N-[6-Benzyloxy-2,2-dimethylchroman-4-yl]-N-ethylmethanesulfonamide → N-[2,2-dimethyl-6-hydroxychroman-4-yl]-N-ethyl-methanesulfonamide
反応式
C([O:8][C:9]1[CH:10]=[C:11]2[C:16](=[CH:17][CH:18]=1)[O:15][C:14]([CH3:20])([CH3:19])[CH2:13][CH:12]2[N:21]([CH2:26][CH3:27])[S:22]([CH3:25])(=[O:24])=[O:23])C1C=CC=CC=1>C1COCC1.CO.[Pd].[C]>[CH3:20][C:14]1([CH3:19])[CH2:13][CH:12]([N:21]([CH2:26][CH3:27])[S:22]([CH3:25])(=[O:24])=[O:23])[C:11]2[C:16](=[CH:17][CH:18]=[C:9]([OH:8])[CH:10]=2)[O:15]1参加物
4
実験手順
12 g of N-[6-benzyloxy-2,2-dimethylchroman-4-yl]-N-ethylmethanesulfonamide were dissolved in 250 ml of THF/methanol (1:1) and hydrogenated in a shaking duck using Pd/carbon. After absorption of hydrogen was complete, the catalyst was filtered off with suction, the filtrate was concentrated and the residue was crystallized using diisopropyl ether, 7.7 g, m.p. 169-170° C.