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2.65 ml (42 mmol) of chloroacetonitrile were added to a suspension of 7.5 g (42 mmol) of toluene-3-sulphinic acid sodium salt in 80 ml of DMF and stirred at 100° for 1 hr. The reaction solution was evaporated, the residue was partitioned between H2O and CH2Cl2. The aqueous phase was washed three times with CH2Cl2. The combined organic phases were washed once with H2O, dried (MgSO4). filtered and evaporated. Chromatography (SiO2, CH2Cl2) yielded 2.06 g (25%) of (toluene-3-sulphonyl)-acetonitrile as a colorless oil.

1. customThe reaction solution was evaporated
2. customthe residue was partitioned between H2O and CH2Cl2
3. washThe aqueous phase was washed three times with CH2Cl2
4. washThe combined organic phases were washed once with H2O
5. dry with materialdried (MgSO4)
6. filtrationfiltered
7. customevaporated