1: 93 percent / Ag2O / CHCl3 / 40 - 50 °C 2: 1) Zn; 2) 40 percent NaOH / 1) CHCl3, glacial acetic acid; 2) dioxane, 12 h View Scheme

1: 35 percent / AlCl3, NaCl / 180 °C 2: 93 percent / Ag2O / CHCl3 / 40 - 50 °C 3: 1) Zn; 2) 40 percent NaOH / 1) CHCl3, glacial acetic acid; 2) dioxane, 12 h View Scheme

sodium hydroxide; zinc 1) CHCl3, glacial acetic acid; 2) dioxane, 12 h; Yield given. Multistep reaction;