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Suzuki Reaction (suzuki + reaction)
Selected AbstractsChemInform Abstract: NiII,(,-Aryl) Complex Catalyzed Suzuki Reaction of Aryl Tosylates with Arylboronic Acids.CHEMINFORM, Issue 36 2010Xin-Heng Fan No abstract is available for this article. [source] ChemInform Abstract: In situ Formation of N,O-Bidentate Ligand via the Hydrogen Bond for Highly Efficient Suzuki Reaction of Aryl Chlorides.CHEMINFORM, Issue 35 2010Weibo Yang Abstract An efficient protocol is elaborated for the phosphine-free Suzuki reaction mediated by hydrogen bond complexes between EtOH and DMA. [source] ChemInform Abstract: Pd(OAc)2 Immobilized on Fe3O4 as Magnetically Separable Heterogeneous Catalyst for Suzuki Reaction in Water.CHEMINFORM, Issue 18 2010Ji-Young Jung 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: Efficient and Recyclable Dendritic Buchwald-Type Catalyst for the Suzuki Reaction.CHEMINFORM, Issue 10 2008Julietta Lemo 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] First Synthesis of ,-Keto Sulfoxides by a Palladium-Catalyzed Carbonylative Suzuki Reaction.CHEMINFORM, Issue 7 2006Mercedes Medio-Simon Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access the actual ChemInform Abstract, please click on HTML or PDF. [source] Phosphine-Free Palladium Acetate Catalyzed Suzuki Reaction in Water.CHEMINFORM, Issue 50 2005Leifang Liu Abstract For Abstract see ChemInform Abstract in Full Text. [source] Electronic Nature of N-Heterocyclic Carbene Ligands: Effect on the Suzuki Reaction.CHEMINFORM, Issue 40 2005Niloufar Hadei Abstract For Abstract see ChemInform Abstract in Full Text. [source] In situ Generated Functionalized Benzimidazol-2-ylidene-palladium Catalyst for Suzuki Reaction.CHEMINFORM, Issue 17 2005I. Oezdemir Abstract For Abstract see ChemInform Abstract in Full Text. [source] New Pyrazole-Tethered Schiffs Bases as Ligands for the Suzuki Reaction.CHEMINFORM, Issue 16 2005Anuradha Mukherjee Abstract For Abstract see ChemInform Abstract in Full Text. [source] Suzuki Reaction on Pyridinium N-(5-Bromoheteroar-2-yl)aminides.CHEMINFORM, Issue 9 2005M. Jose Reyes Abstract For Abstract see ChemInform Abstract in Full Text. [source] ChemInform Abstract: Suzuki Reaction of Vinyl Triflates from Six- and Seven-Membered N-Alkoxycarbonyl Lactams with Boronic Acids and Esters.CHEMINFORM, Issue 34 2001Ernesto G. Occhiato 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: Palladacyclic Phosphinite Complexes as Extremely High Activity Catalysts in the Suzuki Reaction.CHEMINFORM, Issue 17 2001Robin B. Bedford 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: The Synthesis of Some Benzimidazolium Salts and Use as Carbene Precursors in the Heck and Suzuki Reactions.CHEMINFORM, Issue 35 2010Beyhan Yigit Abstract 1-(2-Diisopropylaminoethyl)-3-alkylbenzimidazolium salts are shown to be good catalysts for Heck and Suzuki reactions. [source] ChemInform Abstract: Room Temperature Suzuki Reactions in Aqueous Media under Air by Palladium(II) Complexes with Pyrazole Derived Ligands.CHEMINFORM, Issue 33 2010Kai Xu Abstract The new complexes (I) are stable towards moisture and air. [source] ChemInform Abstract: Preparation of Monodentate Phosphinite Ligands: Their Applications in Palladium-Catalyzed Suzuki Reactions.CHEMINFORM, Issue 13 2008Yan-Huei Cheng 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 Trisubstituted Pyrimidines by Regioselective SNAr and Suzuki Reactions of Polyhalopyrimidines.CHEMINFORM, Issue 31 2006Jonathan M. Large 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] Synthesis of Novel Palladacycles and Their Application in Heck and Suzuki Reactions under Aerobic Conditions.CHEMINFORM, Issue 1 2005Zhengchang Xiong Abstract For Abstract see ChemInform Abstract in Full Text. [source] Efficient Diphosphane-Based Catalyst for the Palladium-Catalyzed Suzuki Cross-Coupling Reaction of 3-Pyridylboronic AcidsEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 13 2009Xing-Li Fu Abstract A highly active catalyst system derived from PdCl2 and2,2,,6,6,-tetramethoxy-4,4,-bis(diphenylphosphanyl)-3,3,-bipyridine (P-Phos) has been developed for the Suzuki cross-coupling reaction of pyridylboronic acid with a variety of aryl halides in good to excellent yields, even in the presence of hindered and functional groups. In addition, P-Phos also exhibited high activity in the palladium-catalyzed Suzuki reaction of 2,6-dimethoxypyridylboronic acid in excellent yields with a fast rate. The steric and electronic effects of the P-Phos,palladium complex to this cross-coupling reaction were also discussed.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] Fluorous-Silica-Supported Perfluoro-Tagged Palladium Complexes Catalyze Suzuki Couplings in WaterHELVETICA CHIMICA ACTA, Issue 11 2004Christoph Tzschucke Different Pd-complexes (see 2a,d and 3) with and without perfluoroalkyl tags were deposited on fluorous reversed-phase silica 1 and unmodified silica gel. These supported complexes were successfully used as precatalysts for the Suzuki reaction in H2O. H2O-Soluble aryl bromides were easily converted to the corresponding biphenyls. Although none of the complexes is H2O-soluble, the active catalyst is most likely homogeneously dissolved. Nevertheless, the Pd-leaching into the product was low. [source] Suzuki reaction of aryl chlorides using saturated N -heterocarbene ligandsHETEROATOM CHEMISTRY, Issue 7 2005Ismail Özdemir From readily available starting materials, six 1,3-dialkyl-imidazolinium bromides (2a,f) have been prepared and characterized by conventional spectroscopic methods and elemental analyses. The incorporation of saturated N -heterocyclic carbenes into palladium precatalysts gives high catalyst activity in the Suzuki coupling of deactivated aryl chloride substrates in aqueous media. The complexes were generated in the presence of Pd(OAc)2 by in situ deprotonation of 2a,f. © 2005 Wiley Periodicals, Inc. Heteroatom Chem 16:557,561, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20140 [source] Regioselective Palladium(0)-Catalyzed Cross-Coupling Reactions and Metal-Halide Exchange Reactions of Tetrabromothiophene: Optimization, Scope and LimitationsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 10 2009ng Thanh Tùng Abstract The Suzuki reaction of tetrabromothiophene with arylboronic acids provides a regioselective approach to various 5-aryl-2,3,4-tribromothiophenes, symmetrical 2,5-diaryl-3,4-dibromothiophenes, and tetraarylthiophenes. Unsymmetrical 2,5-diaryl-3,4-dibromothiophenes are prepared by Suzuki reaction of 5-aryl-2,3,4-tribromothiophenes. Tetraarylthiophenes containing two different types of aryl groups are obtained by Suzuki reactions of 2,5-diaryl-3,4-dibromothiophenes. During the optimization of the conditions of each individual reaction, the solvent, the catalyst and the temperature play an important role. In several cases, classical conditions [use of tetrakis(triphenylphosphane)palladium(0), Pd(PPh3)4, as the catalyst] gave excellent yields. The yields of those transformations which failed or proceeded sluggishly could be significantly improved by application of a new biarylmonophosphine ligand developed by Buchwald and co-workers. Regioselective metal-halide exchange reactions of tetrabromothiophene provide a convenient approach to various 2,5-disubstituted 3,4-dibromothiophenes. 