An Efficient Synthesis of (±)-Grandisol Featuring 1,5-Enyne Metathesis
作者:Thomas J. A. Graham、Erin E. Gray、James M. Burgess、Brian C. Goess
DOI:10.1021/jo9020375
日期:2010.1.1
An eight-step synthesis of (±)-grandisol features a key sequence involving a high-yielding, microwave-assisted enyne metathesis to yield a 1-alkenylcyclobutene that is semihydrogenated to yield a silyl-protected grandisol. Metathesis catalyst screens revealed an intriguing trend whereby substrate conversion correlated strongly with the identity of the ligands on the catalyst. In addition, new reactivity