反应详情

A solution of 5-bromo-2-ethylpyridine (500 mg, 2.69 mmol), N-bromosuccinimide (484 mg, 2.69 mmol) and 2,2′-azo-bis(isobutyronitrile) (5 mg, 0.03 mmol) in chloroform is heated at reflux for 2 h. After stirring over night at room temperature, the reaction mixture is filtered, evaporated under reduced pressure and purified by preparative reversed-phase HPLC (Gilson, XBridge, gradient of acetonitrile in water, 0.1% HCOOH). Yield: 37 mg (5% of theory); Retention time HPLC: 0.89 min (Z011_S03).

1. temperatureat reflux for 2 h
2. filtrationthe reaction mixture is filtered
3. customevaporated under reduced pressure
4. custompurified by preparative reversed-phase HPLC (Gilson, XBridge, gradient of acetonitrile in water, 0.1% HCOOH)
5. custom0.89 min (Z011_S03)