Negishi Cross-Coupling Reaction (negishi + cross-coupl_reaction)

Distribution by Scientific Domains


Selected Abstracts


Synthesis of Differently Disubstituted 2,2,-Bipyridines by a Modified Negishi Cross-Coupling Reaction

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 20 2003
Arne Lützen
Abstract A general practical approach to a number of differently disubstituted 2,2,-bipyridines from substituted 2-bromo- and 2-chloropyridines by application of modified Negishi cross-coupling conditions has been developed. These 2,2,-bipyridines carry versatile functional groups that can be elaborated further, as demonstrated for some examples. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003) [source]


ChemInform Abstract: 3-Iodoselenophene Derivatives: A Versatile Substrate for Negishi Cross-Coupling Reaction.

CHEMINFORM, Issue 18 2008
Ricardo F. Schumacher
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]


ChemInform Abstract: An Efficient Palladium-Catalyzed Negishi Cross-Coupling Reaction with Arylvinyl Iodides: Facile Regioselective Synthesis of E-Stilbenes and Their Analogues.

CHEMINFORM, Issue 4 2008
M. Shahjahan Kabir
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]


Synthesis of Chiral Amino Acids with Metal Ion Chelating Side Chains from L-Serine Using Negishi Cross-Coupling Reaction.

CHEMINFORM, Issue 24 2006
Michael Kruppa
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]


Introduction of Aromatic and Heteroaromatic Groups in the 2- and 8-Positions of the Tröger's Base Core by Suzuki, Stille and Negishi Cross-Coupling Reactions , A Comparative Study

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 16 2005
Carlos Solano
Abstract A comparative study on the bis(functionalization) of the Tröger's base core by aromatic and heteroaromatic groups using palladium-catalyzed cross-coupling reactions is presented. Three different reactions, the Suzuki, Stille, and Negishi couplings, were investigated using Tröger's base analogues equally substituted in the 2,8-positions with (HO)2B, Bu3Sn and ZnCl groups, respectively, as the metallated component. Six aryl halides with different electronic and steric properties were employed as coupling partners. The presence of the bulky and electron-rich phosphane P(tBu)3 as co-catalyst was found to play an important role. In addition, the palladium source, [Pd(PPh3)4] or [Pd2(dba)3], was also found to be an important factor for the yield of the reactions. The Suzuki coupling was found to be the best method in general, giving excellent yields for most aryl halides, whereas the Stille and Negishi couplings gave moderate to good yields. Finally, the crystal structures of the 4-nitrophenyl- and the 2-pyridyl-appended analogues of Tröger's base, 7d and 7f, are presented in the Supporting Information. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005) [source]


ChemInform Abstract: Construction of Functionalized/Substituted Bipyridines by Means of Negishi Cross-Coupling Reactions.

CHEMINFORM, Issue 3 2002
Formal Synthesis of (.+-.)-Cytisine.
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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]


Structure,Reactivity Relationships in Negishi Cross-Coupling Reactions

CHEMISTRY - A EUROPEAN JOURNAL, Issue 1 2010
Zhi-Bing Dong Dr.
Abstract Competition experiments have been performed to determine the relative reactivities of substituted bromobenzenes and of different arylzinc reagents in the [Pd(PPh3)4]-catalyzed Negishi cross-coupling reaction in THF at 25,°C. The cross-coupling reactions are accelerated by electron acceptors in the bromobenzenes, the effect of which increases in the order ortho [source]