potassium hydroxide in toluene 3 h; Heating / reflux;

potassium hydroxide in toluene 3 h; Heating / reflux;

1: With methyl-magnesium chloride in tetrahydrofuran; diethyl ether T=10°C; 2: With water; ammonium chloride in tetrahydrofuran; diethyl ether 3: With hydrogenchloride in diethyl ether T=0 - 10°C; pH=1; 3 h;