Asymmetric dihydroxylation of primary allylic halides and a concise synthesis of (−)-diepoxybutane
摘要:
Tire asymmetric dihydroxylation (AD) of primary allylic halides is described. Enantiomeric excesses range from 40 to 98%. Subsequent base treatment gives epoxy alcohols in high yields. This strategy is further illustrated by the synthesis of (-)-diepoxybutane, an important C-4-chiral building block.