1: With sodium hydride; dimethyl sulfoxide T=100°C; 48 h; 2: With sodium hydroxide in ethanol; water T=100°C; 72 h;

1: diethoxyphosphoryl-acetic acid ethyl ester With sodium hydride in dimethyl sulfoxide T=20°C; 2: 5H-dibenzo[a,d]-cyclohepten-5-one in dimethyl sulfoxide T=20 - 100°C; 49.25 h; 3: With hydrogenchloride; sodium hydroxide; water more than 3 stages;

hydrogenchloride; sodium hydroxide in ethanol; dimethyl sulfoxide; toluene

1: NaH / dimethylsulfoxide 2: hydrolysis View Scheme

sodium hydroxide

quinoline; copper (II) chromite T=210 - 220°C;