反応 #83139

反応方程式

α-trimethylsilylethoxymethyl-DL-tryptophan methyl ester

diisopropylethylamine

2-adamantylchloroformate

→

title compound

収率 67.8%

N-[(2-Adamantyloxy)carbonyl]-α-trimethylsilylethoxymethyl-DL-tryptophan methyl ester

収率 67.8%

溶媒

THF

water

反応条件

後処理

1. 1
   抽出extracted with ethyl acetate (4×50 mL)
2. 2
   抽出The organic extract
3. 3
   洗浄was washed with brine
4. 4
   乾燥dried over Na2SO4
5. 5
   その他Evaporation of the organic solvent

実験手順

A mixture of α-trimethylsilylethoxymethyl-DL-tryptophan methyl ester (1.0 g, 2.8 mmol), diisopropylethylamine (0.4 g, 3 mmol) and 2-adamantylchloroformate (0.65 g, 3 mmol) in 20 mL dry THF was stirred at room temperature for 4 hours. The reaction mixture was diluted with distilled water and extracted with ethyl acetate (4×50 mL). The organic extract was washed with brine and dried over Na2SO4. Evaporation of the organic solvent gave the title compound as a colorless foam (1.0 g, 67.8%).

出典