A rigid anionic Janus bis(NHC) – new opportunities in NHC chemistry
Nabila Rauf Naz, Gregor Schnakenburg, Zsolt Kelemen, Dalma Gál, László Nyulászi, Renè T. Boeré, Rainer Streubel
Abstract
A phosphanido-type bridged bis(imidazolium) salt, readily prepared in two steps via reductive deselenization of a tricyclic 1,4-diphosphinine diselone, affords access to a novel anionic P-functional tricyclic bis(NHC) via deprotonation. The former also offers a P-functionalization/deprotonation sequence to access the first mixed P-substituted tricyclic bis(NHCs), as well as coordination of the phosphorus centers to rhodium(i) fragments.
Topics & Concepts
JanusChemistryPhosphorusCoordination complexStereochemistryCombinatorial chemistryMedicinal chemistryPolymer chemistryOrganic chemistryNanotechnologyMaterials scienceMetalN-Heterocyclic Carbenes in Organic and Inorganic ChemistryCatalytic Cross-Coupling ReactionsOrganoboron and organosilicon chemistry