反应详情

NaH (440 mg of a 60% dispersion in mineral oil, 11 mmole) was washed free of mineral oil, and suspended in 20 mL of DMF. This was treated with a solution of diethyl phenylmalonate (2.36 g, 10 mmole) in 10 mL of DMF, and the reaction was stirred for 15 minutes, at which time the solution was clear. 2-Methylallyl bromide (2.0 mL) was added, and stirring continued for 1 hour. The reaction was diluted with H2O and extracted with Et2O. The extracts were washed with H2O, dried and the solvent removed and gave the titled compound, 2.85 g (95% yield). MS (ESI) 291 (MH+)

1. washNaH (440 mg of a 60% dispersion in mineral oil, 11 mmole) was washed free of mineral oil
2. stirringstirring
3. waitcontinued for 1 hour
4. extractionextracted with Et2O
5. washThe extracts were washed with H2O
6. customdried
7. customthe solvent removed