1: 1-amino-2,3-dichlorobenzene With tetrafluoroboric acid; HNO2 2: 2-acetyloxy-1-propene With copper(I) oxide; sodium acetate Meerwein arylation;

potassium hydroxide; ammonium cerium(IV) nitrate 1.) H2O, 20 min, 2.) buffer; Multistep reaction;