Synthesis of Highly Substituted Pyrroles via Nucleophilic Catalysis
作者:Simbarashe Ngwerume、Jason E. Camp
DOI:10.1021/jo1011448
日期:2010.9.17
tri-, and tetrasubstituted pyrroles is described. This regioselective one-pot method relies on nucleophilic catalysis of the intermolecular addition of oximes to activated alkynes and thermalrearrangement of the in situ generated O-vinyl oximes to form pyrroles that contain a functional group handle at the C3/C4 position.
Gold-catalysed rearrangement of O-vinyl oximes for the synthesis of highly substituted pyrroles
作者:Simbarashe Ngwerume、Jason E. Camp
DOI:10.1039/c0cc04372a
日期:——
O-Vinyl oximes were synthesised from the reaction of oximes with activated alkynes and subsequently rearranged using gold catalysis to afford highly substituted pyrroles in an efficient and regiocontrolled process. Additionally, pyrroles were formed directly from oximes and activated alkynes in a multifaceted catalysis process.
Resonance Raman Study of New Pyrrole‐Anchoring Dyes for NiO‐Sensitized Solar Cells
作者:Gareth H. Summers、Grace Lowe、Jean‐François Lefebvre、Simbarashe Ngwerume、Maximilian Bräutigam、Benjamin Dietzek、Jason E. Camp、Elizabeth A. Gibson
DOI:10.1002/cphc.201600846
日期:2017.2.17
conventional 4‐aminobenzoic acid moiety (P1 and 4). All three components, the anchor, the linker and the acceptor group were found to alter both the electronic structure following excitation and the overall solar cell performance. The bodipy acceptor gave a better performance than the maleonitrile acceptor when the pyrrole anchor was used, which is the opposite of the triphenylamine push–pull dyes. The linker