1H-Isoindole-1,3(2H)-dione, 2-(3-amino-4-chlorophenyl)- → Isopentyl 2-[(2-Chloro-5-phthalimidophenyl)amino]propionate

Temperature

150 °C

A mixture of 1.64 g of N-(3-amino-4-chlorophenyl)phthalimide, 2.68 g of isopentyl 2-bromopropionate, and 0.60 g of sodium hydrogencarbonate was heated at 150° C. for 5 hours while stirring. While the reaction mixture was hot, ethyl acetate was added thereto, and the reaction mixture was washed successively with water and a saturated sodium chloride aqueous solution, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate-hexane=1:8) to give 1.63 g of the title compound (Table 1, Compound No. 5).

1. washthe reaction mixture was washed successively with water
2. dry with materiala saturated sodium chloride aqueous solution, and dried over anhydrous magnesium sulfate
3. customThe solvent was evaporated under reduced pressure
4. customthe residue was purified by silica gel column chromatography (ethyl acetate-hexane=1:8)

ORD record

ord-4525023e361d4c5783a70d8ef30c3b67

Source dataset

uspto-grants-1997_12

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US05696056