反应详情

A solution of 408 (700 mg, 1.68 mmol), Cs2CO3 (1.12 g, 3.43 mmol), 3-methoxyaniline (190 μL, 206 mg, 1.68 mmol), Pd(OAc)2 (70 mg, 0.17 mmol) and Xantphos (1.43 g, 2.52 mmol) (J. Org. Chem. 1999, 64, 6019-6022) in dioxane (15 mL) was heated to reflux for 5 hrs. The reaction mixture was then concentrated and purified by flash chromatography using 80% EtOAc in hexanes as an eluent yielding 448 of (408 mg, 59% yield). LCMS: (M+H) 412.0.

1. temperatureto reflux for 5 hrs
2. concentrationThe reaction mixture was then concentrated
3. custompurified by flash chromatography