A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer, molecular formula is C12H12Cl4Ru2. In a Article£¬once mentioned of 37366-09-9, Formula: C12H12Cl4Ru2
Planar chirality in tethered eta6:eta1-(phosphinophenylenearene-P)ruthenium(II) complexes and their potential use as asymmetric catalysts
Reaction of 2-dicyclohexylphosphinobiphenyl with [(eta6-benzene)RuCl2]2 yielded the tethered complex [Ru(eta6:eta1-dicyclohexylphosphinobiphenyl-P)Cl2 ], 1, rather than a bridge-splitting product, [(eta6-benzene)Ru(L)Cl2], that is often observed. Treatment of [(eta6-benzene)RuCl2]2 with 2-dicyclohexylphosphino-2?-(N,N-dimethylamino)biphenyl yielded the planar chiral, tethered complex [Ru(eta6:eta1-2-dicyclohexylphosphino-2-?-(N,N-d imethylamino)biphenyl-P)Cl2], 2. Abstraction of a chloride from 2 with AgSbF6 and treatment with PPh3 selectively gave the chiral-at-metal complex [anti-Ru(eta6:eta1-2-dicyclohexylphosphino-2?-(N ,N-dimethylamino)-biphenyl-P) (PPh3)Cl]SbF6, 3a, which underwent spontaneous resolution upon crystallization. The Me2N group is coplanar with the eta6-phenyl ring in the cations and directs attack at the metal center, as well as determining the thermodynamic stability of anti versus syn epimers. The dication derived from enantiopure 3a catalyzed the Diels-Alder reaction of methacrolein and cyclopentadiene with modest (19-23%) enantioselectivity. Analogues of 2 and 3a containing 2-(dicyclohexylphosphino)-2?-methylbiphenyl were also prepared. We have found that epimerization at the metal center is slow in these compounds. Averaged NMR spectra at ambient temperatures are observed, however, due to rapid conformational interconversions that can be slowed at low temperature.
Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Formula: C12H12Cl4Ru2. In my other articles, you can also check out more blogs about 37366-09-9
Reference£º
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI