Smaltz DJ, Myers AG. Scalable synthesis of enantiomerically pure syn-2,3-dihydroxybutyrate by Sharpless asymmetric dihydroxylation of p-phenylbenzyl crotonate.
J Org Chem 2011;
76:8554-9. [PMID:
21895005 DOI:
10.1021/jo2016746]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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.
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