(2S,4'R,5'R)-(E)-tert-Butyl 2-acetyl-2-(2-oxo-5-phenyl-1,3- dioxolan-4-ylmethyl)-5-phenylpent-4-enoate

Abstract

The title compound, C₂₇H₃₀O₆, was prepared by monodihydroxylation of the bis-olefin (E,E)-tert-butyl 2-acetyl-2-cinnamyl-5-phenylpent-4-enoate using standard Sharpless asymmetric dihydroxylation conditions, followed by treatment with 1,1'-carbonyl diimidazole. In the crystal structure, the phenyl rings form an intramolecular edge-to-face C-H… π contact with an interplanar angle of 56.4° and a H…centroid distance of 3.03 Å.