反应详情

A mixture of tri-n-butylphosphine (18.9 g, 103.8 mmol) in toluene (50 mL) was added dropwise to a mixture of α,α'-dichloro-o-xylene (7.0 g, 34.6 mmol) in toluene (200 mL) under argon gas. The reaction mixture was allowed to stir for several days at room temperature under argon, at which time TLC examination showed completion of reaction. Toluene was removed under reduced pressure to give an oily residue. The above oily residue was washed with toluene/hexane (50/50 (v/v), 4×100 mL), and then dried to give a colorless oil. 1H NMR (CDCl3) δ 0.89 (t, 9H), 1.43 (m, 12H), 2.52 (m, 6H), 4.41 (d, 2H), 4.88 (s, 2H), 7.33 (m, 2H), 7.45 (m, 1H), 7.52 (m, 1H).

1. customcompletion of reaction
2. customToluene was removed under reduced pressure
3. customto give an oily residue
4. washThe above oily residue was washed with toluene/hexane (50/50 (v/v), 4×100 mL)
5. customdried
6. customto give a colorless oil