1: With potassium tert-butylate in N,N-dimethyl-formamide T=20°C; 15 h; 2: With hydrogen; palladium on activated charcoal in ethyl acetate P=2250.23 Torr; Further stages.;

ammonia; sodium; iron nitrate (III) in diethyl ether 1.) -78 deg C, 1 h, 2.) r.t., 1 d;

water 1.) ether, 60 h reflux, 2.) ether, 0 deg C; Yield given. Multistep reaction. Yields of byproduct given;