反应详情

温度

100 °C

To a 25 ml glass vial was added (+)-(R)-tert-butyl 2-(4-bromo-2-fluorophenyl)morpholine-4-carboxylate (300 mg, example 192(f)) and 5-trifluoromethyl-pyrimidin-2-ylamine (156 mg, CAS 69034-08-8) in dioxane (5 ml). The reaction mixture was purged with argon for 5 min. 2-Di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl (58.3 mg), tris(dibenzylideneacetone)dipalladium(0) (30.5 mg) and sodium tert-butoxide (89.8 mg) were then added. The vial was capped and heated at 100° C. for 2 h. The reaction mixture was then filtered through sintered glass and the filtrate was concentrated in vacuo. The residue was purified by flash column chromatography (silica gel; gradient: 0% to 60% EtOAc in heptane) to afford (R)-tert-butyl 2-(2-fluoro-4-(5-(trifluoromethyl)pyrimidin-2-ylamino)phenyl)morpholine-4-carboxylate (304 mg, 83%) as an amorphous yellow solid. MS (ISP): 441.2 ([M−H]−).

1. customThe reaction mixture was purged with argon for 5 min
2. addition2-Di-tert-butylphosphino-2′,4′,6′-triisopropylbiphenyl (58.3 mg), tris(dibenzylideneacetone)dipalladium(0) (30.5 mg) and sodium tert-butoxide (89.8 mg) were then added
3. customThe vial was capped
4. filtrationThe reaction mixture was then filtered through sintered glass
5. concentrationthe filtrate was concentrated in vacuo
6. customThe residue was purified by flash column chromatography (silica gel; gradient: 0% to 60% EtOAc in heptane)