1: 91 percent / 10percent HCl / 6 h / Heating 2: 86 percent / LiAlH4 / diethyl ether / 1 h / Ambient temperature 3: SOCl2, pyridine / CHCl3 / 0.5 h / Ambient temperature 4: K2CO3 / acetone / 6 h / Heating View Scheme

1: SOCl2, pyridine / CHCl3 / 0.5 h / Ambient temperature 2: K2CO3 / acetone / 6 h / Heating View Scheme

1: 73 percent / sulfur / 0.5 h / 220 - 230 °C 2: 91 percent / 10percent HCl / 6 h / Heating 3: 86 percent / LiAlH4 / diethyl ether / 1 h / Ambient temperature 4: SOCl2, pyridine / CHCl3 / 0.5 h / Ambient temperature 5: K2CO3 / acetone / 6 h / Heating View Scheme

1: 86 percent / LiAlH4 / diethyl ether / 1 h / Ambient temperature 2: SOCl2, pyridine / CHCl3 / 0.5 h / Ambient temperature 3: K2CO3 / acetone / 6 h / Heating View Scheme

potassium carbonate in acetone 6 h; Heating;