Towards the standardization of flow chemistry protocols for organic reactions

CA Hone, CO Kappe - Chemistry‐Methods, 2021 - Wiley Online Library
Flow chemistry studies can sometimes be difficult to reproduce. In this article we provide
guidance to scientists for experimental details that should be considered as part of any …

Flow synthesis approaches to privileged scaffolds–recent routes reviewed for green and sustainable aspects

AI Alfano, M Brindisi, H Lange - Green Chemistry, 2021 - pubs.rsc.org
Privileged scaffolds as starting points toward biologically active molecules represent a
neuralgic point in drug discovery. The ability of synthetic chemists concerned with their …

Transition Metal Catalyzed Reductive Cyclization Reactions of Nitroarenes and Nitroalkenes

F Ferretti, DR Ramadan, F Ragaini - ChemCatChem, 2019 - Wiley Online Library
Nitroarenes are the entry point for the production of most nitrogen‐containing aromatic
compounds. Thus, any transformation that leads directly from them to the final product allows …

Formic Acid as Carbon Monoxide Source in the Palladium-Catalyzed N-Heterocyclization of o-Nitrostyrenes to Indoles

MA Fouad, F Ferretti, F Ragaini - The Journal of Organic …, 2023 - ACS Publications
The reductive cyclization reaction of o-nitrostyrenes to generate indoles has been
investigated for three decades using CO as a cheap reducing agent, but it remains an …

[HTML][HTML] Recent progress in the transition metal catalyzed synthesis of indoles

R Mancuso, R Dalpozzo - Catalysts, 2018 - mdpi.com
Indole is the most frequently found heterocyclic core structures in pharmaceuticals, natural
products, agrochemicals, dyes and fragrances. For about 150 years, chemists were …

[HTML][HTML] Continuous flow synthesis of heterocycles: A recent update on the flow synthesis of indoles

M Colella, L Degennaro, R Luisi - Molecules, 2020 - mdpi.com
Indole derivatives are among the most useful and interesting heterocycles employed in drug
discovery and medicinal chemistry. In addition, flow chemistry and flow technology are …

Synthesis of indoles by reductive cyclization of nitro compounds using formate esters as CO surrogates

M Ahmed Fouad, F Ferretti, D Formenti… - European Journal of …, 2021 - Wiley Online Library
Alkyl and aryl formate esters were evaluated as CO sources in the Pd‐and Pd/Ru‐catalyzed
reductive cyclization of 2‐nitrostyrenes to give indoles. Whereas the use of alkyl formates …

Flow chemistry: towards a more sustainable heterocyclic synthesis

P Brandão, M Pineiro… - European Journal of …, 2019 - Wiley Online Library
Flow Chemistry is a revolutionary field in Organic Chemistry. By changing the conventional
methods and apparatus applied in the chemical synthesis, flow chemistry emerges as a …

Continuous Flow Synthesis of Carbonylated Heterocycles via Pd-Catalyzed Oxidative Carbonylation Using CO and O2 at Elevated Temperatures and Pressures

Y Chen, CA Hone, B Gutmann… - … Process Research & …, 2017 - ACS Publications
A continuous-flow Pd-catalyzed oxidative carbonylation protocol utilizing CO and O2 gas for
the synthesis of carbonylated heterocycles is described. The optimization of temperature …

Continuous Flow Synthesis of Quinolines via a Scalable Tandem Photoisomerization‐Cyclization Process

M Di Filippo, M Baumann - European Journal of Organic …, 2020 - Wiley Online Library
A continuous photochemical process is presented that renders a series of quinoline
products via an alkene isomerization and cyclocondensation cascade. It is demonstrated …