The UV-Vis Spectrum Was Distracted in the Presence of Acetophenone and Some of the Information Is Not Detected So This Test Was Run with Cyclohexanone.

has been cited by the following article:

• TITLE: The Nature of the True Catalyst in Transfer Hydrogenation with Alcohol Donors Using (arene)2Ru2Cl4(II)/TsDPEN Precursor

  AUTHORS: Judith Toubiana, Liraz Medina, Yoel Sasson

  KEYWORDS: Catalytic transfer Hydrogenation (CTH), Asymmetric Transfer Hydrogenation (ATH), Ruthenium Nanoparticles, Ruthenium Complexes, Nanocatalyst, Chiral Nanoparticles

  JOURNAL NAME: Modern Research in Catalysis, Vol.3 No.3, July 15, 2014

  ABSTRACT: The widespread precatalyst (prepared in-situ or ex-situ) (arene) RuTsDPEN advocated for highly effectual asymmetric transfer hydrogenation (ATH) reactions with 2-propanol as hydrogen donor at ambient conditions, is proven to be unstable under the strong reducing conditions prevailing in the reaction mixtures (blend of alcohol and a base such as KOH). We assert that the true catalysts are the ruthenium metal nanoclusters formed swiftly under the reducing conditions of these systems. The TsDPEN ligand plays a critical role in the generation and formatting of the active catalyst including wreaking chiral properties to the so formed catalytic nanoparticles. Kinetic measurements, NMR, UV-visible spectroscopy, circular dichroism (CD) and TEM analyses corroborate this argument.