Formal synthesis of pinolide via l-proline-catalyzed sequential α-aminooxylation, Horner–Wadsworth–Emmons olefination and Sharpless asymmetric dihydroxylation
作者:Anil M. Shelke、Gurunath Suryavanshi
DOI:10.1016/j.tetasy.2016.01.005
日期:2016.2
A convergent, formal enantioselective synthesis of pinolide, a new nonenolide, has been achieved with high enantiomeric purity (99% ee) starting from readily available raw materials. The main highlight of the synthetic strategy is the application of L-proline catalyzed sequential alpha-aminooxylation and Horner-Wadsworth-Emmons olefination of an aldehyde, Sharpless asymmetric dihydroxylation and Steglich esterification as the key steps for the construction of a key chiral intermediate of the target molecule. (C) 2016 Elsevier Ltd. All rights reserved.