Synthesis of 2-Methyl-<scp>d</scp>-erythritol via Epoxy Ester−Orthoester Rearrangement
作者:José-Luis Giner、William V. Ferris,、Joseph J. Mullins
DOI:10.1021/jo020168y
日期:2002.7.1
epoxy ester[bond]orthoester rearrangement has been applied to a new synthesis of 2-methyl-D-erythritol, a branched five-carbon sugar of importance to the deoxyxylulose pathway of isoprenoid biosynthesis. The intermediate orthoacetate is one of the few [2.2.1]-orthoesters to have been reported. Labeling studies with O-18 indicated that this reaction proceeds exclusively via a 5-exo cyclization. NMR analysis