反応 #1265353

反応方程式

compound 4

{2-[2-(2-{2-[2-(2-Azido-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-acetic acid tert-butyl ester

acetic acid

→

compound 5

収率 96.0%

{2-[2-(2-{2-[2-(2-Amino-ethoxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-acetic acid tert-butyl ester

収率 96.0%

溶媒

ethanol

反応条件

後処理

1. 1
   ろ過filtered
2. 2
   その他to remove Pd/C
3. 3
   濃縮The filtrate was concentrated in vacuo
4. 4
   洗浄eluted with CH2Cl2:MeOH 20:1 to 10:1 (v/v)

実験手順

To a solution of compound 4 (1.0 g, 2.4 mmol) in ethanol (20 mL) was added 10% Pd/C (0.3 g) and acetic acid (0.3 mL). The resulting mixture was stirred under an atmosphere of hydrogen for 16 hours and then filtered to remove Pd/C. The filtrate was concentrated in vacuo and the residue was loaded onto a silica gel gravity column (100 g) and eluted with CH2Cl2:MeOH 20:1 to 10:1 (v/v) to afford compound 5 as a oil (0.90 g, 96%).

出典