The versatility of olefin metathesis is evident from its successful applications ranging natural product synthesis to the valorization renewable feedstocks. On other side, flow chemistry has recently gained particular interest among synthetic community, offering valuable alternatives classic batch and paving way development new transformations. application continuous represents one most promisi...

A system for catalytic trimerization of ethylene utilizing CrCl3(THF)3 and a diphosphine ligand PNPOMe [= (o-MeO-C6H4)2PN(Me)P(o-MeO-C6H4)2] has been investigated. The coordination chemistry of chromium with PNPOMe has been explored, and (PNPOMe)CrCl3 and (PNPOMe)CrPh3 (3) have been synthesized by ether displacement from chromium(III) precursors. Salt metathesis of (PNPOMe)CrCl3 with o,o'-biphe...

Abstract We investigated the effect of supports based on ZrO 2 , TiO Al O 3 and SiO rate propene formation in metathesis ethylene with 2-butene at 50 °C over Mo-containing catalysts possessing highly dispersed MoO x . Large improvements this were achieved when using composed mixed oxides (ZrO –SiO –PO 4 ; ) rather than individual ). Although previous literature studies dealing reaction - or -su...

the focus of this paper lies on abu ali farsi's general views on the development of linguistic phenomena including synonymity, antonymity, parallelism, lexical assimilation, and metathesis. the paper sheds light on the views erroneously attributed to abu ali farsi, somehow analyzing and rectifying misinterpretations given to his views.

Chemical biology relies on effective synthetic chemistry for building molecules to probe and modulate biological function. Olefin metathesis in organic solvents is a valuable addition to this armamentarium, and developments during the previous decade are enabling metathesis in aqueous solvents for the manipulation of biomolecules. Functional group-tolerant ruthenium metathesis catalysts modifie...

Palladium-catalyzed acetylene trimerization and the metathesis of olefins catalyzed by molybdenum and its oxides are investigated in ultrahigh vacuum and at high pressures. Benzene is formed on Pd(111) by the reaction between adsorbed acetylene and a surface C4 metallocycle. The resulting benzene evolves in temperature-programmed desorption in two distinct states. The low-temperature state is p...

Over the past decade, ruthenium-mediated metathesis transformations, including cross-metathesis, ring-closing metathesis, enyne metathesis, ring-opening metathesis polymerization, and also tandem processes, belong to the most intensively studied reactions. Many applications of olefin metathesis in the synthesis of natural products have been recently described. Also in the field of steroid chemi...

Whereas the olefin metathesis is recognized as a powerful tool to produce alkene, use of fluoroalkenes in metathesis-catalyzed reactions still remains major current challenge. Herein, we presented main developments that field both ring-closing and cross-metathesis, highlighting improvements these past years.

Ring-opening metathesis polymerization (ROMP) of norbornene (NB) and its derivatives N-adamantyl-exoendo-norbornene-5,6-dicarboximide (AdNDI) and N-cyclohexyl-exo-endo-norbornene-5,6-dicarboximide (CyNDI) in the presence of cis-1,4-dichloro-2-butene (2a) and cis-1,2-dichloro-ethylene (2b) as chain transfer agents (CTAs) using a [1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazolilydene] (PCy3)C...