hydrogenchloride; titanium(III) chloride; ammonium acetate; sodium methylate in methanol; water 1.5 h; Ambient temperature;

sodium hydroxide; perchloric acid; sulfuric acid; acetic anhydride 1.) MeOH, RT, 2h, 2.) EtOAc, reflux, 1 h; Yield given. Multistep reaction;