1: 1) AlCl3 / 1) nitrobenzene, 10 deg C, 0.5h, 2) 65 deg C, 4h 2: 62 percent / NaBH4 / methanol / 2.5 h / Ambient temperature 3: 1) piperidine, 2) glacial HOAc / 1) MeOH, 8h, reflux, 2) 60 deg C, 10h View Scheme

1: 62 percent / NaBH4 / methanol / 2.5 h / Ambient temperature 2: 1) piperidine, 2) glacial HOAc / 1) MeOH, 8h, reflux, 2) 60 deg C, 10h View Scheme

piperidine; acetic acid 1) MeOH, 8h, reflux, 2) 60 deg C, 10h; Yield given. Multistep reaction;