1571072-62-2

Upstream product

• 25364-44-7 N-(2,4,6-trimethylphenyl)imidazole 
• 1940-57-4 9H-fluoren-9-yl bromide 
• 1571072-58-6 1-(fluoren-9-yl)-3-(2,4,6-trimethylphenyl)imidazolium bromide 
• 1571072-60-0 1-mesityl-3-(fluorenide-9-yl)imidazolium 
• 74-88-4 methyl iodide 

Relevant academic research and scientific papers

Metal-assisted conversion of an N-ylide mesomeric betaine into its carbenic tautomer: Generation of N-(fluoren-9-yl)imidazol-2-ylidene complexes

Whereas the N-ylide mesomeric betaine 2, consisting of a fluorenyl anion directly attached to an imidazolium ring, is not in equilibrium with its putative free N-(fluoren-9-yl)imidazol-2-ylidene tautomer, its reaction with a metallic centre induces its interconversion to yield the corresponding monoligated N-heterocyclic carbene complex (Au(i) and Rh(i)). Deprotonation of 2 and coordination to the RhI(COD) fragment allows the isolation of complex 7 displaying a rarely observed four-membered NHC-containing metallacycle and an enforced η1-fluorenyl ligand. Upon reaction with CpFe(CO)2I precursor, insertion of a carbonyl ligand into the Fe-fluorenyl bond occurs and yields the acyl-Fe complex 8.