Methyl iodide → 3Oxo-17beta-(hydroxymethyl)-4-methyl-4-androstene

反応式

[CH3:1]C(C)([O-])C.[K+].[O:7]=[C:8]1[CH2:25][CH2:24][C@@:23]2([CH3:26])[C:10]([CH2:11][CH2:12][C@@H:13]3[C@@H:22]2[CH2:21][CH2:20][C@@:18]2([CH3:19])[C@H:14]3[CH2:15][CH2:16][C@@H:17]2[CH2:27][OH:28])=[CH:9]1.CI>C(O)(C)(C)C>[O:7]=[C:8]1[CH2:25][CH2:24][C@@:23]2([CH3:26])[C:10]([CH2:11][CH2:12][C@@H:13]3[C@@H:22]2[CH2:21][CH2:20][C@@:18]2([CH3:19])[C@H:14]3[CH2:15][CH2:16][C@@H:17]2[CH2:27][OH:28])=[C:9]1[CH3:1]

参加物

実験手順

A mixture of potassium-t-butoxide (5 g) in 100 ml t-butanol is heated to reflux. A solution of 3-oxo-17β-(hydroxymethyl)-4-androstene (10 g) in t-butanol is added followed by a solution of methyl iodide (2.7 g) in t-butanol. Heating is continued for 3 hours. The mixture is then cooled, acidified, and extracted with dichloromethane. The dichloromethane solution is washed with brine, dried, and concentrated to yield 3oxo-17β-(hydroxymethyl)-4-methyl-4-androstene.