Rapid and modular access to quaternary carbons from tertiary alcohols via bimolecular homolytic substitution

CA Gould, AL Pace… - Journal of the American …, 2023 - ACS Publications
Quaternary carbons are ubiquitous in bioactive molecules; however, synthetic methods for
the construction of this motif remain underdeveloped. Here, we report the synthesis of …

Late-Stage C(sp3)–H Methylation of Drug Molecules

E Mao, DWC MacMillan - Journal of the American Chemical …, 2023 - ACS Publications
Methyl groups are well understood to play a critical role in pharmaceutical molecules,
especially those bearing saturated heterocyclic cores. Accordingly, methods that install …

Visible-light-induced iron-catalyzed synthesis of N-aryl amides from nitroarenes and chloroalkanes

QL Zhang, W Liu, Y Zhou, FL Zhang - Green Chemistry, 2023 - pubs.rsc.org
An unprecedented straightforward reductive amidation of chloroalkanes with nitroarenes
was readily accomplished by merging iron catalysis with visible-light photoredox catalysis. A …

11C-, 12C-, and 13C-cyanation of electron-rich arenes via organic photoredox catalysis

X Wu, W Chen, N Holmberg-Douglas, GT Bida, X Tu… - Chem, 2023 - cell.com
As a non-invasive imaging technology, positron emission tomography (PET) plays a crucial
role in personalized medicine, including early diagnosis, patient screening, and treatment …

Mechanistic Investigation, Wavelength-Dependent Reactivity, and Expanded Reactivity of N–Aryl Azacycle Photomediated Ring Contractions

SF Kim, H Schwarz, J Jurczyk, BR Nebgen… - Journal of the …, 2024 - ACS Publications
Under mild blue-light irradiation, α-acylated saturated heterocycles undergo a
photomediated one-atom ring contraction that extrudes a heteroatom from the cyclic core …

Selective and Functional-Group-Tolerant Photoalkylation of Imines by Energy-Transfer Photocatalysis

SK Ghosh, L He, Z Tang, RJ Comito - The Journal of Organic …, 2023 - ACS Publications
Basic amines show broad bioactivity and remain a promising source of new medicines. The
direct photoalkylation of imines offers a promising strategy for complex amines. However …

[HTML][HTML] The landscape of potential small and drug substance related nitrosamines in pharmaceuticals

J Schlingemann, MJ Burns, DJ Ponting… - Journal of …, 2023 - Elsevier
This article reports the outcome of an in silico analysis of more than 12,000 small molecule
drugs and drug impurities, identifying the nitrosatable structures, assessing their potential to …

Enantioselective nanofiltration using predictive process modeling: Bridging the gap between materials development and process requirements

AK Beke, G Szekely - Journal of Membrane Science, 2022 - Elsevier
Organic solvent nanofiltration (OSN) is a low-energy alternative for continuous separations
in the chemical industry. As the pharmaceutical sector increasingly turns toward continuous …

Facile construction of distal and diversified tertiary and quaternary stereocenters

C Liu, R Ge, J Chen, H Guo, TA Bartholome… - Proceedings of the …, 2024 - pnas.org
Exploration of novel chiral pharmaceutical candidates is motivation to immersive efforts
among synthetic chemists. Achieving skeletal construction and chiral diversity in a highly …

Redox-Neutral Decarboxylative and Desulfonylative C(sp3) Trifluoromethylation: Method Development and Mechanistic Inquiry

CM Seong, CC Roberts - The Journal of Organic Chemistry, 2023 - ACS Publications
Sodium triflinate (CF3SO2Na) is an inexpensive bench-stable radical CF3 source that is
often activated by external oxidants such as peroxides. However, despite the commercial …