Highly stereoselective couplings of carbohydrate lactones with terpene ketones promoted by SmI2
作者:Eric J. Enholm、Shujun Jiang
DOI:10.1016/s0040-4039(00)60008-4
日期:1992.10
Lactone 3-deoxycarbohydrates were reacted with samarium diiodide (SmI2) in THF/HMPA and the terpene ketones, (−)-menthone or (+)-dihydrocarvone; a serial reductive deoxygenation and an attendant carbonyl addition reaction afforded C2 branched sugars with high diastereoselectivities (up to 99:1).