1: 5-nitro-isoindole-1,3-dione With potassium hydroxide in methanol; ethanol T=20°C; 3 h; 2: 3-bromopropyl halide With potassium carbonate in N,N-dimethyl-formamide 1 h; Reflux;

1.1: nitric acid; sulfuric acid / 16 h / 5 - 20 °C 2.1: potassium hydroxide / methanol; ethanol / 3 h / 20 °C 2.2: 1 h / |Reflux View Scheme

sodium hydride 1.) DMF, 60 deg C, 30 min, 2.) DMF, acetone, reflux, 16 h; Yield given. Multistep reaction;