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 …

Chiral photocatalyst structures in asymmetric photochemical synthesis

MJ Genzink, JB Kidd, WB Swords, TP Yoon - Chemical reviews, 2021 - ACS Publications
Asymmetric catalysis is a major theme of research in contemporary synthetic organic
chemistry. The discovery of general strategies for highly enantioselective photochemical …

Enantioselective photochemical reactions enabled by triplet energy transfer

J Großkopf, T Kratz, T Rigotti, T Bach - Chemical Reviews, 2021 - ACS Publications
For molecules with a singlet ground state, the population of triplet states is mainly possible
(a) by direct excitation and subsequent intersystem crossing or (b) by energy transfer from …

Multiplicative enhancement of stereoenrichment by a single catalyst for deracemization of alcohols

L Wen, J Ding, L Duan, S Wang, Q An, H Wang, Z Zuo - Science, 2023 - science.org
Stereochemical enrichment of a racemic mixture by deracemization must overcome
unfavorable entropic effects as well as the principle of microscopic reversibility; recently …

Thioxanthone: a powerful photocatalyst for organic reactions

NF Nikitas, PL Gkizis, CG Kokotos - Organic & Biomolecular Chemistry, 2021 - pubs.rsc.org
Photoorganocatalysis has been recognised by the organic chemistry community as an
important part of photochemistry and catalysis. In general, aromatic ketones constitute key …

Light-empowered contra-thermodynamic stereochemical editing

PZ Wang, WJ Xiao, JR Chen - Nature Reviews Chemistry, 2023 - nature.com
Creating, conserving and modifying the stereochemistry of organic compounds has been the
subject of significant research efforts in synthetic chemistry. Most synthetic routes are …

Asymmetric synthesis of S (IV) and S (VI) stereogenic centers

X Zhang, F Wang, CH Tan - JACS Au, 2023 - ACS Publications
Sulfur can form diverse S (IV) and S (VI) stereogenic centers, of which some have gained
significant attention recently due to their increasing use as pharmacophores in drug …

Photochemical deracemization of chiral alkenes via triplet energy transfer

T Kratz, P Steinbach, S Breitenlechner… - Journal of the …, 2022 - ACS Publications
A visible-light-mediated, enantioselective approach to axially chiral alkenes is described.
Starting from a racemic mixture, a major alkene enantiomer is formed due to selective triplet …

Photochemical deracemization of primary allene amides by triplet energy transfer: a combined synthetic and theoretical study

M Plaza, J Großkopf, S Breitenlechner… - Journal of the …, 2021 - ACS Publications
The photochemical deracemization of 2, 4-disubstituted 2, 3-butadienamides (allene
amides) was investigated both experimentally and theoretically. The reaction was catalyzed …

Catalytic deracemization reactions

M Huang, T Pan, X Jiang, S Luo - Journal of the American …, 2023 - ACS Publications
Deracemization, which converts a racemate into its single enantiomer without separation of
the intermediate, has gained renewed interest in asymmetric synthesis with its inherent …