| Literature DB >> 19812680 |
Derek T Craft1, Benjamin W Gung.
Abstract
A 14-membered macrocycle with an allene and a furan strategically located at across the ring from each other is synthesized using an allene ring closing metathesis reaction. Upon treatment of the macrocycle with a catalytic amount of Pd(OAc)(2) and other additives, the first transannular [4+3] cycloaddition occurred to yield 37% of a tetracyclic compound containing the ABC ring structure of the natural products cortistatins.Entities:
Year: 2008 PMID: 19812680 PMCID: PMC2597840 DOI: 10.1016/j.tetlet.2008.07.155
Source DB: PubMed Journal: Tetrahedron Lett ISSN: 0040-4039 Impact factor: 2.415