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Yexenia Nieves-Quinones
Researcher at University of Pennsylvania
Publications - 6
Citations - 213
Yexenia Nieves-Quinones is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Integrase & Catalysis. The author has an hindex of 5, co-authored 5 publications receiving 149 citations. Previous affiliations of Yexenia Nieves-Quinones include Texas A&M University.
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Journal ArticleDOI
Isotope Effects, Dynamic Matching, and Solvent Dynamics in a Wittig Reaction. Betaines as Bypassed Intermediates
TL;DR: The mechanism of the Wittig reaction of anisaldehyde with a stabilized ylide was studied by a combination of 13C kinetic isotope effects, conventional calculations, and molecular dynamics calculations in a cluster of 53 THF molecules.
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Dynamics and the Regiochemistry of Nitration of Toluene.
TL;DR: The regiochemistry of the nitration of toluene by NO2+BF4- in dichloromethane is accurately predicted from trajectories in explicit solvent because the selectivity is decided late in long trajectories because their completion requires solvent and counterion reorganization.
Journal ArticleDOI
Chromium-Salen Catalyzed Cross-Coupling of Phenols: Mechanism and Origin of the Selectivity.
Yexenia Nieves-Quinones,Thomas J. Paniak,Young Eun Lee,Sun Min Kim,Sergei Tcyrulnikov,Marisa C. Kozlowski +5 more
TL;DR: A highly chemoselective phenol cross-coupling reaction catalyzed by a Cr-salen catalyst was developed and the selectivity of the reaction was found to be determined by the cross-Coupling carbon-carbon bond forming reaction, rather than any precoordination species.
Journal ArticleDOI
Reactions of 2‐Aryl‐1,3‐Dithianes and [1.1.1]Propellane
Nisalak Trongsiriwat,Youge Pu,Youge Pu,Yexenia Nieves-Quinones,Russell A. Shelp,Marisa C. Kozlowski,Patrick J. Walsh +6 more
TL;DR: This work discloses a general method for the synthesis of BCP-containing dithianes which, upon deprotection, provide access to BCP analogues of medicinally abundant diarylketones.
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Transition-metal-free formal cross-coupling of aryl methyl sulfoxides and alcohols via nucleophilic activation of C-S bond.
Guolin Li,Yexenia Nieves-Quinones,Hui Zhang,qingjin liang,Shuaisong Su,Qingchao Liu,Marisa C. Kozlowski,Tiezheng Jia +7 more
TL;DR: This study establishes the feasibility of nucleophilic addition to an appended sulfoxide as a means to form a bond to aryl(heteroaryl) systems and this modality is expected to find use with many other electrophiles and nucleophiles leading to new cross-coupling processes.