One of the most important challenges in catalyst design is the synthesis of stable promoters without compromising their activity. For this reason, it is important to understand the factors leading to decomposition of such catalysts, especially if side-products negatively affect the activity and selectivity of the starting complex. In this context, the understanding of termination and decomposit...

traditional systems for olefin/paraffin separation, like low-temperature distillation, are expensive and very energy consuming, and therefore, alternative separation methods are desired. facilitated transport membranes are new tools for this separation to be substituted in large scale separation of olefin-paraffin mixtures. to design a membrane process for olefin-paraffin separation, equilibriu...

The palladium-catalyzed β-arylation of ester enolates with aryl bromides was studied both experimentally and computationally. First, the effect of the ligand on the selectivity of the α/β-arylation reactions of ortho- and meta-fluorobromobenzene was described. Selective β-arylation was observed for the reaction of o-fluorobromobenzene with a range of biarylphosphine ligands, whereas α-arylation...

In this research project, the nitrito nitro isomerization of [Co (NH3)5No2]F2 complex has been studied. Isomerization of this complex in the solid state follows a first order kinetics. The rate of isomerization at different temperatures was determined using a Fourier Transform Lnfrared Spectrophotometer. ? and ? are calculated at 298 K. The infrared, visible and ultraviolet spectra of th...

Abstract The hydrogenation and isomerization of the three isomeric propenylbenzenes, allylbenzene (AB), trans -β-methylstyrene (TBMS) cis (CBMS), in liquid phase, was investigated over a 1% Pt/alumina catalyst at 313 K 1 barg. When reacted individually, -isomer gave fastest rate followed by AB, with having slowest giving ratio rates CBMS:AB:TBMS 57:19:1. All isomers high selectivity to phenylpr...

Native and promiscuous catalytic activities of flavin-dependent Old Yellow Enzymes (OYEs) reported to date are initiated by the reduced flavin upon electron transfer. As a rare exception, isomerization nonactivated C═C bond was shown be hydride-independent with two nonstereoselective yeast OYEs. Here, we report asymmetric prochiral model substrate, γ-methyl β,γ-butenolide, corresponding (R)- (S...