4-(4-Bromobenzyl)morpholine → 5-fluoro-4-[2-methyl-3-(oxan-4-yl)imidazol-4-yl]-N-[4-(morpholin-4-ylmethyl)phenyl]pyrimidin-2-amine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

The aim of the reaction is only optimization and test. The reaction described below was carried out under argon atmosphere. Palladium(II) acetate (2.245 mg, 10.00 µmol) and (R)-(-)-1-[(S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldi-t-butylphosphine (5.61 mg, 10.00 µmol) were mixed in DME (0.2 mL) in a 1.4 ml vial under argon and stirred for 1 minute at room temperature. The orange pre-mixed Pd-catalyst solution were added to a 10 mL Schlenk-tube containing 4-(4-bromobenzyl)morpholine (0.282 g, 1.1 mmol) and Sodium tert- pentoxide (0.161 g, 1.46 mmol) in DME (1.5 mL). Finally, 5-fluoro-4-(2-methyl-1-(tetrahydro-2H-pyran-4-yl)-1H-imidazol-5-yl)pyrimidin-2-amine (0.277 g, 1 mmol) was added and the bright orange reaction mixture was stirred at 90 °C. The mixture turned from bright orange into bright yellow in 1 h. The reaction was followed by HPLC. No reaction took place, hence the mixture was discarded.

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