Isopropyl iodide → N-(2-Fluoro-5-isopropoxyphenyl)-3,4,5,6-tetrahydrophthalimide

Participants

Reaction Steps

N-(2-Fluoro-5-hydroxyphenyl)-3,4,5,6-tetrahydrophthalimide (VI) (10 g), isopropyl iodide (7 g) and anhydrous potassium carbonate (5.2 g) were dissolved in acetonitrile (100 ml), and the resultant solution was heated under reflux for 2.5 hours. After cooling, the reaction mixture was extracted with ethyl acetate. The extract was concentrated, and the precipitated crystals were collected by filtration to give 9 g of N-(2-fluoro-5-isopropoxyphenyl)-3,4,5,6-tetrahydrophthalimide (II: R=isopropyl). M.P. 62.8° C.

Provenance & Evidence