1: 1) AlCl3, 2) NaOMe / 1) 1,2-dichloroethane, a) 0-5 deg C up to r.t. over 3 h, b) refl., 1 h, 2) MeOH, EtOH, refl., 1 h 2: 100 percent / pyridine*HCl / 2 h / 180 - 200 °C View Scheme
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