Total Synthesis of Ustiloxin D and Considerations on the Origin of Selectivity of the Asymmetric Allylic Alkylation
作者:Andrew M. Sawayama、Hiroko Tanaka、Thomas J. Wandless
DOI:10.1021/jo048854f
日期:2004.12.1
C9. The chiral aryl−alkyl ether was assembled using a Pd-catalyzed asymmetric allylicalkylation that notably delivered a product with stereochemistry opposite to that predicted by precedent. The linear tetrapeptide was subsequently cyclized to produce ustiloxin D. The mechanistic origin of the allylicalkylationselectivity was further investigated, and a working hypothesis for the origin of the observed