1: 8 percent / Lewis-acids / nitrobenzene / 24 h 2: 1.) hydrazine hydrate, KOH , 2.) KOH / 1.) triethylene glycole, 2 h, reflux; 200 deg C, 4 h, 2.) triethylene glycole View Scheme

1: 8 percent / Lewis-acids / nitrobenzene / 24 h 2: 1.) hydrazine hydrate, KOH , 2.) KOH / 1.) triethylene glycole, 2 h, reflux; 200 deg C, 4 h, 2.) triethylene glycole View Scheme

potassium hydroxide; hydrazine hydrate 1.) triethylene glycole, 2 h, reflux; 200 deg C, 4 h, 2.) triethylene glycole; Yield given. Multistep reaction;