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Mostrando ítems 11-16 de 16
Artículo
Strongly Emissive and Photostable Four-Coordinate Organoboron N,C Chelates and Their Use in Fluorescence Microscopy
(Wiley-Blackwell, 2015)
Six strongly fluorescent four-coordinate organoboron N,C chelates containing an aryl isoquinoline skeleton were prepared. Remarkably, the fluorescence quantum yields reach values of up to 0.74 in oxygen-free toluene. The ...
Artículo
Asymmetric synthesis of dibenzo[b,d]azepines by Cu-catalyzed reductive or borylative cyclization
(Royal Society of Chemistry, 2021)
A copper-catalyzed asymmetric intramolecular reductive cyclization for the synthesis of dibenzo[b,d]azepines is described. Use of 2′-vinyl-biaryl-2-imines as substrates and in situ formed [CuI/(Ph-BPE)] as the catalyst ...
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 ...
Artículo
Dynamic Kinetic Resolution of Indole-Based Sulfenylated Heterobiaryls by Rhodium-Catalyzed Atroposelective Reductive Aldol Reaction
(Amer chemical SOC, 2023-08-30)
A highly enantio- and diastereoselective dynamic kinetic resolution (DKR) of configurationally labile 3-aryl indole-2-carbaldehydes is described. The DKR proceeds via a Rh-catalyzed intermolecular asymmetric reductive aldol ...
Artículo
Dynamic kinetic resolution of 2-(Quinolin-8-yl)benzaldehydes: atroposelective iridium-catalyzed transfer hydrogenative allylation
(Wiley-V C H Verlag GMBH, 2023-06-30)
An atroposelective Ir-catalyzed dynamic kinetic resolution (DKR) of 2-(quinolin-8- yl)benzaldehydes/1-naphthaldehydes by transfer hydrogenative coupling of allyl acetate is disclosed. The allylation reaction takes place ...
Artículo
Silver-free gold-catalyzed heterocyclizations through intermolecular H-bonding activation.
(AMER Chemical Soc, 2023-01-27)
Modulable monosulfonyl squaramides have been shown to exert activation of gold(I) chloride complexes through H-bonding in an intermolecular way. Combinations of (PPh3)AuCl or IPrAuCl complexes and an optimal sulfonyl ...