反应详情

温度

90 °C

To (4-cyano-2-methyl-phenyl)boronic acid (1.75 g, 10.90 mmol), nickel iodide (0.10 g, 0.33 mmol), (1S,2S)-2-aminocyclohexan-1-ol (0.05 g, 0.33 mmol) and NaHMDS (2.01 g, 10.90 mmol) in isopropanol (10 mL) under an atmosphere of nitrogen was added 3-iodooxetane (1.00 g, 5.40 mmol) in isopropanol (1 mL) via cannula. The reaction mixture was heated at 90° C. for 2 hours, then cooled, diluted with ethanol (20 mL) and filtered over Celite®. The filtrate was concentrated in vacuo, then the residue was purified by silica gel column chromatography using 0-60% EtOAc/hexane as eluant to give 3-methyl-4-(oxetan-3-yl)benzonitrile (0.62 g, 65%) as a white solid. ESI-MS m/z calc. 173.1. Found 174.3 (M+1)+; Retention time: 1.09 minutes (3 min run).

1. temperaturecooled
2. filtrationfiltered over Celite®
3. concentrationThe filtrate was concentrated in vacuo
4. customthe residue was purified by silica gel column chromatography