One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Computed Properties of C10H9NO, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 1008-75-9, Name is 3-Methyl-5-phenylisoxazole, molecular formula is C10H9NO
Asymmetric Hydrogenation of Isoxazolium Triflates with a Chiral Iridium Catalyst
The iridium catalyst [IrCl(cod)]2?phosphine?I2(cod=1,5-cyclooctadiene) selectively reduced isoxazolium triflates to isoxazolines or isoxazolidines in the presence of H2. The iridium-catalyzed hydrogenation proceeded in high-to-good enantioselectivity when an optically active phosphine?oxazoline ligand was used. The 3-substituted 5-arylisoxazolium salts were transformed into 4-isoxazolines with up to 95:5 enantiomeric ratio (e.r.). Chiral cis-isoxazolidines were obtained in up to 89:11 e.r., with no formation of their trans isomers, when the substrates had a primary alkyl substituent at the 5-position. The mechanistic studies indicate that the hydridoiridium(III) species prefers to deliver its hydride to the C5 atom of the isoxazole ring. The hydride attack leads to the formation of the chiral isoxazolidine via a 3-isoxazoline intermediate. Meanwhile, in the selective formation of 4-isoxazolines, hydride attack at the C5 atom may be obstructed by steric hindrance from the 5-aryl substituent.
Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Computed Properties of C10H9NO, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1008-75-9, in my other articles.
Reference£º
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem