixture was cooled to 20° C.
4. 4
   Filtrationfiltered through dicalite
5. 5
   Sonstigepurified directly by flash chromatography on silica gel in heptane/ethyl acetate with a gradient 100:0 to 40:60

Vorschrift

A tube placed under argon was charged with tris(dibenzylideneacetone)dipalladium chloroform complex (19 mg, 0.019 mmol), 2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl (18 mg, 0.019 mmol) and cesium carbonate (454 mg, 1.4 mmol). 6-Bromo-3-methanesulfonyl-2-methyl-4-(2,4,5-trifluoro-phenyl)-quinoline (compound of example 21) (400 mg, 0.93 mmol) in tert.-butanol (20 ml) was added, followed by morpholine (97 mg, 1.11 mmol). The tube was sealed and heated at 110° C. for 2 h. The reaction mixture was cooled to 20° C., diluted with heptane, filtered through dicalite and purified directly by flash chromatography on silica gel in heptane/ethyl acetate with a gradient 100:0 to 40:60 to give a yellow solid (250 mg, 62%). MS: m/z=437 (M+H).

Quelle