ChemInform Abstract: Palladium-Catalyzed Aryl—Aryl Coupling in Water Using Molecular Hydrogen:...

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2000 polyphenyl derivatives polyphenyl derivatives Q 0700 09 - 103 Palladium-Catalyzed Aryl–Aryl Coupling in Water Using Molecular Hydrogen: Kinetics and Process Optimization of a Solid-Liquid-Gas System. Halobenzenes (I) are coupled to the corresponding symmetrical biaryls (II) using hydrogen and NaOH in the presence of catalytic amounts of Pd/C and polyethyleneglycol 400. The competitive direct reduction can be minimized by optimization of the individual reaction conditions. (MUKHOPADHYAY, SUDIP; ROTHENBERG, GADI; WIENER, HAROLD; SASSON, YOEL; Tetrahedron 55 (1999) 51, 14763-14768; Casali Inst. Appl. Chem., Hebrew Univ., Jerusalem 91904, Israel; EN) 1

Transcript of ChemInform Abstract: Palladium-Catalyzed Aryl—Aryl Coupling in Water Using Molecular Hydrogen:...

2000 polyphenyl derivatives

polyphenyl derivativesQ 0700

09 - 103Palladium-Catalyzed Aryl–Aryl Coupling in Water Using MolecularHydrogen: Kinetics and Process Optimization of a Solid-Liquid-GasSystem. — Halobenzenes (I) are coupled to the corresponding symmetricalbiaryls (II) using hydrogen and NaOH in the presence of catalytic amountsof Pd/C and polyethyleneglycol 400. The competitive direct reduction canbe minimized by optimization of the individual reaction conditions. —(MUKHOPADHYAY, SUDIP; ROTHENBERG, GADI; WIENER, HAROLD;SASSON, YOEL; Tetrahedron 55 (1999) 51, 14763-14768; Casali Inst. Appl.Chem., Hebrew Univ., Jerusalem 91904, Israel; EN)

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