Diastereoselectivity in Epoxidation of Carbohydrate Fused [13]-Macro-dilactones
作者:W. Sean Fyvie、Mark W. Peczuh
DOI:10.1021/jo800027y
日期:2008.5.1
DMDO epoxidation of carbohydrate fused [13]-macro-dilactones was found to be highly diastereoselective. Facial selectivity of the epoxidation depended on the identity of the fused carbohydrate. Gluco-configured macro-dilactones gave the R,R epoxide, whereas the galacto- configuration gave the S,S epoxide. The epoxide stereochemisty was confirmed by independent syntheses of dimethyl 4R,5R-epoxyoctanedioate