Producción Científica Profesorado

Synthesis and Reactivity of (NHC)AuI?Mercaptopyridine Complexes.

Mendoza Espinosa, Daniel


R. Evelyn Cordero-Rivera, David Rendón-Nava, Carlos Ángel-Jijón, Oscar R. Suárez-Castillo, Daniel Mendoza-Espinosa. Synthesis and Reactivity of (NHC)AuI?Mercaptopyridine Complexes. Organometallics. 39 (2020) 10, 1887?1895. DOI:10.1021/acs.organomet.0c00118


Reaction of (NHC)Au?X (X = halide) complexes with 2- or 4-mercaptopyridine under basic conditions allows for the preparation of a series of (NHC)AuI?mercaptopyridine complexes 1?4 in high yields. All complexes have been fully characterized by means of 1H and 13C NMR spectroscopy, melting point, and elemental analysis. Single crystals of complexes 1?3 were obtained, and the solid-state structures display a linear Au(I) center with coordination to the NHC ligand and the sulfur atom of the mercaptopyridine moiety. Interestingly, weak ?-anagostic C?HAu interactions are found in complexes 1?3 regardless of the relative N or S position in the mercaptopyridine. Taking advantage of the free pyridine nitrogen, reaction of complexes 1 and 2 with palladium allyl chloride dimer permits the isolation of heteronuclear Au/Pd complexes 5 and 8 featuring a bridging ambidentate mercaptopyridine ligand. Further reactivity of complexes 1?3 toward B(C6F5)3 produces complexes 6, 7, and 9, which display frustrated Lewis pair reactivity with the activation of a H?F bond.

Producto de Investigación

Artículos relacionados

Transesterifications mediated by t-BuNH2

13C NMR and crystallographic evidence of push-pull effects in furoindolic ?-enamino esters

Preparation of 3-hydroxyoxindoles with dimethyldioxirane and their use for the synthesis of natural ...

Cascade [1,3]-Sigmatropic Rearrangements of Ketene O,O-Acetals: Kinetic and DFT Level Mechanistic St...

Reactivity of TpMe2Ir(C2H4)(DMAD) with carboxylic acids. A DFT study on geometrical isomers and stru...

Cleavage of alkoxycarbonyl protecting groups from carbamates by t-BuNH2

Trapping enols of esters and lactones with diazomethane

Firsttotalsyntheses of dihydroflustramine C and flustramine E, alkaloids from the marine bryozoan Fl...

Synthesis of ?4:?2-Exocyclic-Diene Iridium(I) Complexes Derived from 1,3-Oxazolidin-2-ones and Their...

Synthesis of Indolylindolines Mediated by tert-BuNH2