Alkoxy radicals see the light: new paradigms of photochemical synthesis

L Chang, Q An, L Duan, K Feng, Z Zuo - Chemical Reviews, 2021 - ACS Publications
Alkoxy radicals are highly reactive species that have long been recognized as versatile
intermediates in organic synthesis. However, their development has long been impeded due …

Photocatalysis in the life science industry

L Candish, KD Collins, GC Cook, JJ Douglas… - Chemical …, 2021 - ACS Publications
In the pursuit of new pharmaceuticals and agrochemicals, chemists in the life science
industry require access to mild and robust synthetic methodologies to systematically modify …

Trifluoromethyl Nonaflate: A Practical Trifluoromethoxylating Reagent and its Application to the Regio‐and Stereoselective Synthesis of Trifluoromethoxylated Alkenes

Z Lu, T Kumon, GB Hammond… - Angewandte Chemie …, 2021 - Wiley Online Library
The trifluoromethoxy group has elicited much interest among drug and agrochemical
discovery teams because of its unique properties. We developed trifluoromethyl …

Difluoromethyl Radical Triggered Tandem Reaction of N-Allyl Amides to Difluoromethylated β-Amino Alcohols by Photoredox Catalysis

WB Qin, W Xiong, YS Zhao, KZ Fu, L Su, GK Liu - Organic Letters, 2021 - ACS Publications
An elegant tandem reaction process for transferring N-allyl amide into CF2H-β-amino
alcohol is described. This approach proceeded smoothly under visible light irradiation in the …

Difluorocarbene‐Induced Ring‐Opening Difluoromethylation‐Halogenation of Cyclic (Thio)Ethers with TMSCF2X (X=Br, Cl)**

R Zhang, Q Li, Q Xie, C Ni, J Hu - Chemistry–A European …, 2021 - Wiley Online Library
The ring‐opening difluoromethylation‐halogenation of cyclic (thio) ethers is reported
through a simple strategy relying on carbon‐chalcogen bond activation with …

Chemoselective desulfurization-fluorination/bromination of carbonofluoridothioates for the O-trifluoromethylation and O-bromodifluoromethylation of alcohols

J Liu, H Xiang, L Jiang, W Yi - Science China Chemistry, 2021 - Springer
Herein, a method for synthesizing various alkyl trifluoromethyl and alkyl bromodifluoromethyl
ethers using carbonofluoridothioates (R–OC (= S) F) as precursors has been described …

Transition Metal‐Free Regioselective Remote C− H Bond 2, 2, 2‐Trifluoroethoxylation of 8‐Aminoquinoline Derivatives at the C5 Position

L Ruyet, T Poisson, T Besset - European Journal of Organic …, 2021 - Wiley Online Library
Abstract The regioselective 2, 2, 2‐trifluoroethoxylation at the C5 position of amides derived
from the 8‐aminoquinoline has been developed. In the presence of PIDA, an unprecedented …

[PDF][PDF] 1.9 Oxygen-Centered Radicals

J Zhang, D Liu, Y Chen - Free Radicals: Fundamentals and …, 2021 - yiyunchen.sioc.ac.cn
Oxygen-centered radicals (R1O•) are important reactive intermediates in organic synthesis
and include carboxyl (R1= acyl), alkoxyl (R1= alkyl), phenoxyl (R1= aryl), and other related …

Efficient Monofluoroalkylation of Thiophenols or Phenols with α-Bromo-α-Fluoroketones under Mild Conditions

Z Li, M Fang, J Wu, Y Liu, Y Liu, F Wu - Synthesis, 2021 - thieme-connect.com
An efficient nucleophilic substitution reaction between α-bromo-α-fluoroketones and
thiophenols or phenols is reported for the synthesis of α-fluoro-β-ketosulfides or α-fluoro-β …