During the past few years contradictory reports have appeared in the literature concerning the behavior of plasma fatty acids after the injection of adrenalin. Himwich and his collaborators (1, 2, 3) claimed to have demonstrated a sharp rise in plasma fatty acids after the subcutaneous injection of adrenalin in dogs and after emotional stimulation. Koskoff and Dusser de Barenne (4) have reporte...

Solutions of Brønsted acids with bases in aprotic solvents are not only common model systems to study the fundamentals of proton transfer pathways but are also highly relevant to Brønsted acid catalysis. Despite their importance the light nature of the proton makes characterization of acid-base aggregates challenging. Here, we track such acid-base interactions over a broad range of relative com...

The development of new surfaces, highly sticky and conducting, is a great challenge in the field microdevices fabrication, more precisely for 3D assembly microcomponents. Such surfaces were prepared by electrochemical deposition polyaniline films. films from phosphoric acid solution adhesive than ones obtained other acids. Indeed, adhesion H3PO4 was found to be high (> 1 µN) stable time, as sho...

A high enantiomer-selectivity for the polymerization of rac-lactide was achieved using chiral binaphthol-derived monophosphoric acids as organocatalysts. During the polymerization, d-lactide (DLA) preferentially polymerized via kinetic resolution with the maximum selectivity factor (kD/kL) of 28.3. The selective polymerization of DLA was derived from a dual activation, i.e., monomer activation ...

[structure: see text] A new system for the double amplification of the molecular chirality of simple chiral amines in achiral liquid crystalline media is described. It involves a conformationally flexible phosphoric acid based receptor that by binding to chiral amines induces chirality in the liquid crystalline matrix. Efficient cholesteric phase formation was shown by several chiral amines tha...

Nitrogen-containing organic compounds, such as a-amino acids and alkaloids, are important biologically active compounds, thus the development of efficient and enantioselective methods for the construction of carbon–nitrogen bonds is a fundamental goal in modern organic synthesis. Transitionmetal-catalyzed carbene insertion into N H bonds is one of the most efficient methods to construct carbon–...

The reaction of indole with chalcones, to give Michael-type adducts, was found to occur with good efficiency (up to 98% yield) and moderate enantioselectivity (up to 52% e.e.) in the presence of a chiral BINOL-based phosphoric acid. Furthermore, the alkylation products can be obtained in much higher e.e.s after one only crystallization.