反应详情

A flask was charged with sodium p-toluenesulfinate (19.28 g, 108 mmol) and NaI (16.22 g, 108 mmol) in dry MeCN (360 mL). The reaction mixture was bubbled through with argon for 15 min followed by addition of 4-chlorostyrene (9.09 mL, 72.2 mmol) and (NH4)2Ce(NO3)6 (79 g, 144 mmol). The reaction mixture was stirred for 18 h under argon atmosphere at room temperature. Then the solvent was evaporated under reduced pressure and the residue was partitioned between H2O (400 mL) and DCM (500 mL). The layers were separated and the aqueous phase was extracted with DCM (200 mL). The organic layer was washed with saturated aqueous Na2S2O3 (150 mL), brine (150 mL), dried over Na2SO4, filtered and evaporate to dryness to afford 28.5 g (94%) of the desired product.

1. customThe reaction mixture was bubbled through with argon for 15 min
2. customThen the solvent was evaporated under reduced pressure
3. customthe residue was partitioned between H2O (400 mL) and DCM (500 mL)
4. customThe layers were separated
5. extractionthe aqueous phase was extracted with DCM (200 mL)
6. washThe organic layer was washed with saturated aqueous Na2S2O3 (150 mL), brine (150 mL)
7. dry with materialdried over Na2SO4
8. filtrationfiltered
9. customevaporate to dryness