Abstract: | Using acetonitrile or DMF as cosolvent, both perfluoroalkyl iodides such as Cl(CF2)nI (n = 4,6,8, la—lc ), CF3 (CF2)n I (n = 5,6,7, ld—lf ), I (CF2)n O (CF2) SO3 Na(n = 2,4,6, lg—li ) and perfluoroalkyl bromides such as Cl (CF2)n Br (n = 4,6, 3a—3b ) and C7F15 Br (3e) reacted with Rongalite in aqueous solution to give the corresponding sulfinates Cl (CF2)n SO2 Na (n = 4,6,8, 2a—2c ), CF3-(CF2)nSO2Na (n = 5,6,7, 2d—2f ) and NaO2S(CF2)nO(CF2)2SO3Na (n = 2,4,6, 2g—2i ) in moderate yields. 1 H-perfluoroalkanes were formed as the main products when other solvents such as ethanol. iso-propanol, 1,4-dioxane and morpholine were used. |