反应详情

Tert-butyl 2-(7-bromo-2-hydroxy-1,1-dimethyl-4-oxo-1,4-dihydronaphthalene-3-carboxamido)acetate (253 mg, 596 μmol, Example 53A-E), trans-dichlorobis(triphenylphosphine)palladium (II) (21 mg, 30 μmol), and triphenylphosphine (16 mg, 60 μmol) were added to a vial, followed by water (32 μL, 1789 μmol) and n-tributylamine (1491 μL). The reaction mixture was placed under 4 atm of carbon monoxide at 90° C. for 18 hours. The reaction mixture was diluted with 50 mL of EtOAc, washed 3 times with 50 mL of 5 N NaOH (aqueous), and separated. The aqueous layer was acidified to pH 2 with concentrated HCl and extracted 2 times with 50 mL of EtOAc, dried over sodium sulfate, and concentrated via rotovap to give the title compound. MS (ESI) m/z: Calculated; 333.3: Observed; 334.0.

1. washwashed 3 times with 50 mL of 5 N NaOH (aqueous)
2. customseparated
3. extractionextracted 2 times with 50 mL of EtOAc
4. dry with materialdried over sodium sulfate
5. concentrationconcentrated via rotovap