35449-57-1Relevant articles and documents
Computational and Experimental Study of Turbo-Organomagnesium Amide Reagents: Cubane Aggregates as Reactive Intermediates in Pummerer Coupling
Planas, Ferran,Kohlhepp, Stefanie V.,Huang, Genping,Mendoza, Abraham,Himo, Fahmi
, p. 2767 - 2773 (2021)
The dynamic equilibria of organomagnesium reagents are known to be very complex, and the relative reactivity of their components is poorly understood. Herein, a combination of DFT calculations and kinetic experiments is employed to investigate the detailed reaction mechanism of the Pummerer coupling between sulfoxides and turbo-organomagnesium amides. Among the various aggregates studied, unprecedented heterometallic open cubane structures are demonstrated to yield favorable barriers through a concerted anion-anion coupling/ S?O cleavage step. Beyond a structural curiosity, these results introduce open cubane organometallics as key reactive intermediates in turbo-organomagnesium amide mixtures.
Nucleophilic ortho-propargylation of aryl sulfoxides: An interrupted pummerer/allenyl thio-Claisen rearrangement sequence
Eberhart, Andrew J.,Procter, David J.
supporting information, p. 4008 - 4011 (2013/05/21)
A new direction: The nucleophilic ortho-propargylation of aryl sulfoxides exploits intermolecular delivery of the nucleophile to sulfur followed by an intramolecular relay to carbon (see scheme). The simple, metal-free procedure is general, regiospecific with regard to the propargyl nucleophile, and completely selective for products of ortho-propargylation over allenylation.
Evidence for the involvement of a sulfurane intermediate in the oxidation of simple sulfides by methyl(trifluoromethyl)dioxirane
Asensio, Gregorio,Mello, Rossella,Gonzalez-Nunez, Maria Elena
, p. 2299 - 2302 (2007/10/03)
Methyl(trifluoromethyl)dioxirane reacts with sulfides to give preferentially sulfones, even in the presence of competing sulfoxides. The sulfoxide yield increases at the expense of the sulfone when 2,2,2-trifluoroethanol is used as co-solvent. The reactio