The emergence of quinone methides in asymmetric organocatalysis

L Caruana, M Fochi, L Bernardi - Molecules, 2015 - mdpi.com
Quinone methides (QMs) are highly reactive compounds that have been defined as “elusive”
intermediates, or even as a “synthetic enigma” in organic chemistry. Indeed, there were just …

All-carbon quaternary centers in natural products and medicinal chemistry: recent advances

T Ling, F Rivas - Tetrahedron, 2016 - Elsevier
A remaining challenge in the synthetic chemistry field is formation of all-carbon quaternary
centers, a feature found in many natural products, particularly in spirocycle systems. 1 …

The Cation–π Interaction in Small‐Molecule Catalysis

CR Kennedy, S Lin… - Angewandte Chemie …, 2016 - Wiley Online Library
Catalysis by small molecules (≤ 1000 Da, 10− 9 m) that are capable of binding and
activating substrates through attractive, noncovalent interactions has emerged as an …

Cation− π interactions in organic synthesis

S Yamada - Chemical reviews, 2018 - ACS Publications
The cation− π interaction is an attractive noncovalent interaction between a cation and a π
system. Due to the stronger interaction energy than those of the other π interactions, such as …

Internal Oxidant‐Triggered Aerobic Oxygenation and Cyclization of Indoles under Copper Catalysis

H Huang, J Cai, X Ji, F Xiao, Y Chen… - Angewandte Chemie …, 2016 - Wiley Online Library
A concise synthesis of pyrazolo [1, 5‐a] indole derivatives by copper‐catalyzed aerobic
oxygenation and cyclization of indoles with oxime acetates is described. This protocol …

Green oxidation of indoles using halide catalysis

J Xu, L Liang, H Zheng, YR Chi, R Tong - Nature Communications, 2019 - nature.com
Oxidation of indoles is a fundamental organic transformation to deliver a variety of
synthetically and pharmaceutically valuable nitrogen-containing compounds. Prior methods …

Enantioselective dearomatization reactions of heteroarenes by anion-binding organocatalysis

M Aleksiev, OG Mancheño - Chemical Communications, 2023 - pubs.rsc.org
Catalytic asymmetric dearomatization of heteroaromatic compounds has received
considerable attention in the last few years, since it allows for a fast expansion of the …

Chemical composition of DNA-encoded libraries, past present and future

P Dickson, T Kodadek - Organic & biomolecular chemistry, 2019 - pubs.rsc.org
Chemical composition of DNA-encoded libraries, past present and future - Organic &
Biomolecular Chemistry (RSC Publishing) DOI:10.1039/C9OB00581A Royal Society of …

Chiral Phosphoric Acid-Catalyzed Enantioselective Dearomative Electrophilic Hydrazination: Access to Chiral Aza-Quaternary Carbon Indolenines

XY Qiu, ZH Li, J Zhou, PF Lian, LK Dong, TM Ding… - ACS …, 2022 - ACS Publications
Direct enantioselective synthesis of chiral aza-quaternary carbon indolenines through the
dearomative electrophilic hydrazination of 2, 3-disubstituted indoles has been achieved …

Chiral thioureas—preparation and significance in asymmetric synthesis and medicinal chemistry

F Steppeler, D Iwan, E Wojaczyńska, J Wojaczyński - Molecules, 2020 - mdpi.com
For almost 20 years, thioureas have been experiencing a renaissance of interest with the
emerged development of asymmetric organocatalysts. Due to their relatively high acidity and …