A new approach for the synthesis of alpha,beta-unsaturated delta-lactones, a unit present in many natural products with interesting biological activities is described. The approach was based on the use of a vinyl telluride, ...

The hydrogen transfer reduction of an α,β-unsaturated ketone, mesityl oxide, was studied on several single oxides in the gas-phase using 2-propanol as a hydrogen source. Selectivity is essentially determined by oxide ...

The kinetics of the reactions of Cl atoms with three unsaturated carbonyl compounds at 298 K and atmospheric pressure were investigated for the first time using the GC-FID technique. Rate coefficients (in cm3 molecule-1 ...

Supramolecular gels are soft materials formed mainly by low molecular weight units held together by intermolecular interactions. Stabilizing these kinds of materials is quite a challenge due to the influence of multiple ...

The gas-phase regioselective reduction of mesityl oxide to the allyl alcohol using 2-propanol as a hydrogen donor was studied at 523 K on basic MgO, MgAl0.33Ox and Cu0.05MgAl0.65Ox oxides. Catalysts were characterized using ...

The paper deals with the mechanical behaviour of a natural volcanic silty soil sampled from steep slopes. This soil is very loose and unsaturated over most of the year due to climate conditions. Thus so-called wetting ...

The mechanical behaviour of natural clays is significantly affected by their in situ or initial structure in the form of cementation or interparticle bonding. This behaviour can differ substantially from the behaviour of ...

Thin polymer films were deposited from acetylene and argon mixtures by plasma immersion ion implantation and deposition. The effect of the pulse frequency, v, on molecular structure, optical gap, contact angle and hardness ...