Dq. Xu et Kb. Sharpless, SYNTHESIS AND STEREOCHEMICAL ASSIGNMENTS FOR GONIOBUTENOLIDE-A AND GONIOBUTENOLIDE-B, Tetrahedron letters, 35(27), 1994, pp. 4685-4688
Goniobutenolides A and B and their C-7 epimers are stereoselectively s
ynthesized using osmium-catalyzed asymmetric dihydroxylation (AD) as t
he key transformation. The relative and absolute stereochemistry gf th
e natural goniobutenolides A and B are assigned with reference to the
spectral data and optical rotations from the literature.