反应详情

To a suspension of sodium hydrate (0.228 g, 60%, 5.72 mmole) in 15 ml DMF was added nitrile (IV) (1.2 g, 3.9 mmole) and after stirring for 15 minutes at room temperature 1,2-dibromo-ethane (1.1 g, 5.8 mmole) in 1.5 ml DMF was added. The resulting mixture was stirred 0.5 hour at room temperature and then more sodium hydrate (0.114 g, 2.86 mmole) was added and the reaction mixture heated for about 10 minutes at 30-35° C. After cooling the mixture was partitioned between ethylacetate and brine, the organic layer was dried over sodium acetate and concentrated in vacuo. Purification by silica gel column chromatography with 30%-50% ethylacetate in hexane afforded compound (V) 1 g (77% yield).

1. additionwas added
2. temperaturethe reaction mixture heated for about 10 minutes at 30-35° C
3. temperatureAfter cooling the mixture
4. customwas partitioned between ethylacetate and brine
5. dry with materialthe organic layer was dried over sodium acetate
6. concentrationconcentrated in vacuo