[C:1]([CH:3]=[C:4]1[CH2:13][CH2:12][C:7]2([O:11][CH2:10][CH2:9][O:8]2)[CH2:6][CH2:5]1)#[N:2]>C(O)C.[Pt]=O>[C:1]([CH2:3][CH:4]1[CH2:13][CH2:12][C:7]2([O:8][CH2:9][CH2:10][O:11]2)[CH2:6][CH2:5]1)#[N:2]The above nitrile (2.15 g) is treated with platinum oxide (0.1 g) in ethanol (200 ml) and hydrogenated at 3 atmospheres pressure over 4 hours. Removal of the catalyst and concentration of the solvent gives 8-cyanomethyl-1,4-dioxaspiro[4.5]decane as an oil.
読み込み中…