反应详情

To a suspension of the 4-(methyl-O-methylhydroxylamine)-2-fluorophenoxymethyl-copoly(styrene-1% divinylbenzene)resin (0.10 g, 0.14 mmol) in dry DMF (2 ml) is added 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide hydrochloride (0.08 g, 0.42 mmol, 3 eq.). To the mixture is then added phenylacetic acid (0.06 g, 0.42 mmol, 3 eq.). The mixture is shaken overnight. The resin is filtered and washed with DMF (×5), THF: H2O (3:1, ×5), THF (×3), MeOH (×3) and DCM (×3). To the resin is added TFA (1 ml) and DCM (1 ml) and the mixture shaken for 1 hour. The mixture is filtered into a tared vial and the resin washed with DCM (×2) and toluene (×2). The combined filtrates are evaporated in vacuo to yield N-hydroxy-phenyl-acetamide (0.0084 g, 39%). LCMS gives 151 [M+].

1. filtrationThe resin is filtered
2. washwashed with DMF (×5), THF: H2O (3:1, ×5), THF (×3), MeOH (×3) and DCM (×3)
3. additionTo the resin is added TFA (1 ml) and DCM (1 ml)
4. stirringthe mixture shaken for 1 hour
5. filtrationThe mixture is filtered into a tared vial and the resin
6. washwashed with DCM (×2) and toluene (×2)
7. customThe combined filtrates are evaporated in vacuo