Representative Procedure for the Copper-Catalyzed Intramolecular
Palladium-Catalyzed Intramolecular Cyclization of Nitroalkenes : Synthesis of Thienopyrroles
... Conclusions In summary, a new synthetic method for the preparation of thienopyrroles has been developed. The procedure is simple and employs substrates that are in most cases synthesizable in one step from cheap ...
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Divergent Palladium- and Platinum-Catalyzed Intramolecular Hydroamination/Hydroarylation of O-Propargyl-2-aminophenols
... In the case of the electron-rich benzopyrans (3a, d, e, h, i), which were obtained in good yields, the presence of an unreacted amino group prompted us to investigate a further functionalization with the insertion of a ...
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Copper-Catalyzed Borylation of Hemiaminal Ethers and Ruthenium-Catalyzed Tandem Reactions of Nitrogen-Tethered Dienes
... Figure 2.2 Proposed models for observed diastereoselectivity Sun and coworkers evaluated different types of NHC ligands in the above- mentioned Ellman’s borylation strategy, and developed a one-pot procedure for ...
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Copper-catalyzed N-arylation of heterocycles in ethylene glycol medium
... the procedure by applying the optimized conditions (Table 1, entry 10 for ArI and entry 11 for ArBr) to the reactions of some other nitrogen-heterocycles with dierent aryl ...
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Development of a Method for the Copper Catalyzed Asymmetric Propargylation of Oxime Esters
... Table 2.10. Effects of copper stoichiometry with and without base on the propargylation reaction. Schaus notes that the greater ring strain in the five-membered ring of borolane 29 is thought to cause it to ...
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Copper oxide nanoparticles catalyzed direct N alkylation of amines with alcohols
... Typical procedure for the N-alkylation of amines with alcohols: A mixture of amine (1 mmol) alcohol (1.2 mmol), K 2 CO 3 (1.5 mmol) and CuO NPs (3 mol %) in toluene (3 mL) was stirred at 110 o C temperature for 12 ...
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Copper-Catalyzed Arylation Reaction in the Synthesis of New Derivatives of Angular Triazaphenoxazinone
... 3.2 General Procedure for Cu-Catalyzed N-Arylation of Compound 8 with Derivatives of Aryltriolborate. To a round bottom flask of 100ml, copper acetate (0.1mmol), trimethylamine N-oxide (1.1mmol), 4Å ...
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New methods for copper-catalyzed decarboxylative C-H arylation reactions
... Pd-catalyzed intramolecular decarboxylative C-H arylation of 2-phenoxy substituted benzoic acids to form biaryl furan ...the intramolecular ODC, though through a radical ...Ag catalyzed ...
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A New Procedure for Electroless Tin Plating of Copper
... either catalyzed by the surface of the substrate or by some catalytic metal implaced onto the surface of the substrate or by some catalytic metal implaced onto the surface both to initiate the reduction and to ...
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Markovnikov Selective Hydroboration of Olefins Catalyzed by a Copper N-Heterocyclic Carbene Complex
... S-22 7. Unsuccessful substrates The substrates shown below were run following the general procedure for hydroboration. Note that the substrates that ended up in this table showed less than a 25% yield by 1 H NMR ...
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Development of new reactions catalyzed by copper(I) complexes using silylboranes and bisboronates as pronucleophiles
... III.3.2. Activation of Si-B bond 25 Si-B bond displays several attractive features. First it is sufficiently stable with appropriate substitution at the boron atom and secondly the difference in affinity between boron ...
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Recent Advances in Recoverable Systems for the Copper-Catalyzed Azide-Alkyne Cycloaddition Reaction (CuAAC)
... of copper tubular reactors or supported systems in meso-sized fluidic devices ...the procedure to the CuAAC coupling between the azide-modified fluorescent dye Flu568-N 3 and propargylamine led to product ...
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Highly Effective Copper-Catalyzed Decarboxylative Coupling of Aryl Halides with Alkynyl Carboxylic Acids
... General procedure for copper-catalyzed decarboxylative coupling of various aryl halides and alkynoic acids in the presence of A: Aryl halide (0.5 mmol), alkynoic acid (0.6 mmol), CuI ([r] ...
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Efficient synthesis of triazlolic peptidomimetics via copper-catalyzed azide- alkyne [3+2] cycloaddition
... The reaction mixture was stirred at room temperature for 24 h. A white solid was precipitated and it was removed by filtration. The filtrate was evaporated under vacuum and the resulting residue extracted by ethyl ...
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Photoinduced, Copper-Catalyzed Alkylation of Amines: A Mechanistic Study of the Cross-Coupling of Carbazole with Alkyl Bromides
... Detection of EPR active [Li(CH 3 CN) n ][Cu II (carb) 3 ] in a catalytic reaction mixture A 4 mL solution of the standard reaction mixture containing [Li(MeCN) n ][Cu(carbazolide) 2 ] (0.0067 mmol), lithium carbazolide ...
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Indium-catalyzed intramolecular hydrarylation of alkynes : aplications in organic synthesis
... a 130.1 m/z que concuerda con el ion molecular. Desde el punto de vista sintético cabe señalar la importancia de la obtención del producto de hidroarilación 1a (17%) ya que es el primer ejemplo de reacción de ...
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Calcium Chloride catalyzed Intramolecular Oxa Michael addition of 2’-Hydroxychalcone to Flavanone
... Abstract – An efficient cyclization of 2’-hydroxychalcone to flavanone using calcium chloride as a catalyst was developed. The scope of the reaction was studied with substituted 2’-hydroxychalcone and these chalcones was ...
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Copper-Catalyzed Azide Alkyne Cycloaddition Polymer Networks
... and copper salts to initiate the polymerization process with exquisite control of the reaction has been demonstrated in the literature by the formation of surface patterning of PEG hydrogels 11,14 , bulk ...
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Enantioselective nickel catalyzed intramolecular allylic alkenylations enabled by reversible alkenylnickel E/Z isomerization
... Connor Yap, Gabriel M. J. Lenagh-Snow, Somnath Narayan Karad, William Lewis, Louis J. Diorazio, and Hon Wai Lam* Abstract: Enantioselective nickel-catalyzed arylative cycliza- tions of substrates containing a ...
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Alkyl ethers as traceless hydride donors in brønsted acid catalyzed intramolecular hydrogen atom transfer
... Dedicated to Professor Samir Z. Zard in celebration of his 63th birthday Abstract: A new protocol for the deoxygenation of alcohols and the hydrogenation of alkenes under Brønsted acid catalysis has been developed. The ...
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