Several 1- p-R-aryl -3,3-dimethyltriazenes are anodically oxidized at a Pt electrode in acetonitrile/0.1- p-R-aryl -3,3-dimethyltriazeneshosphate in preparative-scale controlled potential bulk electrolyses.
The efficient biocatalytic process with CLEAs proved to be feasible on a 250-mL preparative scale, exhibiting great potential for asymmetric synthesis of chiral diols.
The potential-dependent chemical reaction of perchloroethylene (PCE) on copper in neutral noncomplexing aqueous media is explored by means of surface-enhanced Raman spectroscopy (SERS), linear sweep voltammetry and preparative electrolysis at controlled potential.
Anodic oxidation of enaminones (1a-1e), prepared from p-substituted acetophenones and N,N-dimethylformamide dimethylacetal were studied under different solution conditions using cyclic voltammetry, coulometry at controlled potential and preparative electrolysis.
Recent advances in DNA synthesis, genome engineering, high-throughput analytics, model-based analysis of biochemical systems and (semi- rational protein engineering semi- rationale have all the tools available to rationally design and efficiently oproteinsuch systengineeringmesuggestfinally harvesthateir potential for preparative syntheses.
To provide information on preparative aspects and on potential uncertainties, preferably simple off-line methods were compared to determine (1) the total concentration of suspensions of five metal-based ENP materials (Ag, TiO2, CeO2, ZnO, and Au; two sizes), and (2) six methods to quantify the "dissolved" fraction of an Ag ENP suspension.
The few experimental demonstrations of this concept already revealed its potential for the preparative separation of pharmaceuticals and fine chemicals.
In addition, dichloroethylene (DCE) is detected (but not trichloroethylene (TCE)) in this potential region during preparative electrolysis.
One promising preparative method that offers the potential for improved platinum (Pt) dispersion of electrocatalysts is electroless deposition (ED).
The electrolysis of cinnamoyl chloride in dry acetone anhydrous lithium perchlorate is carried out under controlled cathodic potential on a preparative scale.
