pyridine in diethyl ether

With  potassium hydroxide in  tetrahydrofuran T=65 - 70°C; 2 h;   

With  potassium hydroxide in  tetrahydrofuran T=65 - 70°C; 2 h;   

Multi-step reaction with 3 steps 1: CH2Cl2 / 0.5 h / Ambient temperature2: 12 percent / 50percent NaH / dimethylsulfoxide / 3 h / Ambient temperature3: 55 percent / 10percent aq. KOH / tetrahydrofuran / 2 h / 65 - 70 °C  

Multi-step reaction with 2 steps 1: 12 percent / 50percent NaH / dimethylsulfoxide / 3 h / Ambient temperature2: 55 percent / 10percent aq. KOH / tetrahydrofuran / 2 h / 65 - 70 °C