Total Synthesis of Umuravumbolide and Hyptolide Through Silicon-Tethered Ring-Closing Metathesis
作者:Partha Sarathi Chowdhury、Pradeep Kumar
DOI:10.1002/ejoc.201300302
日期:2013.7
The totalsynthesis of umuravumbolide and hyptolide has been achieved in a efficient manner by using temporary silicon-tethered ring-closing metathesis and cross-coupling reactions as key steps. The stereogenic centres were generated by means of proline-catalysed α-aminoxylation of aldehydes and Brown's asymmetric allylation method.
An efficient stereoselective totalsynthesis of umuravumbolide has been developed. The key features of the synthesis include Jacobsen resolution, Wadsworth Emmons olefination and silyl-tethered ring closing metathesis.