Christophe Allemann

Christophe Allemann
University of Applied Sciences and Arts Western Switzerland · ChemTech — Institut des technologies chimiques

About

11
Publications
1,437
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
489
Citations
Citations since 2016
8 Research Items
83 Citations
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520
201620172018201920202021202205101520
Introduction
Christophe Allemann currently is the head of ChemTech — Institut des technologies chimiques, University of Applied Sciences and Arts Western Switzerland. Christophe does research in Flow Chemistry, Catalysis, Organic Chemistry and photochemistry. Its most recent publication is 'Continuous Processes and Flow Chemistry at the Universities of Applied Sciences in Switzerland'.

Publications

Publications (11)
Article
The toxicity of phosgene (COCl 2 ) combined with its extensive use as a reactant and building block in the chemical industry make its fast and accurate detection a prerequisite. We have developed a carboxylic derivative of 5,6‐pinenepyridine which is able to act as colorimetric and fluorimetric sensor for phosgene in air and solution. For the first...
Article
Full-text available
The complexation behavior of two novel, chiral pinene–bipyridine-type ligands ((–)-HL1 and (–)-HL2) containing a carboxylic arm towards lanthanide Ln(III) (Ln = La, Eu, Lu) ions was investigated through spectroscopic methods. The association constants of the mononuclear complexes determined from the UV-Vis titrations indicated that the ligand (–)-H...
Article
Full-text available
Two experimental methods, the Nile Red dye extraction and the Williamson ether synthesis in biphasic conditions, were used to characterize the mixing performance of a new cheap impinging jet colliding mixer from Gjosa and to compare it to other commercial micromixers (Caterpillar CPMM-R300, T-mixer, LTF MR-MX and LTF MR-MS). The Nile Red method sho...
Article
A straightforward one-pot method for the synthesis of unreported pyrido-[2,1-a]isoindolones in excellent yield is described. Two novel isoindolones were synthesized and fully characterized. The alkyl substituents on the pyridine play an important role in the outcome of the reaction. The mechanism, investigated through DFT calculations, features an...
Article
Full-text available
This year, on the 14th of January 2021 the School of Engineering and Architecture (HEIA-FR) celebrated its 125th anniversary. To celebrate, many interactive events are organized from February to September 2021.
Article
p class="Helv‐Abstract"> The aim of this work was to understand if solvent contaminants can interfere in Suzuki's cross‐coupling reactions and if it can explain the lack of robustness in industrial processes. For this purpose, several parameters were tested on the industrial model reaction between 2‐bromonaphthalene and phenylboronic acid catalyzed...
Article
Full-text available
Two novel pinene-type ligands have been synthesized and their tautomeric and self-associating behavior studied in solution and in the solid state. The first ligand, an acetylated derivative of 5,6-pinene-bipyridine, displays keto-enol tautomerism in solution. This tautomeric equilibrium was studied by NMR and UV-Vis spectroscopy in various solvents...
Article
Full-text available
This article provides an overview of activities in the fields of continuous processes, flow chemistry and microreactors at the Universities of Applied Sciences in Switzerland.
Article
Full-text available
Computational investigation of the aldol reaction of benzaldehyde with acetone catalyzed by various proline derivatives and 2-azetidine carboxylic acid reveal the origins of stereoselectivities of these reactions. Structural differences between catalysts and transition states were analyzed with density functional theory geometries in order to estab...
Article
Computational studies have led to models to understand some classic and contemporary asymmetric reactions involving organocatalysts. The Hajos-Parrish-Eder-Sauer-Wiechert reaction and intermolecular aldol reactions as well as Mannich reactions and oxyaminations catalyzed by proline and other amino acids, and Diels-Alder reactions catalyzed by MacMi...
Article
Le domaine des composés organométalliques optiquement actifs est plus que jamais un champ d'activité important. Dans ce domaine, le complexe (-)-(1S)-dicarbonyliode[μ5-(2,8,8-triméthylbicyclo[3.2.1]oct-3,6-diµene)2-yle] fer (1), appelé 2-Me-BOD-Fe(CO)2I, se profile comme une nouvelle étape dans le développement de complexes cyclopentadiènyles chira...

Network

Cited By