Here we present the preparation of a variety of diarylmethanes obtained via ultrasound Stille coupling under palladium catalysis between some substituted aryl compounds and benzyltributyltin compounds generated through sonicated Barbier reaction in a very short time reaction and excellent yield. The study reported below compares different methods to optimize the synthesis of usually unstable be...

New photoluminescent donor-acceptor-donor (DAD) molecules, namely 5'-aryl-substituted 2,5-bis(3-decyl-2,2'-bithiophen-5-yl)-1,3,4-oxadiazoles were prepared by palladium-catalyzed coupling from readily available compounds such as ethyl 3-decyl-2,2'-bithiophene-5-carboxylate and aryl halides. The obtained compounds feature increasing bathochromic shifts in their emission spectra with increasing a...

Åkerbladh, L. 2017. Palladium(0)-Catalysed Carbonylative Multicomponent Reactions. Synthesis of Heterocycles and the Application of Quinolinyl Pyrimidines as Enzyme Inhibitors. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Pharmacy 237. 86 pp. Uppsala: Acta Universitatis Upsaliensis. ISBN 978-91-513-0083-2. Palladium-catalysed carbonylative multicomponent reaction...

The present work reports the impregnation of palladium (Pd) or platinum (Pt) on hierarchical porous zeolite catalysts for Volatile Organic Compounds (VOCs) oxidation. (NaYmod) was synthesized via a top-down approach to incorporate mesoporosity into microporous NaY. This process achieved through three steps synthesis: dealumination, desilication and alkaline treatment. 0.5 wt% Pd Pt precursors w...

The purpose of this study was to evaluate the effect of primers on bonding between a silver-palladium-copper-gold alloy and an indirect composite material. Cast disks were air-abraded with alumina, conditioned with one of five primers (Alloy Primer, Luna-Wing Primer, Metal Primer II, Metaltite, M.L. Primer), and bonded with a light-activated indirect composite. Shear bond strengths were determi...

Nucleophilic substitution in different non-aqueous solvents at square planar complexes of palladium(II) with l-(2-hydroxyphenyl)-3,5-diphenylformazan ( H 2 F 0 ) according to FoPdX + Y -» FoPdY + X , with X = ammonia and pyridine and Y = triphenylphosphine, thiourea and the thiocyanate ion, obeys the rate law: rate = ki[FoPdX] + k2[FoPdX][Y]. Values of ki and k2 were obtained at 25.0 °C. From m...

Catalytic hydrogenation of aromatic compounds is an important reaction which is useful for making key intermediates in organic chemistry and for the production of aromaticcontent-free fuels. More recently, there has been much interest in the potential for storage of molecular hydrogen, as an energy source, by catalytic hydrogenation of carboneous materials (e.g., fullerene and carbon nanotubes)...

three new complexes of formula [pd(bpy)(r-nh-css)] cl (where bpy is 2/2′- bipyridine, and r-nh-css is butylamine, hexylamine- and octyamine-dithiocabamate anion) have been synthesized by university of sistan and blachostan. these complexes have been characterized by spectroscopic methods such as ultraviolet-visible, infrared and 1h-nmr as well as conductivity measurements and chemical analysis....

Herein, we report the application of allyl acetate to the palladium-catalysed dearomatising diallylation of indoles. The reaction can be carried out by using a readily available palladium catalyst at room temperature, and can be applied to a wide range of substituted indoles to provide access to the corresponding 3,3-diallylindolinines. These compounds are versatile synthetic intermediates that...

Phosphinoalkylnitriles, Phosphine Complexes of Palladium, Crystal Structure, Catalysis, -Lactones Phosphinoalkylnitriles R2P-(CH2)„-CN {R = isopropyl ('pr), phenyl (ph), cyclohexyl (‘ hex), n 3, 6, 10} have been prepared starting from the corresponding secondary phosphines in an easy three step synthesis. All new compounds were characterized by their 'H -, i3C and 31P NMR data. Some of these ne...