1: AlCl3, aluminium chloride / nitrobenzene / 20 h / 70 - 80 °C 2: hydrazine hydrate; potassium hydroxide / 1,2-bis-(2-hydroxyethoxy)-ethane / 2 h / Reflux View Scheme

1: AlCl3, aluminium chloride / nitrobenzene / 20 h / 70 - 80 °C 2: hydrazine hydrate; potassium hydroxide / 1,2-bis-(2-hydroxyethoxy)-ethane / 2 h / Reflux View Scheme

hydrazine hydrate; potassium hydroxide in 1,2-bis-(2-hydroxyethoxy)-ethane 2 h; Reflux;