反应详情

A mixture of EXAMPLE 288A (1.69 g), phosphorus pentachloride (2.03 g), and phosphoryl trichloride (0.97 mL) was heated at 90° C. for 3 hours. After cooling, the reaction mixture was poured into ice, and extracted with ethyl acetate three times. The extract was washed with brine, dried over MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by flash column chromatography on silica gel eluting with 10% ethyl acetate in hexanes to provide the title compound.

1. temperatureAfter cooling
2. additionthe reaction mixture was poured into ice
3. extractionextracted with ethyl acetate three times
4. washThe extract was washed with brine
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated under reduced pressure
8. customThe residue was purified by flash column chromatography on silica gel eluting with 10% ethyl acetate in hexanes