1: 66 percent / HNO3 / acetic acid; acetic anhydride / 2 h / 20 °C 2: 1.) Sn, cc. HCl / 1.) r.t., 3 h; 2.) ether, 1 h View Scheme

hydrogenchloride; tin 1.) r.t., 3 h; 2.) ether, 1 h; Yield given. Multistep reaction;