1: 98 percent / NaBH4 / methanol / 1 h / 25 °C 2: pyridine / 4 h / 25 °C 3: 75 percent / 1,8-diazabicyclo<5.4.0>undec-7-ene (DBU) / 3 h / 100 °C View Scheme

With  sulfuryl dichloride; toluene-4-sulfonic acid T=60°C; 2 h;   

With  sodium tetrahydroborate in  methanol T=25°C; 1 h;