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Palladium-Catalyzed Coupling Reactions (palladium-catalyzed + coupling_reaction)

Distribution by Scientific Domains
Chemistry100%
Distribution within Chemistry
General & Introductory Chemistry60%
Organic Chemistry40%

Selected Abstracts

Palladium-Catalyzed Coupling Reaction of an Enol Nonaflate with (Vinyl)tributylstannanes and Acetylenes.

CHEMINFORM, Issue 43 2002
Akimori Wada
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Palladium-Catalyzed Coupling Reactions: Carbonylative Heck Reactions To Give Chalcones,

ANGEWANDTE CHEMIE, Issue 31 2010
Xiao-Feng Wu
Chalkone leicht gemacht: Carbonylierende Heck-Reaktionen von Aryl- oder Alkenyltriflaten mit Kohlenmonoxid und aromatischen Olefinen gelingen in Gegenwart von Palladiumkatalysatoren (siehe Schema; dppp=1,3-Bis(diphenylphosphino)propan, Tf=Triflat; R=Aryl, Vinyl). Dieses Verfahren schließt eine Lücke zwischen carbonylierenden Suzuki- und Sonogashira-Reaktionen. [source]

Palladium-Catalyzed Coupling Reactions of Thioimidate N-Oxides: Access to ,-Alkenyl- and ,-Aryl-Functionalized Cyclic Nitrones,

ANGEWANDTE CHEMIE, Issue 3 2010
Julie Schleiss
Überraschend hilfreich waren chirale Thioimidat-N-oxide bei der Synthese aryl- und vinylsubstituierter cyclischer Ketonitrone durch eine Liebeskind-Srogl-Reaktion. Dieser neue Ansatz scheint effizient und breit anwendbar zu sein (siehe Schema). [source]

Recent Applications of Palladium-Catalyzed Coupling Reactions in the Pharmaceutical, Agrochemical, and Fine Chemical Industries

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 18 2009
Christian Torborg
Abstract Palladium-catalyzed coupling reactions have become a central tool for the synthesis of biologically active compounds both in academia and industry. Most of these transformations make use of easily available substrates and allow for a shorter and more selective preparation of substituted arenes and heteroarenes compared to non-catalytic pathways. Notably, molecular-defined palladium catalysts offer high chemoselectivity and broad functional group tolerance. Considering these advantages, it is not surprising that several palladium-catalyzed coupling reactions have been implemented in the last decade into the industrial manufacture of pharmaceuticals and fine chemicals. In this review different examples from 2001,2008 are highlighted, which have been performed at least on a kilogram scale in the chemical and pharmaceutical industries. [source]

Preparation of C3 -Symmetric Homochiral syn -Trisnorbornabenzenes through Regioselective Cyclotrimerization of Enantiopure Iodonorbornenes

CHEMISTRY - AN ASIAN JOURNAL, Issue 8 2009
Masud Reza
Abstract C3 -symmetric homochiral (,)- syn -trisoxonorbornabenzene 1 possessing a rigid cup-shaped structure was synthesized through a novel regioselective cyclotrimerization of enantiopure iodonorbornenes catalyzed by palladium nanoclusters. The yield of the cyclotrimerization was dependent on the stability of the palladium clusters, which was ascertained from the appearance and TEM images of the reaction mixtures. The efficient preparation of (,)- syn - 1 was established in short steps, including the newly developed cyclotrimerization reaction. The thus-prepared homochiral (,)- syn - 1 can serve as a key intermediate for the synthesis of C3 -symmetric homochiral cup-shaped molecules with a helical arrangement of substituents. Introduction of several types of substituents was well demonstrated through palladium-catalyzed coupling reactions with the corresponding phosphate and triflate of (,)- syn - 1. [source]