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Susan M. Stevenson on Muck Rack

Susan M. Stevenson

As seen in: Journal of Chemical & Engineering Data, Chemistry World
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Articles by Susan M. Stevenson

Chromium Photocatalysis: Accessing Structural Complements to Diels-Alder Adducts with Electron-Deficient Dienophiles

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By Susan M. Stevenson, Robert F. Higgins, Matthew P Shores, Eric Matthew Ferreira
| Chemistry World Verified
A chromium-catalyzed, visible light-activated net [4+2] cycloaddition between dienes and electron-deficient alkenes is described. Gathered evidence, via control experiments, isolated intermediates, and measured redox potentials, points to several converging reaction pathways that afford the cyclohexene adducts, including a photochemical [2+2] cycloaddition/vinylcyclobutane rearrangement cascade and a substrate excitation/oxidation sequence to a radical cation intermediate.
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Chromium photocatalysis: accessing structural complements to Diels-Alder adducts with electron-deficient dienophiles

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By Susan M. Stevenson, Robert F. Higgins, Matthew P Shores
| Chemistry World Verified
A chromium-catalyzed, visible light-activated net [4 + 2] cycloaddition between dienes and electron-deficient alkenes is described. Gathered evidence, via control experiments, isolated intermediates, and measured redox potentials, points to several converging reaction pathways that afford the cyclohexene adducts, including a photochemical [2 + 2] cycloaddition/vinylcyclobutane rearrangement cascade and a substrate excitation/oxidation sequence to a radical cation intermediate.
Open in Who Shared Issue with article?

Uncovering the Roles of Oxygen in Cr(III) Photoredox Catalysis

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By Robert F. Higgins, Steven M. Fatur, Samuel G. Shepard, Susan M. Stevenson
| Journal of Chemical & Engineering Data Verified
A combined experimental and theoretical investigation aims to elucidate the necessary roles of oxygen in photoredox catalysis of radical cation based Diels–Alder cycloadditions mediated by the first-row transition metal complex [Cr(Ph phen) ]3+, where Ph phen = bathophenanthroline. We employ a diverse array of techniques, including catalysis screening, electrochemistry, time-resolved spectroscopy, and computational analyses of reaction thermodynamics.
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