[O:1]=[S:2]1(=[O:10])[CH2:6][CH2:5][CH2:4][N:3]1[CH2:7][CH2:8]O.O=S(Cl)[Cl:13].C([O-])(O)=O.[Na+]>C(Cl)Cl>[Cl:13][CH2:8][CH2:7][N:3]1[CH2:4][CH2:5][CH2:6][S:2]1(=[O:10])=[O:1]To a solution of 2-(1,1-dioxo-1λ6-isothiazolidin-2-yl)-ethanol (0.14 g, 0.847 mmol) in DCM (4 mL) was added SOCl2 (0.151 g, 1.27 mmol) and the reaction mixture was heated to 40° C. for 2 h. The mixture was cooled to room temperature, diluted with DCM, poured into a sat. NaHCO3 solution (10 mL) and the aqueous layer was extracted with DCM (2×20 mL). Combined organics were dried over Na2SO4, filtered and evaporated to dryness to give the title compound (0.046 g, 30%) as an orange oil which was used with no further purification. MS: 184.1 (M+H+).
Loading…