5-Alkyl-2-trimethylsilyl-3,4-dibromothiophenes could be prepared in one pot by sequential addition of trimethylchlorosilane and alkyl bromides. The reaction of tetrabromothiophene with methyl chloroformate and subsequent Suzuki reactions afforded 3,4-diaryl-2,5-bis(methoxycarbonyl)thiophenes. [source] Synthesis and enantioselectivities of soluble polymers incorporating optically active binaphthyl and binaphtholJOURNAL OF APPLIED POLYMER SCIENCE, Issue 2 2007Xiaowei Zou Abstract A polymer (P-1) was synthesized through the polymerization of (S)-6,6,-dibromo-3,3,-dibutyl-1,1,-binaphthol with (S)-2,2,-dioctoxy-1,1,-binaphthyl-6,6,-boronic acid in a Pd-catalyzed Suzuki reaction, and another polymer (P-2) was synthesized through the polymerization of (S)-6,6,-dibromo-3,3,-dibutyl-1,1,-binaphthol with (S)-6,6,-diethynyl-2,2,-dioctoxy-1,1,-binaphthyl in a Pd-catalyzed Sonogashira reaction. The two polymers showed good solubility in some common solvents and were characterized with NMR, Fourier transform infrared, gel permeation chromatography, and circular dichroism spectroscopy. The application of the chiral monomers and polymers in the asymmetric addition of diethyl zinc to benzaldehyde was studied. The results indicated that P-1, P-2, and the monomer (S)-3,3,-dibutyl-1,1,-binaphthol were efficient ligands in the asymmetric addition of diethyl zinc to benzaldehyde. The chiral polymer ligands P-1 and P-2 were more efficient than their monomeric version, (S)-3,3,-dibutyl-1,1,-binaphthol, and could be easily recovered and reused without a loss of catalytic activity or enantioselectivity. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007 [source] 2-Aryl-4-azido-3-(bromo/iodo)quinolines as substrates for the synthesis of primary 4-amino-2,3-disubstituted quinoline derivativesJOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 5 2008Malose J. Mphahlele Staudinger reaction of the 2-aryl-4-azido-3-bromoquinolines and 2-aryl-4-azido-3-iodoquinolines with triphenyl phosphine in refluxing tetrahydrofuran afforded series of 2-aryl-3-halogeno-4-(triphenylphosphoranylideneamino)quinolines. The latter were, in turn, hydrolyzed to the corresponding primary 4-amino-2-aryl-3-(bromo/iodo)quinolines using 80% acetic acid under reflux. Tetrakis(triphenylphosphine)-palladium(O)-catalyzed Suzuki reaction of the 2-aryl-3-iodo-4-(triphenylphosphoranylideneamino)-quinolines with phenylboronic acid in dimethyl formamide in the presence of 2 M K2CO3 followed by hydrolysis of the incipient 2,3-diaryl-4-(triphenylphosphoranylideneamino)quinolines with 80% acetic acid afforded the 4-amino-2,3-diarylquinolines. [source] Solid-Phase Preparation of a Library Based on a Phenylalanine ScaffoldMOLECULAR INFORMATICS, Issue 8 2005Aina Colombo Abstract A convenient strategy (preliminary study, preproduction and production) for the solid-phase preparation of a library using 4-iodophenylalanine as a scaffold is described. The aromatic ring was first modified via the Suzuki reaction and the amino position was subsequently derivatized into amides, sulfonamides, amines, carbamates and ureas. The scope and limitations of all of the reactions carried out in parallel are discussed. The solid-phase synthesis of a library of 315 individual compounds was attempted by using seven boronic acids and nine representative compounds from each of the following classes: carboxylic acids, sulfonyl chlorides, aldehydes, alcohols and isocyanates. Owing to the failure of the amine derivatization, 297 compounds were ultimately obtained. [source] Preparation of N -alkylpyridinium aryl ketone derivatives via the surfactant promoted cross-coupling reaction of N -alkylpyridiniumboronic acids with carboxylic anhydride in water at room temperatureAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 5 2009H. Matondo Abstract The palladium (II) chloride catalyzed coupling reaction of N -alkylpyridiniumboronic acids with benzoic anhydride was carried out smoothly in water to give high yields of ketones without the use of a phosphine ligand. The reaction was conducted under mild conditions at room temperature. In this article, by focusing on the Suzuki reaction, it is shown how this method can impact modern synthetic chemistry, making reactions faster, easier and cleaner. Copyright © 2009 John Wiley & Sons, Ltd. [source] Water-soluble 2-arylnaphthoxazole-derived palladium (II) complexes