反应详情

4-Amino-4′-cyanobiphenyl (1.03 g, 5.3 mmol) (TCI) was dissolved in a mixture of 8 ml dichloromethane/2 ml pyridine was treated with ethanesulfonyl chloride (0.61 g, 5.3 mmol) and stirred for 18 h at room temperature. The solution was diluted with dichloromethane and washed twice with 1N HCl. The organic phase was separated, dried over sodium sulfate, filtered, and concentrated in vacuo to afford the title compound. 1H NMR: 7.75 (d,2H,J=8 Hz), 7.67 (d,2H,J=8 Hz), 7.60 (d,2H,J=8 Hz), 7.37 (d,2H,J=8 Hz), 6.90 (s,1H), 3.22 (q,2H,J=8 Hz), 1.45 (t,3H,J=8 Hz).

1. washwashed twice with 1N HCl
2. customThe organic phase was separated
3. dry with materialdried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo