反应详情

5.5 g of (cis-3-allylcyclohexyloxy)-tert-butyl-diphenylsilane are dissolved in 100 ml of diethyl ether, and 9.4 g of sodium periodate, dissolved in 100 ml of water, are added. At 0° C., 15 ml of an osmium tetroxide solution (2.5% by weight in tert-butanol) are added, and the mixture is stirred vigorously at room temperature. After 5 hours, a further 5 g of sodium periodate are added, and the mixture is stirred at room temperature for another 3 hours. The reaction mixture is then diluted by addition of 300 ml of methyl tert-buthyl ether and washed with saturated sodium thiosulfate solution. The organic phase is dried over magnesium sulfate and the solvent is then removed under reduced pressure. This gives 6 g of [cis-3-(tert-butyl-diphenylsilanyloxy)cyclohexyl]acetaldehyde as a yellow-brown oil. C24H32O2Si (380.61), MS(ESI): 381 (M+H+), Rf(n-heptane:ethyl acetate=5:1)=0.44.

1. additionare added
2. stirringthe mixture is stirred at room temperature for another 3 hours
3. additionThe reaction mixture is then diluted by addition of 300 ml of methyl tert-buthyl ether
4. washwashed with saturated sodium thiosulfate solution
5. dry with materialThe organic phase is dried over magnesium sulfate
6. customthe solvent is then removed under reduced pressure