E/Z Photoisomerization of Olefins as an Emergent Strategy for the Control of Stereodivergence in Catalysis

J Corpas, P Mauleón, R Gomez Arrayas… - Advanced Synthesis …, 2022 - Wiley Online Library
The stereoselective photoisomerization of olefins via Energy Transfer (EnT) sensitization
bears significant potential in the context of rational design of catalytic stereodivergent …

Direct Observation of Triplet States in the Isomerization of Alkenylboronates by Energy Transfer Catalysis

TJB Zähringer, M Wienhold, R Gilmour… - Journal of the …, 2023 - ACS Publications
Alkenylboronates are versatile building blocks for stereocontrolled synthesis owing to the
traceless nature of the boron group that can be leveraged to achieve highly selective …

Organophotocatalytic N–O Bond Cleavage of Weinreb Amides: Mechanism-Guided Evolution of a PET to ConPET Platform

J Soika, C McLaughlin, T Neveselý, CG Daniliuc… - ACS …, 2022 - ACS Publications
A mild, organophotocatalytic N–O bond cleavage of Weinreb amides is disclosed, thereby
expanding the chemistry of this venerable motif beyond acylation. This redox neutral …

Leveraging the n→ π* interaction in alkene isomerization by selective energy transfer catalysis

T Neveselý, JJ Molloy, C McLaughlin… - Angewandte Chemie …, 2022 - Wiley Online Library
Examples of geometric alkene isomerization in nature are often limited to the net exergonic
direction (ΔG°< 0), with the antipodal net endergonic processes (ΔG°> 0) comparatively …

Photocatalyzed triplet sensitization of oximes using visible light provides a route to nonclassical Beckmann rearrangement products

X Zhang, T Rovis - Journal of the American Chemical Society, 2021 - ACS Publications
Oximes are valuable synthetic intermediates for the preparation of a variety of functional
groups. To date, the stereoselective synthesis of oximes remains a major challenge, as most …

Regio‐and Stereo‐Selective Isomerization of Borylated 1, 3‐Dienes Enabled by Selective Energy Transfer Catalysis

B Kweon, L Blank, J Soika, A Messara… - Angewandte Chemie …, 2024 - Wiley Online Library
Configurationally‐defined dienes are pervasive across the bioactive natural product
spectrum, where they typically manifest themselves as sorbic acid‐based fragments. These …

Merging Grubbs second-generation catalyst with photocatalysis enables Z-selective metathesis of olefins: scope, limitations, and mechanism

SE Chérif, A Ghosh, S Chelli, IM Dixon, J Kraiem… - Chemical …, 2022 - pubs.rsc.org
Olefin cross-metathesis is a cornerstone reaction in organic synthesis where
stereoselectivity is typically governed by the structure of the catalyst. In this work, we show …

Dimerizing cascades of enallenamides reveal the visible-light-promoted activation of cumulated C–C double bonds

A Serafino, M Chiminelli, D Balestri, L Marchiò… - Chemical …, 2022 - pubs.rsc.org
The visible-light-promoted activation of conjugated C–C double bonds is well developed,
while that of cumulated systems is underexplored. We present the feasibility of this …

Energy-Transfer-Mediated Photocatalysis by a Bioinspired Organic Perylenephotosensitizer HiBRCP

Y Zhang, M Xia, M Li, Q Ping, Z Yuan… - The Journal of …, 2021 - ACS Publications
Energy transfer plays a special role in photocatalysis by utilizing the potential energy of the
excited state through indirect excitation, in which a photosensitizer determines the …

Stereochemistry in All Its Shapes and Forms: The 56th Bürgenstock Conference.

A Gómez-Suárez, CN Neumann - … Chemie (International ed. in …, 2023 - europepmc.org
Acknowledging the crucial role of stereochemistry in fields as diverse as total synthesis,
synthetic methodology, spectroscopy, and the study of the origin of life, the 56 th SCS …