Benzoporphyrins via an olefin ring-closure metathesis methodology
Abstract
A new route to benzoporphyrins is reported in which readily available vicinal dibromoporphyrins are bis-allylated using the Suzuki reaction, cyclized by way of olefin metathesis and finally oxidized to give mono-, di-, or tri-benzoporphyrins. © The Royal Society of Chemistry 2006.
This paper has been withdrawn.