Late-stage C–H functionalization of azines

CM Josephitis, HMH Nguyen, A McNally - Chemical reviews, 2023 - ACS Publications
Azines, such as pyridines, quinolines, pyrimidines, and pyridazines, are widespread
components of pharmaceuticals. Their occurrence derives from a suite of physiochemical …

[HTML][HTML] Recent advances in visible light-activated radical coupling reactions triggered by (i) ruthenium,(ii) iridium and (iii) organic photoredox agents

JD Bell, JA Murphy - Chemical Society Reviews, 2021 - pubs.rsc.org
Photoredox chemistry with organic or transition metal agents has been reviewed in earlier
years, but such is the pace of progress that we will overlap very little with earlier …

Recent advances in minisci‐type reactions

RSJ Proctor, RJ Phipps - Angewandte Chemie International …, 2019 - Wiley Online Library
Reactions that involve the addition of carbon‐centered radicals to basic heteroarenes,
followed by formal hydrogen atom loss, have become widely known as Minisci‐type …

Electrophotocatalytic decarboxylative C− H functionalization of heteroarenes

XL Lai, XM Shu, J Song, HC Xu - Angewandte Chemie, 2020 - Wiley Online Library
Decarboxylative C− H functionalization reactions are highly attractive methods for forging
carbon–carbon bonds considering their inherent step‐and atom‐economical features and …

Photoinduced, metal-and photosensitizer-free decarboxylative C–H (amino) alkylation of heteroarenes in a sustainable solvent

J Xu, C Liang, J Shen, Q Chen, W Li, P Zhang - Green Chemistry, 2023 - pubs.rsc.org
Herein, a metal-and photosensitizer-free protocol has been developed for decarboxylative C–
H (amino) alkylation of heteroarenes using carboxylic acids as the (amino) alkylating …

Utilization of C(sp3)‐Carboxylic Acids and Their Redox‐Active Esters in Decarboxylative Carbon−Carbon Bond Formation

S Karmakar, A Silamkoti, NA Meanwell… - Advanced Synthesis …, 2021 - Wiley Online Library
Over the last several years, radical‐mediated decarboxylative cross‐coupling reactions
employing alkyl carboxylic acids have emerged as a powerful tool for the regiospecific …

Chemical‐reductant‐free electrochemical deuteration reaction using deuterium oxide

X Liu, R Liu, J Qiu, X Cheng, G Li - … Chemie International Edition, 2020 - Wiley Online Library
We report a method for the electrochemical deuteration of α, β‐unsaturated carbonyl
compounds under catalyst‐and external‐reductant‐free conditions, with deuteration rates as …

Transition-metal-free decarboxylative C3-difluoroarylmethylation of quinoxalin-2 (1 H)-ones with α, α-difluoroarylacetic acids

G Hong, J Yuan, J Fu, G Pan, Z Wang, L Yang… - Organic Chemistry …, 2019 - pubs.rsc.org
A facile transition-metal-free decarboxylative radical coupling reaction of α, α-
difluoroarylacetic acids with quinoxalin-2 (1H)-ones has been developed. This methodology …

Direct decarboxylative Giese amidations: photocatalytic vs. metal-and light-free

DM Kitcatt, KA Scott, E Rongione, S Nicolle… - Chemical Science, 2023 - pubs.rsc.org
A direct intermolecular decarboxylative Giese amidation reaction from bench stable, non-
toxic and environmentally benign oxamic acids has been developed, which allows for easy …

[HTML][HTML] Diversification of pharmaceutical molecules via late-stage C (sp2)–H functionalization

W Shang, H Sun, W Chen, J Liu - Green Synthesis and Catalysis, 2023 - Elsevier
C–H late-stage functionalization has gradually become a powerful approach for the rapid
optimization of lead compounds' bioactivity. Significant advances in this field have been …