Novel Route to Ynamides: Stable Ligands Equivalent to Unstable Oxazol-4-Ylidenes.
Mendoza Espinosa, Daniel
2012
Ung, G.; Mendoza-Espinosa, D.; Bertrand G. Novel Route to Ynamides: Stable Ligands Equivalent to Unstable Oxazol-4-Ylidenes. Chem. Commun. 2012, 48, 7088-7090.
Abstract
Deprotonation of an oxazolium salt induces a ring opening process leading to the corresponding ynamide. Although the expected mesoionic carbene is not obtained, the acyclic ynamide readily reacts with various transition metals yielding robust mesoionic carbene complexes.
Artículos relacionados
Trapping enols of esters and lactones with diazomethane
Transesterifications mediated by t-BuNH2
Synthesis of Bromoindole Alkaloids from Laurencia brongniartii
13C NMR and crystallographic evidence of push-pull effects in furoindolic ?-enamino esters
Synthesis of 6-bromo-2-arylindoles using 2-iodobenzoic acid as precursor
One-potsynthesis of conformationallyrestrictedspirooxindoles
The absoluteconfiguration of cuauhtemone and related compounds