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Mostrando ítems 1-6 de 6
Artículo
N-Heterotricyclic Cationic Carbene Ligands. Synthesis, Reactivity and Coordination Chemistry
(Royal Society of Chemistry, 2018)
The direct dialkylation of triazolo[4,3-b]isoquinolin-3-ylidene structures readily affords dicationic N-heterotricyclic azolium salts. These are suitable starting materials for the synthesis of transition metal complexes ...
Artículo
Chirality and catalysis with aromatic N-fused heterobicyclic carbenes
(Royal Society of Chemistry, 2016)
The benzoannulation of the most common families of aromatic NHCs, imidazol-2-ylidenes and 1,2,4-triazol-3-ylidenes, results in heterobicyclic imidazo[1,5-a]pyridin-3-ylidenes (ImPy's) and [1,2,4]triazolo[4,3-a]pyridin-3-ylidenes ...
Artículo
AuI-Catalyzed Haloalkynylation of Alkenes
(Wiley-Blackwell, 2020)
The formal insertion of alkenes into aromatic chloro- and bromoalkynes takes place under cationic gold catalysis. This haloalkynylation reaction can be performed with cyclic, gem-disubstituted and monosubstituted alkenes, ...
Artículo
Axially Chiral Triazoloisoquinolin-3-ylidene Ligands in Gold(I)-catalyzed Asymmetric Intermolecular (4 + 2) Cycloadditions of Allenamides and Dienes
(American Chemical Society, 2012)
The first highly enantioselective intermolecular (4 + 2) cycloaddition between allenes and dienes is reported. The reaction provides good yields of optically active cyclohexenes featuring diverse substitution patterns and ...
Artículo
Studies on the Synthesis of 2-Alkyl-5-aryl-1,3,4-oxadiazolines from N-Acylhydrazones
(2012)
Reaction of N-acylhydrazones with benzyloxyacetyl chloride in the presence of i-Pr 2EtN affords new 1,3,4-oxadiazolines in excellent yields (72-95%), under mild reaction conditions and in short reaction times. The structures ...
Artículo
AuI-Catalyzed Hydroalkynylation of Haloalkynes
(American Chemical Society, 2020)
The AuI-catalyzed reaction between terminal alkynes and aromatic haloalkynes proceeds through divergent pathways depending on the nature of the catalyst counteranion. Thus, cationic complexes containing strongly basic NHC ...