638439

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Showing 1-9 of 9 results for "638439" within Papers

Photophysical properties of three coordinated copper(i) complexes bearing 1,10-phenanthroline and a monodentate phosphine ligand.

Daichi Kakizoe et al.

Dalton transactions (Cambridge, England : 2003), 46(43), 14804-14811 (2017-10-19)

We report the synthesis and photophysical properties of Cu(i) complexes with 1,10-phenanthroline (phen) and monodentate phosphine ligands. Single crystal X-ray structural analysis revealed that these have three-coordinated trigonal planar geometries. We also found that one of them, [Cu(phen)(Johnphos)]BF

Acid, silver, and solvent-free gold-catalyzed hydrophenoxylation of internal alkynes.

Marcia E Richard et al.

Beilstein journal of organic chemistry, 9, 2002-2008 (2013-11-10)

A range of arylgold compounds have been synthesized and investigated as single-component catalysts for the hydrophenoxylation of unactivated internal alkynes. Both carbene and phosphine-ligated compounds were screened as part of this work, and the most efficient catalysts contained either JohnPhos

Palladium-catalyzed selective 2,3-diarylation of alpha,alpha-disubstituted 3-thiophenemethanols via cleavage of C-H and C-C bonds.

Masaya Nakano et al.

The Journal of organic chemistry, 71(21), 8309-8311 (2006-10-10)

Alpha,alpha-disubstituted 3-thiophenemethanols undergo selective diarylation accompanied by cleavage of the C-H and C-C bonds of the 2- and 3-positions, respectively, upon treatment with aryl bromides in the presence of a palladium catalyst to give the corresponding 2,3-diarylthiophenes in good yields.

Coordination chemistry of gold catalysts in solution: a detailed NMR study.

Alexander Zhdanko et al.

Chemistry (Weinheim an der Bergstrasse, Germany), 18(46), 14732-14744 (2012-09-29)

Coordination chemistry of gold catalysts bearing eight different ligands [L=PPh(3), JohnPhos (L2), Xphos (L3), DTBP, IMes, IPr, dppf, S-tolBINAP (L8)] has been studied by NMR spectroscopy in solution at room temperature. Cationic or neutral mononuclear complexes LAuX (L=L2, L3, IMes

Artamkina, Galina A.; et al.

Synlett, 2, 235-238 (2006)

Biaryl phosphane ligands in palladium-catalyzed amination.

David S Surry et al.

Angewandte Chemie (International ed. in English), 47(34), 6338-6361 (2008-07-30)

Palladium-catalyzed amination reactions of aryl halides have undergone rapid development in the last 12 years, largely driven by the implementation of new classes of ligands. Biaryl phosphanes have proven to provide especially active catalysts in this context. This Review discusses

Suzuki-Miyaura Cross-Coupling of Benzylic Bromides Under Microwave Conditions.

Steven W McDaniel et al.

Tetrahedron letters, 52(43), 5656-5658 (2011-10-04)

A procedure for benzylic Suzuki-Miyaura cross-coupling under microwave conditions has been developed. These conditions allowed for heterocyclic compounds to be coupled. Optimum conditions found were Pd(OAc)(2), JohnPhos as the catalyst and ligand, potassium carbonate as base, and DMF as the

Dialkylbiaryl Phosphines in Pd-Catalyzed Amination: A User's Guide.

David S Surry et al.

Chemical science, 2(1), 27-50 (2011-01-01)

Dialkylbiaryl phosphines are a valuable class of ligand for Pd-catalyzed amination reactions and have been applied in a range of contexts. This review attempts to aid the reader in the selection of the best choice of reaction conditions and ligand

Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions employing dialkylbiaryl phosphine ligands.

Ruben Martin et al.

Accounts of chemical research, 41(11), 1461-1473 (2008-07-16)

The cores of many types of polymers, ligands, natural products, and pharmaceuticals contain biaryl or substituted aromatic structures, and efficient methods of synthesizing these structures are crucial to the work of a broad spectrum of organic chemists. Recently, Pd-catalyzed carbon-carbon

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