反应详情

A mixture of 39.6 g of butyl fur-3-yl-glycolate and 8.6 g of lead tetraacetate in 400 ml of absolute benzene is refluxed for 8 hours. After cooling to room temperature, the salts are filtered off and washed with benzene, and the combined benzene phases are shaken with a 10% strength sodium bicarbonate solution and a saturated sodium chloride solution. After drying over sodium sulphate, filtering off and concentrating, the oily residue is distilled in vacuo. 32.7 g (83%) of an oil, boiling point 80° C. (0.3 Torr), nD20 =1.477, are obtained.

1. temperatureis refluxed for 8 hours
2. filtrationthe salts are filtered off
3. washwashed with benzene
4. dry with materialAfter drying over sodium sulphate
5. filtrationfiltering off
6. concentrationconcentrating
7. distillationthe oily residue is distilled in vacuo