Switchable Palladium-Catalyst Reaction of Bromomethyl Sulfoxides, CO, and N-Nucleophiles: Aminocarbonylation at Csp<sup>3</sup> versus Oxidative Carbonylation of Amines
作者:Cristian Mollar、Carmen Ramirez de Arellano、Mercedes Medio-Simón、Gregorio Asensio
DOI:10.1021/jo301778n
日期:2012.11.2
primary or secondary amines. The reaction with ambident nucleophiles such as amino alcohols was highly selective and took place exclusively at the amino group despite the presence of the alcohol functionality. In parallel to the reaction paths for simple amines, amino alcohols were converted into hydroxysulfinyl amides when the reaction was catalyzed by Pd-xantphos, while Pd(PPh3)4 catalyst afforded cyclic
New Catalysts for Asymmetric Oxidation of Prochiral Sulfides Based on Vanadium Complexes with Levopimaric Acid Derivatives
作者:V. N. Konev、I. V. Eltsov、Z. P. Pai、T. B. Khlebnikova
DOI:10.1134/s0023158422060076
日期:2022.12
The formation of vanadium complexes with synthesized enantio- and diastereomerically pure polydentate tetrahydrosalicylidene ligands of the diterpene series was studied using UV, visible, and 51V NMR spectroscopy. The obtained catalystcomplexes were tested in the oxidation of prochiral sulfides with an aqueous 35% hydrogen peroxide solution. The studies on the oxidation of prochiral sulfides showed