반응식
[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]#[N:10].[CH3:11]I.[H-].[Na+]>CN(C)C=O>[Br:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH:8]([CH3:11])[C:9]#[N:10]참가 물질
실험 절차
18.9 g (96.41 mmol) of (2-bromophenyl)-acetonitrile and 31.41 g (221.74 mmol) of methyl iodide are dissolved in 150 ml of N,N-dimethylformamide. At 0° C., 8.87 g (221.74 mmol) of sodium hydride (as 60% suspension in oil) is added in portions, and the batch is stirred overnight at room temperature. The reaction mixture is poured into ice water and worked up as usual. Since the compound that is isolated after chromatography (20.9 g) still contains 2-(2-bromophenyl)-propionitrile in addition to the desired product, the entire amount is reacted another time with the same amounts of reagent. This reaction also yields only material that still contains mono-methyl compound. After another alkylation with 15 g of methyl iodide and 4.45 g of sodium hydride in 150 ml of N,N-dimethylformamide, 18.57 g of the desired compound is isolated.
출처 및 근거
- ORD 기록
- ord-31db7e65508346c8813665efda1932c5
- 출처 데이터셋
- uspto-grants-2009_12
- 특허 번호
- US07638515B2
연결된 노트
불러오는 중…