Chemometric optimization of chemical reactions with spectroscopic measurements
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A review. Although the synthesis of beta -lactams by means of tethered Ugi reactions was known since the early 1960s, the 1995 report from Ugi's group could be regarded as a turning point in the development of novel multicomponent reactions (MCRs) for hete ...
NOVELTY - A plate comprises an electroconductive substrate (1) at least partially covered with sintered nanoparticles (2), deposited as an array of individual spots, for use as a sorbing phase for a sample, and for supporting ionization of sorbed sample mo ...
The derivatization of cysteine-containing peptides with benzoquinone compounds is rapid, quantitative and specific in acidic media. The conversion of cysteines into hydrophobic benzoquinone-adducted residues in peptides is used here to alter the chromatogr ...
The goal of our project (HES-SO n°11246) is to develop chemometric methods that enhance the development of chemical reactions. Semi-batch experiments are performed using a fully automated chemical reactor. Real-time analytical data, infrared (IR) spectra f ...
T-BuP(NH2)2 reacts with base-stabilized group 13 tri-hydrides with adduct formation (THF-BH3), with redn. to give t-BuPH2 (Me3N-AlH3) and with elimination of H22 and formation of a metallonitridophosphinate (Me3N-GaH3). In contrast, the reaction with Cp*Ti ...
The first aza-C-disaccharide (D-azaMan-beta-CHz-(1 -> 6)-D-Man-alpha-OMe) that mimicks alpha-D-Manp-(1 -> 6)-alpha-D-ManOMe was made in 1994 by Johnson and coworkers. Several synthetic approaches to these disaccharide mimetics have been proposed. These are ...
We describe the first case of efavirenz-induced urolithiasis in a 47-year-old HIV-positive patient. Urinary obstruction led to pyelonephritis and septic shock, requiring emergency ureteral catheterisation. The subsequent clinical course was favourable, all ...
The present thesis work deals with the investigation of the heterogeneous reactions involving nitrate radical (NO3), dinitrogen pentoxide (N2O5) and ozone (O3) on surrogates of atmospheric mineral dust particles characteristic of the troposphere. An additi ...
Liq. sepn. methods in combination with electrospray mass spectrometry as well as the recently introduced fragmentation method electron capture dissocn. (ECD) have become powerful tools in proteomics research. This paper presents the results of the first su ...
The first part of this laboratory study deals with heterogeneous reactions of bromine- and chlorine-containing species relevant to the atmosphere with solid model alkali salt substrates. The second part of this work treats the heterogeneous interaction of ...