Advanced Synthesis and Catalysis

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Rhodium(III)‐Catalyzed Oxidative Olefination of Picolinamides: Convenient Synthesis of 3‐Alkenylpicolinamides
Advanced Synthesis and Catalysis - Tập 356 Số 5 - Trang 1038-1046 - 2014
Jun Zhou, Bo Li, Zhenchao Qian, Bing‐Feng Shi
AbstractA rhodium(III)‐catalyzed selective olefination of picolinamide derivatives has been developed. The reaction shows high regioselectivity, low catalyst loading (0.5 mol%), high yield and good functional group tolerance, providing a convenient strategy for the synthesis of 3‐alkenylpicolinamides.
Nanocrystalline Magnesium Oxide‐Stabilized Palladium(0): An Efficient and Reusable Catalyst for Suzuki and Stille Cross‐Coupling of Aryl Halides
Advanced Synthesis and Catalysis - Tập 347 Số 15 - Trang 2002-2008 - 2005
M. Lakshmi Kantam, Sarabindu Roy, Moumita Roy, B. Sreedhar, B. M. Choudary
AbstractA nanocrystalline magnesium oxide‐stabilized palladium(0) catalyst is prepared by counterion stabilization of PdCl42− with nanocrystalline MgO followed by reduction. This ligand‐free heterogeneous nanocrystalline MgO‐stabilized nanopalladium [NAPMgPd(0)] catalyst using the basic MgO in place of basic ligands exhib...... hiện toàn bộ
Visible‐Light‐Driven Multicomponent Radical Cascade Versatile Alkylation of Quinoxalinones Enabled by Electron Donor Acceptor Complex in Water
Advanced Synthesis and Catalysis - - 2023
Bin Sun, Xiao‐Li Tang, Xiaohui Zhuang, Lan Ling, Panyi Huang, Jiayang Wang, Can Jin
AbstractAn operationally simple aqueous phase three‐component photochemical strategy for the alkylation of quinoxalin‐2(1H)‐ones with diethyl α‐bromomalonate and unactivated alkenes in the absence of both photoredox catalysts and additive has been developed. This reaction is driven by the photochemical activity ...... hiện toàn bộ
Making Copper(0) Nanoparticles in Glycerol: A Straightforward Synthesis for a Multipurpose Catalyst
Advanced Synthesis and Catalysis - Tập 359 Số 16 - Trang 2832-2846 - 2017
Trung Dang‐Bao, Christian Pradel, Isabelle Favier, Montserrat Gómez
AbstractSmall zero‐valent copper nanoparticles (CuNPs) have been straightforwardly prepared from Cu(I) and Cu(II) precursors in glycerol and in the presence of polyvinylpyrrolidone as stabilizer. Thanks to the negligible vapor pressure of the solvent, these original nano‐systems could be directly characterized in glycerol as well as in the solid state, exhibiting r...... hiện toàn bộ
Efficient and Eco‐Friendly Process for the Synthesis of Bis(1H‐indol‐3‐yl)methanes using Ionic Liquids
Advanced Synthesis and Catalysis - Tập 345 Số 3 - Trang 349-352 - 2003
J. S. Yadav, B. V. Subba Reddy, Sunitha Sadula
AbstractIndoles react smoothly with carbonyl compounds in 1‐butyl‐3‐methylimidazolium tetrafluoroborate ([bmim]BF4) or 1‐butyl‐3‐methylimidazolium hexafluorophosphate ([bmim]PF6) ionic liquids under mild reaction conditions to afford the corresponding bis‐indolylmethanes in excellent yields. These ionic liquids can be recov...... hiện toàn bộ
Ionic Liquids as Solvents for Catalyzed Oxidations of Organic Compounds
Advanced Synthesis and Catalysis - Tập 348 Số 3 - Trang 275-295 - 2006
Jacques Мuzart
AbstractThis review summarizes the oxidation methods of organic compounds carried out in the presence of a catalyst using ionic liquids or molten ammonium salts as solvents. From an ecological point of view, these procedures are particularly interesting when the catalyst is efficiently immobilized in the solvent, thus leading to a reusable system.
Immobilization of Porphyrinatocopper Nanoparticles onto Activated Multi‐Walled Carbon Nanotubes and a Study of its Catalytic Activity as an Efficient Heterogeneous Catalyst for a Click Approach to the Three‐Component Synthesis of 1,2,3‐Triazoles in Water
Advanced Synthesis and Catalysis - Tập 351 Số 14-15 - Trang 2391-2410 - 2009
Ghodsi Mohammadi Ziarani, M. Hassan Beyzavi, Afsaneh Safavi, Mohammad Mahdi Doroodmand, Reza Khalifeh
AbstractAn efficient, regioselective, one‐pot and two‐step synthesis of β‐hydroxy 1,4‐disubstituted 1,2,3‐triazoles from a wide range of non‐activated terminal alkynes and epoxides and sodium azide by way of a three‐component click reaction using a catalytic amount of [meso‐tetrakis(o‐...... hiện toàn bộ
New Indenylidene‐Schiff Base‐Ruthenium Complexes for Cross‐Metathesis and Ring‐Closing Metathesis
Advanced Synthesis and Catalysis - Tập 351 Số 16 - Trang 2689-2701 - 2009
Ana M. Lozano Vila, Stijn Monsaert, Renata Drozdzak, Stanisław Wołowiec, Francis Verpoort
AbstractWe here report on the stability and catalytic activity of new indenylidene‐Schiff base‐ruthenium complexes 3a–f through representative cross‐metathesis (CM) and ring‐closing metathesis (RCM) reactions. Excellent activity of the new complexes was found for the two selected RCM reactions; prominent conversion was ...... hiện toàn bộ
Regioselective and Enantioselective Hydroformylation of Dialkylacrylamides
Advanced Synthesis and Catalysis - Tập 352 Số 6 - Trang 1047-1054 - 2010
Gary M. Noonan, David J. Newton, Christopher J. Cobley, Andrés Suárez, Antonio Pizzano, Matthew L. Clarke
AbstractDimethylacrylamide can be hydroformylated with very high chemo‐ and regioselectivity. Asymmetric hydroformylation of this substrate is possible, provided steps are taken to minimise racemisation of the aldehyde products, and this work demonstrates the effect of various conditions and variables on racemisation. Using the Landis diazaphospholane ligands up to...... hiện toàn bộ
Photoinduced Radical Cyclization of 1,6‐Diynes: Rapid Access to Highly Substituted Carbocyclic and Heterocyclic Compounds
Advanced Synthesis and Catalysis - - 2023
Mohana Reddy Mutra, Yu‐Ting Chen, Jeh‐Jeng Wang
AbstractWe have developed photoinduced sulfonyl radical‐triggered cyclization of 1,6‐dynes without metals, oxidants, or additives. During the reaction, three new bonds are formed (−SO2−C, C−C, and C−I/C−Se−) under mild conditions, with excellent selectivity. The conversion is temporally and atomically economical and is easy to handle even on a ...... hiện toàn bộ
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