Tucker, Joseph W.; Stephenson, Corey R. J. published the article 《Tandem Visible Light-Mediated Radical Cyclization-Divinylcyclopropane Rearrangement to Tricyclic Pyrrolidinones》. Keywords: visible light radical cyclization bromocyclopropylderivative divinylcyclopropane rearrangement; tricyclic pyrrolidinone preparation.They researched the compound: [Ir(dtbbpy)(ppy)2]PF6( cas:676525-77-2 ).Reference of [Ir(dtbbpy)(ppy)2]PF6. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:676525-77-2) here.
Visible light promoted single electron reduction of bromocyclopropyl cyclization scaffolds enabled by photoredox catalysis initiates a novel tandem radical cyclization/sigmatropic rearrangement to generate tricyclic pyrrolidinones having considerable mol. complexity, e.g. I, from simple, readily available starting materials. Furthermore, subtle variations to substrate structure afford a wide array of reaction diversity.
In some applications, this compound(676525-77-2)Reference of [Ir(dtbbpy)(ppy)2]PF6 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”