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Aryl Boronic Acids (aryl + boronic_acid)
Selected AbstractsAryl Trifluoroborates in Suzuki,Miyaura Coupling: The Roles of Endogenous Aryl Boronic Acid and Fluoride,ANGEWANDTE CHEMIE, Issue 30 2010Mike Butters Dr. Entscheidender Schritt: Die Biarylkupplung zwischen Aryltrifluorborat und Arylbromid erfordert die In-situ-Hydrolyse des Borreagens. Die Hydrolyseprodukte sind entscheidend dafür, dass die Reaktion mit hoher Effizienz abläuft und möglichst wenig unerwünschte Phenol- und Homokupplungs-Nebenprodukte entstehen. [source] ChemInform Abstract: Pd-Catalyzed Direct Arylation of Tautomerizable Heterocycles with Aryl Boronic Acids via C,OH Bond Activation Using Phosphonium Salts.CHEMINFORM, Issue 1 2009Fu-An Kang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] Phenanthroline Ligands in Aryl Palladium Hydrazinato Complexes: Catalysts for Efficient Coupling of Azo Compounds with Aryl Boronic Acids.CHEMINFORM, Issue 50 2007Kilian Muniz Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Chiral Phosphine,Olefin Bidentate Ligands in Asymmetric Catalysis: Rhodium-Catalyzed Asymmetric 1,4-Addition of Aryl Boronic Acids to Maleimides.CHEMINFORM, Issue 48 2005Ryo Shintani Abstract For Abstract see ChemInform Abstract in Full Text. [source] Polymer-Supported Copper Complex for C,N and C,O Cross-Coupling Reactions with Aryl Boronic Acids.CHEMINFORM, Issue 50 2004Gary C. H. Chiang Abstract For Abstract see ChemInform Abstract in Full Text. [source] Copper (II)-Mediated Arylation with Aryl Boronic Acids for the N-Derivatization of Pyrazole Libraries.CHEMINFORM, Issue 37 2004Sharon Rossiter Abstract For Abstract see ChemInform Abstract in Full Text. [source] Facile Synthesis of Diarylpyrazines Using Suzuki Coupling of Dichloropyrazines with Aryl Boronic Acids.CHEMINFORM, Issue 19 2004Nate Schultheiss Abstract For Abstract see ChemInform Abstract in Full Text. [source] Coupling Reactions of ,-Bromoalkenyl Phosphonates with Aryl Boronic Acids and Alkenyl Borates.CHEMINFORM, Issue 15 2003Yuichi Kobayashi Abstract For Abstract see ChemInform Abstract in Full Text. [source] Palladium,Imidazolium-Catalyzed Carbonylative Coupling of Aryl Diazonium Ions and Aryl Boronic Acids.CHEMINFORM, Issue 7 2003Merritt B. Andrus Abstract For Abstract see ChemInform Abstract in Full Text. [source] Boron-Based Diastereomerism and Enantiomerism in Imine Complexes , Determination of the Absolute Configuration at Boron by CD SpectroscopyEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 31 2008Manfred Braun Abstract Boron turns out to be a stable stereogenic center in imine complexes of aryl and alkyl boronates. Diastereomerically pure complexes 7a,c are obtained from chiral imine ligands 5a,b that are derived from the amino alcohol (R)- 4. The configuration at the boron atom is determined by crystal structure analyses. Racemic boronates 10a,c, available from a condensation of aryl boronic acids 6 with the achiral imine ligand 9, can be separated into stable enantiomers by HPLC on a chiral column. The racemization barrier ,G, has been determined to amount to 105,115 kJ,mol,1. The comparison of calculated and measured CD spectra permits to assign unambiguously the absolute configuration to boron in the enantiomeric boronate-imine complex 10a.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008) [source] |