Scalable Synthesis of Enantiomerically Pure <i>syn</i>-2,3-Dihydroxybutyrate by Sharpless Asymmetric Dihydroxylation of <i>p</i>-Phenylbenzyl Crotonate
作者:Daniel J. Smaltz、Andrew G. Myers
DOI:10.1021/jo2016746
日期:2011.10.21
An efficient four-step synthetic route to the useful chiral building block (2R,3S)-dihydroxybutyric acid acetonide in >95% ee is detailed. The sequence is readily scaled, requires no chromatography, and allows for efficient recycling of p-phenylbenzyl alcohol, an expedient for enantio- and diastereoenrichment by recrystallization.