1,3,5,7-Tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane → HCID 178494055, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of Example 144B (60 mg, 0.14 mmol) and Example 59A (40.1 mg, 0.14 mmol) was degassed under argon. To this mixture was added dioxane (8 mL) followed by degassing with argon. To this mixture was added potassium phosphate, dibasic (109 mg, 0.626 mmol) and water (2.000 mL) followed by degassing with argon. To this mixture was added 1,3,5,7-tetramethyl-6-phenyl-2,4,8-trioxa-6-phosphaadamantane (6.91 mg, 0.024 mmol) and then immediately tris(dibenzylideneacetone)dipalladium (0) (8.92 mg, 9.74 μmol) followed by degassing with argon. The reaction mixture was heated at 100° C. for 1 hour. The mixture was cooled to ambient temperature and partitioned between saturated aqueous sodium chloride and ethyl acetate. The organic phase was dried over anhydrous magnesium sulfate, filtered, and concentrated to provide the title compound (0.042 g, 59% yield)

Provenance & Evidence