N[C:2]1[CH:10]=[CH:9][C:5]2[O:6][CH:7]=[CH:8][C:4]=2[CH:3]=1.C=O.[C:13]([BH3-])#[N:14].[Na+].[C:17](O)(=O)C>CC#N>[CH3:17][N:14]([CH3:13])[C:2]1[CH:10]=[CH:9][C:5]2[O:6][CH:7]=[CH:8][C:4]=2[CH:3]=1To a stirred solution of 5-aminobenzo[b]furan in CH3CN is added 37% aqueous formaldehyde followed by sodium cyanoborohydride and glacial acetic acid to give the title compound.
読み込み中…