[CH2:1]([N:8]1[CH2:12][CH2:11][C:10]([C:15]#[N:16])([O:13][CH3:14])[CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1>CO.[Ni]>[NH2:16][CH2:15][C:10]1([O:13][CH3:14])[CH2:11][CH2:12][N:8]([CH2:1][C:2]2[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=2)[CH2:9]1The solution of 26.5 g (0.11 mol, 93% proof) 1-benzyl-3-cyano-3-methoxypyrrolidine in 300 ml methanol is hydrogenated at 15 g Raney-Ni at 60° C./100 bar H2. The catalyst is removed by filtration, the methanol is removed in vacuo, and the residue is distilled.
불러오는 중…