Benzyl Bromide → 6-Benzyl-8,8-dimethyl-6,9-diaza-spiro[4.5]decan-10-one

反応式

[CH3:1][C:2]1([CH3:13])[NH:11][C:10](=[O:12])[C:5]2([CH2:9][CH2:8][CH2:7][CH2:6]2)[NH:4][CH2:3]1.[CH2:14](Br)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1.CCN(C(C)C)C(C)C>CN(C=O)C>[CH2:14]([N:4]1[CH2:3][C:2]([CH3:13])([CH3:1])[NH:11][C:10](=[O:12])[C:5]21[CH2:9][CH2:8][CH2:7][CH2:6]2)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

参加物

実験手順

To a solution of 6.72 g of 8,8-dimethyl-6,9-diaza-spiro[4.5]decan-10-one in 35 ml of DMF were added 4.8 ml of benzyl bromide and 6.9 ml of Hünig's base. The reaction was stirred at r.t overnight. The precipitated product was isolated by suction and washed with DMF and EtOAc. The filtrate was concentrated and the resulting residue was dissolved in EtOAc, washed with water, dried over Na2SO4, filtered and concentrated to yield a second fraction of the product. 9.62 g (96%) of the title compound were obtained.