as phosphine-free catalysts for the Suzuki reaction in aqueous solventAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 4 2008Hong Li Abstract Two water-soluble palladium (II) complexes 2 and 4 have been synthesized from easily available 2-arylnaphthoxazole derivatives. They were successfully applied to the Suzuki coupling of aryl bromides with phenylboronic acid in water at 100 °C under phosphine-free conditions. Copyright © 2008 John Wiley & Sons, Ltd. [source] ChemInform Abstract: In situ Formation of N,O-Bidentate Ligand via the Hydrogen Bond for Highly Efficient Suzuki Reaction of Aryl Chlorides.CHEMINFORM, Issue 35 2010Weibo Yang Abstract An efficient protocol is elaborated for the phosphine-free Suzuki reaction mediated by hydrogen bond complexes between EtOH and DMA. [source] Highly Efficient Pd/C-Catalyzed Suzuki Coupling Reaction of p -(un)Substituted Phenyl Halide with (p -Substituted phenyl) Boronic AcidCHINESE JOURNAL OF CHEMISTRY, Issue 8 2007Ming-Gang Hu Abstract A highly efficient Pd/C-catalyzed ligandless, heterogeneous Suzuki reaction of p -(un)substituted phenyl halide with (p -substituted phenyl)boronic acid in DMF/H2O solvent in a short reaction time (0.5 h) at 75 °C was developed. The key for such a catalytic system was the addition of 1 equivalent of tetrabutylammonium bromide. A wide variety of substituents can be tolerated and high yields of cross coupling products were achieved. The palladium catalyst can be easily recovered and reused without significantly decreasing its efficiency. [source] Regioselective Palladium(0)-Catalyzed Cross-Coupling Reactions and Metal-Halide Exchange Reactions of Tetrabromothiophene: Optimization, Scope and LimitationsADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 10 2009ng Thanh Tùng Abstract The Suzuki reaction of tetrabromothiophene with arylboronic acids provides a regioselective approach to various 5-aryl-2,3,4-tribromothiophenes, symmetrical 2,5-diaryl-3,4-dibromothiophenes, and tetraarylthiophenes. Unsymmetrical 2,5-diaryl-3,4-dibromothiophenes are prepared by Suzuki reaction of 5-aryl-2,3,4-tribromothiophenes. Tetraarylthiophenes containing two different types of aryl groups are obtained by Suzuki reactions of 2,5-diaryl-3,4-dibromothiophenes. During the optimization of the conditions of each individual reaction, the solvent, the catalyst and the temperature play an important role. In several cases, classical conditions [use of tetrakis(triphenylphosphane)palladium(0), Pd(PPh3)4, as the catalyst] gave excellent yields. The yields of those transformations which failed or proceeded sluggishly could be significantly improved by application of a new biarylmonophosphine ligand developed by Buchwald and co-workers. Regioselective metal-halide exchange reactions of tetrabromothiophene provide a convenient approach to various 2,5-disubstituted 3,4-dibromothiophenes. 5-Alkyl-2-trimethylsilyl-3,4-dibromothiophenes could be prepared in one pot by sequential addition of trimethylchlorosilane and alkyl bromides. The reaction of tetrabromothiophene with methyl chloroformate and subsequent Suzuki reactions afforded 3,4-diaryl-2,5-bis(methoxycarbonyl)thiophenes. [source] Synthesis and microwave-assisted catalytic activity of novel bis-benzimidazole salts bearing furfuryl and thenyl moieties in Heck and Suzuki cross-coupling reactionsAPPLIED ORGANOMETALLIC CHEMISTRY, Issue 5 2010lmaz, Ülkü Y Abstract A mixture of bis-benzimidazole salts (1,7), Pd(OAc)2 and K2CO3 in DMF H2O catalyzes, in high yield, the Suzuki and Heck cross-coupling reactions assisted by microwave irradiation in a short time. In particular, the yields of the Heck and Suzuki reactions with aryl bromides were found to be nearly quantative. The synthesized bis-benzimidazole salts (1,7) were identified by 1H13C NMR, IR spectroscopic methods and micro analysis. Copyright © 2010 John Wiley & Sons, Ltd. [source] | ||||||||||||||||||||||