Energy transfer photocatalysis: exciting modes of reactivity

S Dutta, JE Erchinger, F Strieth-Kalthoff… - Chemical Society …, 2024 - pubs.rsc.org
Excited (triplet) states offer a myriad of attractive synthetic pathways, including
cycloadditions, selective homolytic bond cleavages and strain-release chemistry …

Ratcheting synthesis

S Borsley, JM Gallagher, DA Leigh… - Nature Reviews …, 2024 - nature.com
Synthetic chemistry has traditionally relied on reactions between reactants of high chemical
potential and transformations that proceed energetically downhill to either a global or local …

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 …

Elaborating E/Z‐Geometry of Alkenes via Cage‐Confined Arylation Catalysis of Terminal Olefins

Y Wang, J Chen, J Yang, Z Jiao… - Angewandte Chemie …, 2023 - Wiley Online Library
A visible light photosensitizing metal‐organic cage is applied as an artificial supramolecular
reactor to control the reaction of aryl radicals with terminal olefins under green light/solvent …

Regioselective Access to Vicinal Diamines by Metal‐free Photosensitized Amidylimination of Alkenes with Oxime Esters

Y Zheng, ZJ Wang, ZP Ye, K Tang… - Angewandte Chemie …, 2022 - Wiley Online Library
A metal‐free photosensitized protocol for regioselective diamination of alkene feedstocks
over a single step was developed based on the rationally designed bifunctional diamination …

Multifaceted view on the mechanism of a photochemical deracemization reaction

RJ Kutta, J Großkopf, N van Staalduinen… - Journal of the …, 2023 - ACS Publications
Upon irradiation in the presence of a chiral benzophenone catalyst (5 mol%), a racemic
mixture of a given chiral imidazolidine-2, 4-dione (hydantoin) can be converted almost …

Skeletal Ring Contractions via I(I)/I(III) Catalysis: Stereoselective Synthesis of cis-α,α-Difluorocyclopropanes

K Livingstone, K Siebold, S Meyer, V Martín-Heras… - ACS …, 2022 - ACS Publications
The clinical success of α, α-difluorocyclopropanes, combined with limitations in the existing
synthesis portfolio, inspired the development of an operationally simple, organocatalysis …

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 …

Photoexcited Chiral Copper Complex-Mediated Alkene EZ Isomerization Enables Kinetic Resolution

H Zhang, C Huang, XA Yuan, S Yu - Journal of the American …, 2022 - ACS Publications
While asymmetric synthesis has been established as a powerful synthetic tool for the
construction of versatile enantioenriched molecules in the most efficient and practical …

Photoinduced dynamic radical processes for isomerizations, deracemizations, and dynamic kinetic resolutions

JS DeHovitz, TK Hyster - ACS Catalysis, 2022 - ACS Publications
Isomerizations are chemical processes where a compound is transformed into another
structure while retaining the same chemical formula. When dynamic, these reactions are …