Diastereoselectivity in the directed aldol condensation of 2-trimethylsiloxyfuran with aldehydes. A stereodivergent route to threo and erythro δ-hydroxy-γ-lactones
作者:Charles W. Jefford、Danielle Jaggi、John Boukouvalas
DOI:10.1016/s0040-4039(01)83855-7
日期:1987.1
Threo and erythro-δ-hydroxy-α,β-unsaturated γ-lactones are obtained with useful diastereoselection by condensing 2-trimethylsiloxyfuran and aldehydes by varying the reaction reaction conditions. A stereomechanistic rationale is presented together with a practical two-step synthesis of the threo and erythro 5-hydroxy-4-decanolides (L factors).
An efficient and stereocontrolled synthesis of γ-lactones as precursors of the hydroxyethylenedipeptideisostere has been developed, starting from readily available 5-oxotetrahydrofuran-2-carboxylic acid 6.
Synthesis of Lateral Root-Inducing Compounds Using an Efficient Coupling Reaction of Chiral Triflates
作者:Hiyoshizo Kotsuki、Aya Miyazaki、Masamitsu Ochi、James J. Sims
DOI:10.1246/bcsj.64.721
日期:1991.2
Lateral root-inducing compounds, isolated from the bacterium Erwinia quercina, have been synthesized by using a coupling reaction of chiral triflates derived from l- or d- tartrates and their biological activities examined.