反应详情

温度

0 °C

To a suspension of PCC (161.5 g, 0.75 mol) in DCM (1000 mL) was added 4-(tert-butyl dimethylsilyl oxy)butan-1-ol (102.0 g, 0.5 mol) in 500 mL of DCM, the mixture was stirred for about 1 hr at 0° C., then was warmed to RT and stirred for 2 hours. Then the mixture was filtered and the filtrate was concentrated in vacuo to give the desired compound of 4-(tert-butyldimethylsilyloxy)butanal (5) (121.2 g, yield 60%) as yellow oil which was purified by column chromatography on silica gel (eluent: PE:EA=50:1). 1H NMR (300 MHz, CDCl3): δ 0.04 (S, 6H), 0.0854 (S, 9H), 1.747 (m, 2H), 3.595 (d, J=12 Hz, 1H), 9.677 (d, J=3.3 Hz, 1H); LC-MC found 203 (M+H)+.

1. temperaturewas warmed to RT
2. stirringstirred for 2 hours
3. filtrationThen the mixture was filtered
4. concentrationthe filtrate was concentrated in vacuo