反应详情

3.37 g (28 mmol) of bromoacetonitrile and 640 mg (2.8 mmol) of benzyltriethylammonium chloride are added to a solution of 5 g (28 mmol) of sodium 4-methyl-benzenesulfinate in 50 ml of toluene and 50 ml of dimethylformamide. The reaction mixture is stirred at room temperature for 24 h. The heterogeneous mixture is filtered. The filtrate is evaporated and then purified on silica gel (heptane then heptane/ethyl acetate, 60/40 v/v). The product is triturated in heptane then filtered and dried. 2.95 g of (toluene-4-sulfonyl)-acetonitrile is obtained in the form of a pale yellow powder. (Yield=54%).

1. filtrationThe heterogeneous mixture is filtered
2. customThe filtrate is evaporated
3. custompurified on silica gel (heptane
4. customThe product is triturated in heptane
5. filtrationthen filtered
6. customdried