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Superelectrophiles and Their Chemistry
TLDR
This paper presents a systematic study of Superelectrophiles and its applications to neuroscience, aiming at determining the role of language and culture in the development of sexuality and gender identity.
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Superelectrophiles and the effects of trifluoromethyl substituents.
TLDR
The strong electron-withdrawing properties of the trifluoromethyl group are found to enhance the electrophilic character at cationic sites in superelectrophiles, which leads to greater positive-charge delocalization in the supe relectrophile.
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Chemistry of dicationic electrophiles: superacid-catalyzed reactions of amino acetals.
TLDR
It is proposed that amino acetals give dicationic electrophiles, and this proposal is supported by the direct observation of a dication by low-temperature (13)C NMR.
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Superacid‐Promoted Reactions of Pyrazolecarboxaldehydes and the Role of Dicationic Electrophiles.
Pyrazolecarboxaldehydes react in the Bronsted superacid triflic acid (CF3SO3H, TfOH) to generate electrophilic intermediates capable of reacting with benzene in condensation reactions. Appropriately…
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Triflic acid promoted synthesis of polycyclic aromatic compounds
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Contemporary carbocation chemistry: applications in organic synthesis.
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Aza-Nazarov reaction and the role of superelectrophiles.
The superacid-catalyzed reactions of N-acyliminium ion salts have been studied. The new conversions are remarkably similar to the Nazarov reaction and dicationic superelectrophilic species are…
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Preparation of 3,3-Diaryloxindoles by Superacid-Induced Condensations of Isatins and Aromatics with a Combinatorial Approach
3,3-Diaryloxidoles are prepared in high yields (62−99%) by reaction of isatin or substituted isatins with aromatics in triflic acid. The reaction shows a significant dependence on acid strength which…
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Synthesis of Aryl-Substituted Piperidines by Superacid Activation of Piperidones.
TLDR
The conversion of 3g to 11 is sensitive to both acid quantity and acid strength; a mechanism is proposed for the conversion that invokes dicationic intermediates.
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Superacid-promoted reactions of alpha-ketoamides and related systems.
TLDR
Dicationic, superelectrophilic intermediates are proposed as intermediates leading to the products from alpha-hydroxy and alpha-ketoamides, and in some cases, electrocyclization can lead to substituted fluorene products.
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