News Picture Generic

First catalytic asymmetric hydrogenation of quinoxaline-2-carboxylates

May 3, 2016

Villeneuve d’Ascq Cedex / Paris, France First catalytic asymmetric hydrogenation of quinoxaline-2-carboxylates “For the first time, the asymmetric hydrogenation of quinoxaline-2-carboxylates was performed successfully. The best catalysts are based on iridium complexes modified by chiral phosphorous ligands. Accelerated examination of ligands and catalysts has been undertaken by using a Chemspeed workstation, which enables carrying out, in parallel, eight independent catalytic reactions at the laboratory scale. Tetrahydroquinoxaline-2-carboxylates could be obtained with high yields and up to 74% ee.” For details: First catalytic asymmetric hydrogenation of quinoxaline-2-carboxylates Anna M. Maja,*, Svetlana Heyteb, Marcia Araqueb, Franck Dumeignilb,c, Sébastien Paulb, Isabelle Suissea,*, Francine Agbossou-Niedercorna,* a UCCS (Unité de Catalyse et de Chimie du Solide UMR 8181), CNRS, Université de Lille, ENSCL, Cité Scientifique, CS 90108, 59652 Villeneuve d’Ascq Cedex, France b UCCS (Unité de Catalyse et de Chimie du Solide UMR 8181), CNRS, Université de Lille, Ecole Centrale de Lille, Cité Scientifique, CS 20048, 59652 Villeneuve d’Ascq Cedex, France c Institut Universitaire de France, 103 Boulevard Saint-Michel, 75005 Paris, France * Corresponding authors Tetrahedron, Volume 72, Issue 10, 10 March 2016, Pages 1375–1380

Other Recent News

Discover more news articles you might be interested in

Read more about Localization, inspection, and reasoning (LIRA) module for autonomous workflows in self-driving laboratories
News Picture 1 1 V2
Featured
May
5

Localization, inspection, and reasoning (LIRA) module for autonomous workflows in self-driving laboratories

Self-driving labs (SDLs) combine robotic automation with artificial intelligence (AI) to allow autonomous, high-throughput experimentation. However, robot manipulation in most SDL workflows operates in an open-loop manner, lacking real-time error detection and error correction. This can reduce reliability and overall efficiency.

Read more about An Automation Platform for the Chemoenzymatic Synthesis of Complex Sulfated and Branched Glycans
News Picture 1 1 V2
Apr
28

An Automation Platform for the Chemoenzymatic Synthesis of Complex Sulfated and Branched Glycans

Diverse collections of well-defined glycans are needed to investigate the molecular mechanisms by which these biomolecules mediate biological and disease processes. Several automation approaches have been introduced to accelerate the enzymatic synthesis of complex glycans. These methodologies have, however, provided only relatively simple oligosaccharides due to limitations of glycosyl transferase selectivity.

Read more about Accelerating Porosity Assessment in Solid Materials via SemiAutomated Platforms
News Picture 1 1 V2
Featured
Apr
21

Accelerating Porosity Assessment in Solid Materials via SemiAutomated Platforms

The design and discovery of porous materials have become a central theme in materials science, driven by their applications in gas storage, separation, carbon capture, and catalysis. Rapid advances in synthetic chemistry, particularly in metal–organic frameworks, porous organic cages, and conjugated microporous polymers, have enabled the generation of increasingly large and diverse material libraries.

© Chemspeed Technologies 2026