Organic Letters p. 71 - 74 (1999)
Update date:2022-08-05
Topics:
Burke, Steven D.
Sametz, Geoffrey M.
(equation presented) Total syntheses of KDO and 2-deoxy-β-KDO are reported. The C2-symmetric dienediol 4 was desymmetrized by conversion to its corresponding 1,4-dioxanone 5. Ireland-Claisen rearrangement of 5 provided the 6-vinyldihydropyran-2-carboxylate template 6. Double-Sharpless asymmetric dihydroxylation gave the tetraol 7a, which was converted to KDO and 2-deoxy-β-KDO using methods similar to those previously reported. This synthetic scheme provides a flexible route to KDO and KDO analogues.
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