Thionyl Chloride → 4-Phenoxybenzene-1-sulfonyl chloride
반응식
[O:1]([C:8]1[CH:13]=[CH:12][C:11]([S:14]([OH:17])(=O)=[O:15])=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.S(Cl)([Cl:20])=O>CN(C=O)C>[O:1]([C:8]1[CH:13]=[CH:12][C:11]([S:14]([Cl:20])(=[O:17])=[O:15])=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1참가 물질
4
실험 절차
The sulphonic acid (2a) was dissolved in an excess of thionyl chloride (30 mL), a catalytic amount of DMF (cat) was added, and the resulting mixture was stirred for 6 h at reflux. The solvent was evaporated and the residue dissolved in Et20 (40 mL). The ether solution was washed with 5% aqueous NaOH (3×40 mL) and water (6×40 mL), dried over anhydrous MgSO4, filtered, and concentrated in vacuo. After drying in high vacuum overnight, the pure product was obtained as a white solid. Yield 63%: 2.09 g, 7.44 mmol, (light yellow syrup). 1H-NMR (CDCl3): δ 7.44 (d, 3J=9.1 Hz, 2H, ArH), 7.38 (d, 3J=9.1 Hz, 2H, ArH), 7.19 (t, 1H, ArH), 7.12 (d, 3J=9.1 Hz, 2H, ArH), 6.98 (d, 3J=9.1 Hz, 2H, ArH)