1: 92 percent / HCl, air / H2O / 2 h / Heating 2: 1) t-BuOK / 1) DME, THF, room temperature, 30 min, 2) DME, THF, reflux, 4 d 3: 57 percent / CH3COOK, Bu4NBr, Pd(CH3COO)2 / acetonitrile / 3 h / Heating View Scheme