The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Carbene-Mediated Functionalization of the Anomeric C-H Bond of Carbohydrates: Scope and Limitations》. Authors are Boultadakis-Arapinis, Melissa; Prost, Elise; Gandon, Vincent; Lemoine, Pascale; Turcaud, Serge; Micouin, Laurent; Lecourt, Thomas.The article about the compound:Dirhodium(II) tetrakis(caprolactam)cas:138984-26-6,SMILESS:C12=O[Rh+2]3(O=C4[N-]5CCCCC4)([N-]6C(CCCCC6)=O7)[N-](CCCCC8)C8=O[Rh+2]357[N-]1CCCCC2).Category: ruthenium-catalysts. Through the article, more information about this compound (cas:138984-26-6) is conveyed.
Herein we investigate the scope and limitations of a new synthetic approach towards α- and β-ketopyranosides relying on the functionalization of the anomeric C-H bond of carbohydrates by insertion of a metal carbene. A key bromoacetate grafted at the 2-position is the cornerstone of a stereoselective glycosylation/diazo-transfer/quaternization sequence that makes possible the construction of a quaternary center with complete control of the stereochem. This sequence shows a good tolerance toward protecting groups commonly used in carbohydrate chem. and gives rise to quaternary disaccharides, e.g. I, with good efficiency. In the case of a disaccharide with a more restricted conformation, this functionalization process can be hampered by the steric demand next to the targeted anomeric position. In addition, the formation of transient orthoesters during the glycosylation step may also reduce the overall efficiency of the synthetic sequence.
After consulting a lot of data, we found that this compound(138984-26-6)Category: ruthenium-catalysts can be used in many types of reactions. And in most cases, this compound has more advantages.
Reference:
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI