反応 #626265

反応方程式

(S)-2-amino-2-cyclopentylacetic acid

LiAlH4

→

(S)-2-amino-2-cyclopentylethanol

溶媒

THF

THF

反応条件

後処理

1. 1
   温度heated
2. 2
   温度at reflux overnight
3. 3
   温度After cooling
4. 4
   温度the reaction mixture was cooled to 0° C.
5. 5
   その他carefully quenched by dropwise addition of water (0.4 mL)
6. 6
   ろ過filtered through Celite
7. 7
   濃縮The filtrate was concentrated

実験手順

To a stirred solution of (S)-2-amino-2-cyclopentylacetic acid (1.00 g, 6.98 mmol) in THF (20 mL) was added dropwise a solution of LiAlH4 in THF (1.0 M, 10.5 mL, 10.5 mmol) at 0° C. under N2. The reaction was allowed to warm to ambient temperature and heated at reflux overnight. After cooling, the reaction mixture was cooled to 0° C. and carefully quenched by dropwise addition of water (0.4 mL) followed by 15% NaOH solution (0.4 mL) and water (1.2 mL). The mixture was stirred at ambient temperature for 15 minutes and filtered through Celite. The filtrate was concentrated to give crude (S)-2-amino-2-cyclopentylethanol, which was used in the next step without further purification.

出典