Diastereoselective Formation of Tetrahydrofurans via Pd-Catalyzed Asymmetric Allylic Alkylation: Synthesis of the C13–C29 Subunit of Amphidinolide N
作者:Barry M. Trost、Jullien Rey
DOI:10.1021/ol302409g
日期:2012.11.16
An efficient synthesis of the C13-C29 fragment of amphidinolide N is described. The synthesis relies on a new strategy involving Pd-catalyzed asymmetric allylic alkylation to generate diastereoselectively the cis- or trans-THF unit simply by varying the enantiomer of the ligand. The C19 hydroxyl-bearing stereocenter was introduced using a chelation-controlled allylation which led exclusively to a single diastereoisomer.