反应详情

To a solution of tetrahydro-pyrrolo[1,2-a]imidazole-2,5-dione (1 g, 7.14 mmol; prepared as described in J. Med. Chem. 36, 4214-4220, 1994,) in N-methylpyrrolidone (NMP, 12 cc), CuI (0.2 g, 1.05 mmol), K2CO3 (1 g, 7.14 mmol) and Iodobenzene (5 g, 24.5 mmol) were added under stirring. The suspension was heated in a microwave apparatus (250 Watt) for 45 min. Ethyl acetate was added to the suspension and the solid was filtered. The organic phase was washed with water and the aqueous phase was re-extracted with CH2Cl2. The organic phases were gathered and dried over Na2SO4, filtered and concentrated to dryness. The residue was triturated with isopropyl ether. The solid was filtered, triturated with water and filtered to yield 0.18 g of the title compound, mp=185-188° C.

1. temperatureThe suspension was heated in a microwave apparatus (250 Watt) for 45 min
2. filtrationthe solid was filtered
3. washThe organic phase was washed with water
4. extractionthe aqueous phase was re-extracted with CH2Cl2
5. dry with materialdried over Na2SO4
6. filtrationfiltered
7. concentrationconcentrated to dryness
8. customThe residue was triturated with isopropyl ether
9. filtrationThe solid was filtered
10. customtriturated with water
11. filtrationfiltered