Browse by Subject "palladium"
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Development and mechanistic investigation of the palladium-catalyzed α-arylation of aldehydes and N-arylation of ammonia (2011-01-21)A general method for the palladium-catalyzed α-arylation of aldehydes was developed to couple linear and branched aldehydes with electron-poor and electron-rich bromo- and chloroarenes in high yields. Catalysts generated ...
(1997)Small metal particles in the range of a few nanometers in diameter are seen to progressively disorder when the 100 keV electron beam of a Scanning Transmission Electron Microscope (STEM) is held stationary on the particle. ...
Measuring Changes in Optical Constants of Tungsten Oxide, Tin Oxide, Zinc Oxide and Palladium for Gas Sensing Applications (2010-05)Hydrogen is seen as a promising alternative energy source, but its potential to ignite at a concentration as low as 4% in air is a concern. The motivation is to determine whether certain materials may be sensitive to ...
(2013-02-03)Here we report the synthesis of a series of palladium amido complexes that undergo some of the fundamental reactions of organometallic chemistry. We have discovered two new palladium mediated C-N bond-forming reactions: ...
(2012-06-27)The reductive eliminations of primary arylamines from a series of bisphosphine-ligated arylpalladium(II) parent amido complexes countered several established trends. In contrast to arylamido and alkylamido complexes of the ...
Part I. Large scale procedure for the α-arylation of esters catalyzed by the pd(i) dimer [p(tbu)3]pd(μ-br)]2. Part II. Palladium-catalyzed γ-arylation of α,β-unsaturated esters (2010-08-20)We report the development of a procedure for the α-arylation of esters on 42 mmol scale which did not require use of a glovebox. The coupling of 3-bromoanisole and methyl isobutyrate catalyzed by 0.075 % [(P(tBu)3Pd(μ-Br)]2 ...
Preparative and mechanistic aspects of palladium-catalyzed cross-coupling reactions of alkali-metal arylsilanolates (2010-08-20)The development of alkali-metal arylsilanolates as notable organometallic reagents for the preparation of biaryls has been realized through in depth mechanistic and preparative studies. The alkali-metal salts (potassium ...
Synthesis, characterization and chemical vapor deposition of transition metal di(tert-butyl)amido compounds (2008)Although the transition metal chemistry of many dialkylamido ligands has been well studied, the chemistry of the bulky di(tert-butyl)amido ligand has been largely overlooked. The di(tert-butyl)amido ligand is well suited ...