反应详情

温度

65 °C

A vial was charged with (4R)-2′-bromo-7′-(2,2-dimethylpropoxy)spiro[1,3-oxazole-4,9′-xanthen]-2-amine (80.0 mg, 192 μmol), DavePhos (9.05 mg, 23.0 μmol), tris(dibenzylideneacetone)dipalladium(0) (8.78 mg, 9.59 μmol), lithium bis(trimethylsilyl)amide (767 μl of a 1.0 M solution in THF, 767 μmol), and morpholine (50.1 μl, 575 μmol). The vial was sealed and heated in a 65° C. oil bath for 15 h. The reaction mixture was diluted with a saturated aqueous ammonium chloride solution (10 mL) and extracted with DCM (3×10 mL). The combined organic extracts were dried over sodium sulfate, filtered, and evaporated. The residue was purified by chromatography on a 12-g Redi-Sep column, eluting with 0-8% MeOH/DCM. The first fraction containing product was mixed and was discarded. The remaining fractions were combined and evaporated to yield (4S)-2′-(2,2-dimethylpropoxy)-7′-(4-morpholinyl)spiro[1,3-oxazole-4,9′-xanthen]-2-amine as a pale yellow solid. MS m/z=424.2 [M+H]+. Calc'd for C24H30N3O4: 424.2.

1. customThe vial was sealed
2. extractionextracted with DCM (3×10 mL)
3. dry with materialThe combined organic extracts were dried over sodium sulfate
4. filtrationfiltered
5. customevaporated
6. customThe residue was purified by chromatography on a 12-g Redi-Sep column
7. washeluting with 0-8% MeOH/DCM
8. additionThe first fraction containing product
9. additionwas mixed
10. customevaporated