反应详情

A cooled (0° C.) solution of 2-(3 {[tert-butyl(dimethyl)silyl]oxy}-2-phenylpropyl)-1H-isoindole-1,3(2H)-dione (0.900 g, 2.28 mmol) in EtOH (10 mL) was treated with hydrazine hydrate (1.41 mL, 3.42 mmol) and the resultant solution was allowed to warm to room temperature and stirred for 18 h. A solution of 5 N aqueous HCl in EtOH (25 mL) was added and the resulting biphasic mixture was stirred for 3 h. The mixture was treated with sat. NaHCO3, until PH=9 attained and then extracted with EtOAC (3×60 ml). The combined organic extracts were washed with brine (50 mL), dried (MgSO4), filtered and concentrated to afford the title compound as a white solid. LCMS=152.2 (M+1)+.

1. stirringthe resulting biphasic mixture was stirred for 3 h
2. extractionextracted with EtOAC (3×60 ml)
3. washThe combined organic extracts were washed with brine (50 mL)
4. dry with materialdried (MgSO4)
5. filtrationfiltered
6. concentrationconcentrated