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Alkynyl Halides (alkynyl + halide)
Selected AbstractsCopper-Catalyzed Cross-Coupling of Alkyl and Aryl Grignard Reagents with Alkynyl Halides,ANGEWANDTE CHEMIE, Issue 7 2010Gérard Cahiez Dr. Kupfer kann,s noch! Mit einer neuen, allgemein verwendbaren Strategie gelingt die Titelreaktion (siehe Schema; NMP=N -Methylpyrrolidinon). Die Reaktion ist chemoselektiv und ermöglicht die Synthese einer Vielzahl einfacher und funktionalisierter interner Alkine in hohen Ausbeuten. [source] ChemInform Abstract: Copper-Catalyzed Cross-Coupling of Alkyl and Aryl Grignard Reagents with Alkynyl Halides.CHEMINFORM, Issue 24 2010Gerard Cahiez 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] ChemInform Abstract: A One-Pot, Stereoselective Synthesis of 2-Ethoxycarbonyl-Substituted 1,3-Dienes and 1,3-Enynes by Hydrostannylation , Stille Tandem Reaction of Tributyltin Hydride with Alkynyl Esters and Alkenyl or Alkynyl Halides.CHEMINFORM, Issue 41 2009Mingzhong Cai 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: Nickel-Catalyzed Coupling Reaction of Zirconacyclopentandienes with Two Alkynyl Halides: Formation of Multi-Substituted Arylalkynes.CHEMINFORM, Issue 15 2001Hui Wang 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] Scope and Limitations of Palladium-Catalyzed Cross-Coupling Reactions with Organogold CompoundsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 8 2010A. Stephen Abstract Five different alkenylgold(I) phosphane complexes were prepared and then investigated in [1,1,-bis(diphenylphosphino)ferrocene]palladium(II) dichloride-catalyzed cross-coupling reactions with different aryl halides, heterocyclic halides, an alkenyl halide, an alkynyl halide, allylic substrates, benzyl bromide and an acid chloride. With regard to the halides, the iodides were highly reactive, bromides or chlorides gave significantly reduced yields or failed, allylic acetates failed, too. The cross-coupling partners contained a number of different functional groups, while free carboxylic acids did not deliver cross-coupling products and o,o -disubstituted arenes failed as well, a broad range of other functional groups like nitro groups, nitrile groups, ester groups, ,,,-unsaturated ester groups and lactones, aldehydes, alkoxy groups, pyridyl groups, thienyl groups, unprotected phenols and anilines, even aryl azides were tolerated. The structures of one alkenylgold(I) species and of four of the cross-coupling products were proved by crystal structure analyses. [source] A one-pot, stereoselective synthesis of 2-ethoxycarbonyl-substituted 1,3-dienes and 1,3-enynes by hydrostannylation,Stille tandem reaction of tributyltin hydride with alkynyl esters and alkenyl or alkynyl halidesAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 6 2009Mingzhong Cai Abstract 2-Ethoxycarbonyl-substituted 1,3-dienes and 1,3-enynes can be stereoselectively synthesized in one pot under mild conditions, in good yields, by the palladium-catalyzed hydrostannylation of alkynyl esters, followed by Stille coupling with alkenyl or alkynyl halides, respectively. Copyright © 2009 John Wiley & Sons, Ltd. [source] | ||||||||||