1.1: 100 percent / SOCl2 / CH2Cl2 2.1: dimethylformamide / 60 - 70 °C 2.2: 80 percent / HCl / diethyl ether View Scheme

1: With triphenylphosphine in 1,4-dioxane T=70°C; Mitsunobu reaction; 0.166667 h; 2: With di-isopropyl azodicarboxylate in 1,4-dioxane T=70°C; Mitsunobu reaction;