A Practical Synthesis of Enantiopure (R)
β
Gebauer, Olaf ;BrΓΌckner, Reinhard
π
Article
π
1996
π
John Wiley and Sons
π
English
β 590 KB
## Abstract The title compound __R__β4a was prepared from (β)βquinic acid (1) in 6 steps in 18% overall yield (Scheme 3) and with 100% enantiomeric purity (Figure 1). The initiating step is the regioβ and stereoselective acetalization of the __trans__βoriented vicinal OH groups of 1 (+ 5 β 8). Alco