A Tandem, Nitroalkene Conjugate Addition/[3+2] Cycloaddition Approach to the Synthesis of the Pentacyclic Core of (±)-Scandine
作者:Scott E. Denmark、Jeromy J. Cottell
DOI:10.1002/adsc.200600301
日期:2006.11
(1) a tandem nitroalkene conjugate addition/[3+2] cycloaddition of the resulting silylnitronate and (2) an intramolecular Heck reaction of an aryl iodide with a γ-disubstituted allylic alcohol which set a highly congested, quaternary stereogenic center with the concomitant formation of an aldehyde. Intramolecular reductive amination with this aldehyde completed the pentacyclic core.