Halogen Bonding of N ‐Halosuccinimides with Amines and Effects of Brønsted Acids in Quinuclidine‐Catalyzed Halocyclizations
Sign Up to like & getrecommendations! Published in 2021 at "Helvetica Chimica Acta"
DOI: 10.1002/hlca.202100080
Abstract: An arguable expectation in halogen chemistry is that an amine will react oxidatively with an Nhalosuccinimide (NXS) to form an N-halogenated species bearing a covalent N read more here.
Keywords: halosuccinimides amines; effects nsted; amines effects; halogen bonding ... See more keywords
Brønsted Acids Enable Three Molecular Rearrangements of One 3-Alkylidene-2H-1,2-oxazine Molecule into Distinct Heterocyles.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.7b03985
Abstract: This work describes three different strategies to structurally rearrange one 3-alkylidene-2H-1,2-oxazine molecule into three distinct heterocycles using HOTf, propiolic acid, and silica gel, respectively. The mechanisms of these rearrangement reactions involve three independent routes, including… read more here.
Keywords: one alkylidene; nsted acids; alkylidene oxazine; oxazine molecule ... See more keywords
Chiral Brønsted Acids Catalyze Asymmetric Additions to Substrates that Are Already Protonated: Highly Enantioselective Disulfonimide-Catalyzed Hantzsch Ester Reductions of NH–Imine Hydrochloride Salts
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DOI: 10.1055/s-0040-1706413
Abstract: While imines are frequently used substrates in asymmetric Bronsted acid catalysis, their corresponding salts are generally considered unsuitable reaction partners. Such processes are challenging because they require the successful competition of a catalytic amount of… read more here.
Keywords: acids catalyze; chiral nsted; imine hydrochloride; nsted acids ... See more keywords
The Role of Non-Covalent Interactions in the Reactions between Palladium Hydrido Complex with Amidoarylphosphine Pincer Ligand and Brønsted Acids
Sign Up to like & getrecommendations! Published in 2023 at "Inorganics"
DOI: 10.3390/inorganics11050212
Abstract: The interaction between (PNP)PdH (1); PNP = bis(2-diisopropylphosphino-4-methylphenyl)amide and different acids (CF3SO3H, HBF4∙Et2O, fluorinated alcohols and formic acid) was studied in benzene or toluene as well as in neat alcohols by IR and NMR spectroscopies.… read more here.
Keywords: nsted acids; role non; pnp; pincer ligand ... See more keywords