85237-73-6Relevant academic research and scientific papers
Synthesis of ruthenium N-heterocyclic carbene complexes and their catalytic activity for β-alkylation of tertiary cyclic amines
?zdemir, Ismail,Dü?ünceli, Serpil Demir,Kalo?lu, Nazan,Achard, Mathieu,Bruneau, Christian
, p. 311 - 315 (2015)
The novel ruthenium N-Heterocyclic carbene complexes are synthesized, and characterized by studying its 1H, 13C, elemental analysis, and X-ray. These complexes have been reported as promising catalyst for β C-H bond functionalization of tertiary cyclic amines through hydrogen autotransfers in the presence of external acidic additive. The new catalytic products were characterized by 1H NMR, 13C NMR spectroscopic methods.
N-heterocyclic carbene based ruthenium complexes for selective β-C(sp3)-H functionalization of N-fused saturated cyclic amines
Kalo?lu, Nazan
, p. 2265 - 2272 (2019/03/13)
Herein, a series of new ruthenium(II) complexes with the general molecular formula [RuCl2(arene)(NHC)], (arene = η6-p-cymene, NHC = N-heterocyclic carbene) were synthesized from in situ prepared silver(I)-NHCs by the transmetallation method. These complexes were fully characterized by analytical and spectral methods. Ruthenium(II) complexes were tested as promising catalyst for selective β-C(sp3)-H functionalization of N-methylpiperidine with various aldehydes through hydrogen transfers in presence of external acidic additive. These eco-friendly cross-dehydrogenative couplings enable the production of C(3)-alkylated N-methylpiperidine derivatives without enamines with only carbon dioxide and water as benign by-product.
Ruthenium(II) and iridium(III) complexes featuring NHC-sulfonate chelate
Rajaraman,Sahoo,Hild,Fischmeister,Achard,Bruneau
, p. 17467 - 17472 (2015/10/19)
Three new complexes bearing a chelating (κ2C,O) NHC-SO3 ligand have been prepared. An original method for the synthesis of the imidazolium-sulfonate NHC precursor is described. The 5-membered ruthena- and irida-cycle containing complexes were fully characterized and evaluated in a series of catalytic transformations involving hydrogen auto-transfer processes.
