Silica Vanadic Acid, SVA, (oxo-vanadium has been supported on silica) as a dual Lewis and Bronsted acid ability was prepared and efficiently catalyzed one-pot multi-component condensation of enolizable ketones or alkyl acetoacetates with aromatic aldehydes, acetonitrile and acetyl chloride. The described reaction was produced β-acetamido ketone or ester derivatives in high to excellent yields i...

Flattened carbon nanotubes (flCNTs) are a promising form of composite material reinforcement because their capacity for self-assembly and packing efficiency, which could ultimately lead to improved thermo-mechanical properties relative current state-of-the-art materials. An important design parameter materials is the choice polymer matrix , as characteristics reinforcement/polymer interface can...

Esters of plant oils are preferred to parent oils if used as fuels in diesel engines because esterification reduces the viscosity of plant oils and makes it comparable to that of diesel. The present work mainly deals with the effect of storage time on the quality of plant oils and their esters with respect to mainly FFA content, viscosity and change in weight. The study was carried out for a pe...

Surfactants with an ester bond connecting the polar headgroup and hydrophobic tail are common. They easy to synthesize, they can often be made from natural raw materials their biodegradation profile is generally good, partly due lipase or esterase catalyzed breakdown of in sewage plants. A labile molecule may cause problems, however. formulated at relatively high pH it important that remain int...