4-Nitrophthalimide → (5-Nitro-1,3-dioxo-1,3-dihydro-isoindol-2-yl)-acetic acid ethyl ester

関与物質

反応手順

A mixture of 4-nitrophthalimide (82.54 g, 0.43 mol), ethyl bromoacetate (78.92 g, 0.47 mol) and potassium carbonate (130.6 g, 0.94 mol), and acetone (1.5 l) was refluxed for eighteen hours before it was cooled to room temperature, filtered and concentrated in vacuo. The residue was partitioned between dichloromethane and water. The organic layer was dried over anhydrous sodium sulfate and concentrated in vacuo to give the title compound as a yellow solid (107.39 g): MS: (+) m/z 279.25 (M+1).

情報源と証拠