نتایج جستجو برای: palladium compounds

تعداد نتایج: 237995  

2014
Dawei Feng Pekka Taskinen

Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Dawei Feng Name of the doctoral dissertation Thermodynamic Measurements on Alloys and Compounds in Ag-Au-Se and Ag-Pd systems by the Electromotive Force Method Publisher School of Chemical Technology Unit Department of Materials Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 172/2014 ...

Journal: :Inorganic chemistry frontiers 2014
Malgorzata Frik Josefina Jiménez Vadim Vasilevski Monica Carreira Andreia de Almeida Elena Gascón Farrah Benoit Mercedes Sanaú Angela Casini María Contel

A series of coordination gold(III), palladium(II), and platinum(II) complexes with a luminescent iminophosphorane ligand derived from 8-aminoquinoline [Ph3P=N-C9H6N] (1), have been synthesized and structurally characterized. The coordination palladium(II) and platinum(II) compounds can evolve further, under appropriate conditions, to give stable cyclometalated endo species [M{κ3-C,N,N-C6H4(PPh2...

Journal: :Dalton transactions 2007
Ermitas Alcalde Rosa M Ceder Cristina López Neus Mesquida Guillermo Muller Sandra Rodríguez

The synthesis of simple imidazolium-based ligand precursors containing a 1,3-alkylidene-2,4,6-trimethylbenzene spacer was examined and different synthetic protocols were applied depending on the nature of the alkylidene arm. For a methylene arm, simple dications 5a,b.2CI were obtained directly. The higher homologue counterparts were conveniently prepared by general multistep routes following a ...

Journal: :Molecules 2008
Ibrahim Mustafa El-Deeb Jae Chun Ryu So Ha Lee

New N-aryl-4-(pyridin-3-yl)pyrimidin-2-amine derivatives were synthesized from the corresponding amines, applying optimized Buchwald-Hartwig amination conditions using dichlorobis(triphenylphosphine)Pd(II), xantphos and sodium tertbutoxide in refluxing toluene under a nitrogen atmosphere. The target N-aryl derivatives were obtained in moderate to good yields ranging from 27% to 82%. The procedu...

Journal: :Organic letters 2007
Michelle M Rogers Vasily Kotov Jaruwan Chatwichien Shannon S Stahl

Palladium-catalyzed methods for intermolecular aerobic oxidative amination of alkenes have been identified that are compatible with the use of alkene as the limiting reagent. These procedures, which enhance the utility of this reaction with alkenes that are not commercially available, are demonstrated with substrates bearing dialkyl ether, carboxyester, epoxide, and silyl ether groups.

Journal: :Molecules 2013
Rafael Bautista Pablo A Montoya Araceli Rebollar Eleuterio Burgueño Joaquín Tamariz

A palladium-catalyzed synthesis of the carbazole framework is described, including the preparation of 2-, 5-, and 7-oxygenated natural and unnatural carbazole alkaloids. A series of N-arylcyclohexane enaminones, generated by condensation of cyclohexane-1,3-dione with diverse anilines, were aromatized by a Pd(0)-catalyzed thermal treatment to afford the corresponding diarylamines. The latter wer...

2015
Xin-Hu Hu Zhen-Ting Liu Long Shao Xiang-Ping Hu

Abstract Terminal propargylic compounds containing an alkyne unit and an alcohol or ester group in the propargylic position have a fairly acidic acetylenic hydrogen atom; this makes them versatile substrates for further chemical transformation. Some transition metals such as ruthenium or copper exhibit specific affinity for terminal propargylic compounds, generating dielectrophilic ruthenium– o...

Journal: :Angewandte Chemie 2015
Zhengwang Chen Huiying Zeng Simon A Girard Feng Wang Ning Chen Chao-Jun Li

The transition-metal-catalyzed amination of aryl halides has been the most powerful method for the formation of aryl amines over the past decades. Phenols are regarded as ideal alternatives to aryl halides as coupling partners in cross-couplings. An efficient palladium-catalyzed formal cross-coupling of phenols with various amines and anilines has now been developed. A variety of substituted ph...

Journal: :Chemical & pharmaceutical bulletin 2002
Scott Eric Denmark Ramzi Farah Sweis

This review highlights the rapid evolution of the newly-developed class of palladium-catalyzed cross-coupling reactions of organosilicon compounds. A myriad of heteroatom-containing silicon moieties (silyl hydrides, siletanes, silanols, silyl ethers, orthosiliconates, di- and polysiloxanes and pyridylsilanes) undergo mild and stereospecific cross-coupling. The diversity of methods for introduct...

Journal: :Dalton transactions 2010
Sergey P Gavrish Yaroslaw D Lampeka Hans Pritzkow Philip Lightfoot

The crystal structures of the palladium(II) complexes of the open-chain and macrocyclic ligands PdL(1).3H(2)O, PdL(2).6H(2)O and PdL(3).5H(2)O have been determined (H(2)L(1) = 1,4,8,11-tetraazaundecane-5,7-dione, H(2)L(2) = 1,4,8,11-tetraazacyclotetradecane-5,7-dione, H(2)L(3) = 1,4,8,11-tetraazacyclotridecane-5,7-dione). The coordination polyhedra of the palladium(II) ions in all complexes are...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید