Hayden Christopher Foy

Hayden Christopher Foy
Brock University · Department of Chemistry

Honors Specialization in Chemistry Bachelor of Science

About

14
Publications
792
Reads
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86
Citations
Citations since 2016
14 Research Items
86 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
Introduction

Publications

Publications (14)
Article
Full-text available
Glycomimetics are structural mimics of naturally occurring carbohydrates and represent important therapeutic leads in several disease treatments. However, the structural and stereochemical complexity inherent to glycomimetics often challenges medicinal chemistry efforts and is incompatible with diversity-oriented synthesis approaches. Here, we desc...
Article
Herein we report that coordinative hemilability allows the MIDA (N-methyliminodiacetic acid) nitrogen to behave as a nucleophile and intramolecularly intercept palladium π-allyl intermediates. A mechanistic investigation indicates that this rearrangement proceeds through an SN2-like displacement at tetrasubstituted boron to furnish novel DABN boron...
Article
The front cover picture, provided by Dudding, Metallinos and co‐workers, illustrates that N‐propargyl derivatives of L‐proline hydantoin participate in reactions that can be driven in several directions (even in reverse!). For example, opposite enantiomers of alkylated propargyl products can be prepared from epimeric starting materials that are gea...
Preprint
Herein we report that coordinative hemilability allows the MIDA nitrogen to behave as a nucleophile to intramolecularly intercept palladium π-allyl intermediates. A mechanistic investigation indicates that this rearrangement proceeds through an SN2-like displacement at tetrasubstituted boron to furnish novel DABN (2,8-dioxa-5-aza-1-borabicyclo[3.3....
Preprint
div> We report that coordinative hemilability allows the MIDA amine to behave as a nucleophile to intercept π-allyl intermediates. A mechanistic investigation indicates that this rearrangement proceeds through an SN2-like displacement at tetrasubstituted boron to furnish novel DABN (2,8- dioxa-5-aza-1-borabicyclo[3.3.1]nonane-3,7-dione) boronates...
Article
An N‐propargyl pyrroloimidazolone with syn stereochemistry derived from L‐proline serves as a starting material for the diastereoselective synthesis (>95:5 dr) of propargyl alkynes or allenamides by direct quench of its lithiated intermediate with alkylating agents or aldehydes/ketones, respectively. Use of the epimeric anti pyrroloimidazolone star...
Article
Charge-enhanced catalysis has emerged as a powerful alternative to the mainstream use of neutral catalysis. With this in mind, we report a catalytic Friedel‒Crafts alkylation method catalyzed by a charged thiourea incorporating a cationic cyclopropenium moiety. Mechanistic studies, including density functional theory computational calculations, var...
Article
We report an unprecedented photochemical oxygen insertion reaction into an aromatic quinone methide. Insertion happens specifically within a C(aryl)-C(alkyl) bond, whereas the quinone methide moiety remains intact itself. Detailed mechanistic studies, supported by DFT calculations, support a pathway in which the p-QM plays a pivotal activating role...
Article
This paper unveils the reactivity patterns, as well as ligand and additive effect on alkali metal base catalyzed transfer hydrogenation of ketones. Crucially to this reactivity is the presence of a Lewis acid (alkali cation), as opposed to a simple base effect. With aryl ketones, the observed reactivity order is Na+ > Li+ > K+, whereas for aliphati...
Article
Conventional amide synthesis is a mainstay in discipline-spanning applications, and it is a reaction type that historically developed as a singular paradigm when considering the carbon-nitrogen bond-forming step. Umpolung amide synthesis (UmAS) exploits the unique properties of an α-halo nitroalkane in its reaction with an amine to produce an amide...
Article
Enolate additions to chiral N-sulfonyloxaziridines providing enantiomerically enriched α-hydroxy carbonyl compounds is a reaction of importance, yet a clear understanding of the factors governing stereoinduction in these transformations remains ambiguous. This is despite, previous computational studies, one by Bach et al. employing truncated model...
Article
As part of a program aimed at metal-catalyzed oxidative transformations of molecules with carbon–metalloid bonds, the synthesis of α-borylated ketones is reported via regioselective TBHP-mediated Wacker-type oxidation of N-methyliminodiacetic acid (MIDA)-protected alkenylboronates. The observed regioselectivity correlates with the hemilabile nature...
Article
Metallic nanostructures that exhibit tailored optical resonances spanning from the near to mid-infrared spectral range are of particular interest for spectroscopic and optical measurements in these spectral domains that can benefit from localized surface-enhancement effects. Plasmon resonances shifted in the near or mid-infrared range could be used...

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